KProbing the Android kernel for memory access times - Hardware Hacking General

I'm trying to determine exactly when the external memory gets accessed (whether its internal flash or an SD card I don't care). I have successfully built a kernel module with kprobes monitoring do_fork() children lifespan times and verified it with an adb dmesg, which wasn't trivial. But I'm having trouble finding the kernel routine that solely accesses external memory, or has a parameter depicting access to external memory. Any suggestions?
Sent from my Galaxy Nexus using Tapatalk 2

As far as I understood - you want to hook functions that are writing/reading data&commands to the SFR's of certain controller (SDHC in your case)
I'm not sure what's order of calling or full abstract of that in Linux. But on most of OS there should be hierarchy like this, in given order
1) filesystem tree (everything under /)
2) filesystem drivers (for eg. fat32, ext2, ext4)
3) device drivers - perhaps part of some HAL exposing read/write functions (some generic thing like "io_device")
4) device type drivers - still common for all linux distros, like kernel MMC/SDHC/HSMMC driver (AFAIR you can find it in /drivers/mmc/~, there are few folders)
5) cpu/platform specific drivers - in case of ARMLinux, let's say for S5PC110 (Samsung Hummingbird) there's part in arch/arm/mach-s5pv210/, part in arch/arm/plat-s5p (plat-samsung and plat-s3c aswell, depends on release/revision/implementation), and core - CPU specific part in /drivers/mmc/host/sdhci-s3c.c.
In OMAP2 CPUs I'd look for these in arch/arm/mach-omap2, plat-omap2 and drivers/mmc/host/sdhci-omap.c
Perhaps you want to hook it somewhere on level 4 or 5.
Consider searching through documentation directory of linux sources. And prepare for alot of grepping.
SDHCI controller SFR structure is usually mostly the same for all ARM SoCs so I think there was some file containing most of functions used for all of them.

Related

How To Download CE 6 OS design

Hi
I want to transfer my own windows ce 6.0 os design to a htc prophet ?
Is it possible?
I found a nk.bin file in os release dir. is it the same as nk.nbf or it needs something to be added to it like ipl/spl?
No.
Let me just verify that I understand you correctly:
You have Platform Builder for Windows CE (not Mobile) 6 and you compiled and OS.
Now you want to put it on your Prophet?
Here is why this can not work:
a) You do not have the hardware drivers. Even if by some miracle you got the Prophet BSP (board support package) from HTC, because CE 6 architecture is so different from CE 5 on which the BSP is based you would have to rewrite them.
b) The nk.bin Platform Builder produces is in plain binary format. The nk.nbf which the Prophet bootloader can recognize is in HTC's special encrypted format so the bootloader will not read the bin.
Yes. You get it right. I know if I want to use phone features completely I need BSP. But what if I want just use some standard features? just LCD and phone features.
Also I saw nbftool that decrypt and encrypt nbf files. Can I use it to encrypt files for prophet?
You need BSP for everything, not just "full features". Every little bit of hardware that connects to the CPU requires a driver unique for your device, that includes the screen, the digitizer (touch screen), hardware keys, USB port, SD card, etc.
This is why the Linux project for these devices hasn't moved beyond booting the kernel.
There are tons of work to be done (not to say it is impossible).
I am not sure about the nbftool but even if you manage to create an image that boots best case scenario is you will see something on the screen.
But you will have no way of controlling the device - no touch screen or keys, and no way to connect to it from windows since you do not have USB drivers.
Then what are the BSPs which exist in Wince by default. There is a ARMv4. How can I use it? Can you help me?
There is ARMv4 and there is Samsung, TI, Xscale, etc. Unlike x86 - all are different. Different memory map, different GPIO, different periferials.
Better waste your time on something else. Anyway CE 6 does not have phone features at all. Compile it for your PC and see that yourself.
mamaich said:
There is ARMv4 and there is Samsung, TI, Xscale, etc. Unlike x86 - all are different. Different memory map, different GPIO, different periferials.
Better waste your time on something else. Anyway CE 6 does not have phone features at all. Compile it for your PC and see that yourself.
Click to expand...
Click to collapse
I think ARMv4 BSP in Platform Builder already have enough driver for this type of CPUs. And HTC phones are ARMv4. So normaly I should be able to build and transfer my OS to there. CE 6 have buitin drivers for modem,LCD and so on. But there is no phone. Because phone is an app that runs on CE. So if I just want to use devices like modem It is enough. The problem is nbf files ae encrypted and os.bin file should encrypt to os.nb and then transfer to device.
shariat said:
I think ARMv4 BSP in Platform Builder already have enough driver for this type of CPUs. And HTC phones are ARMv4. So normaly I should be able to build and transfer my OS to there. CE 6 have buitin drivers for modem,LCD and so on. But there is no phone. Because phone is an app that runs on CE. So if I just want to use devices like modem It is enough. The problem is nbf files ae encrypted and os.bin file should encrypt to os.nb and then transfer to device.
Click to expand...
Click to collapse
you dont really understand the problem.
ARMv4 is not a cpu, it is the ARM version 4 instruction set ....
afaik your phone has some kind of OMAP.
i don't know if CE6 has a BSP for that, but even if it does, it will still not work without modifications.
a recent example. a friend of mine wanted to download a generix xscale 25x eboot (bootloader) to a device that had xscale 255. he almost killed the whole device because the RAM memory map of this generic eboot managed to overlap with the device's original bootloader memory space in ROM. (the virtual memory mapping differed in such an unlucky way.) and so the device's own bootloader thought it had to flash it in instead of loading it into RAM and it overwrote part of itself. luckily only the splashscreen got damaged...
(and of course the device would not boot this eboot.)
that's what happens when someone who has not ever dealt with hardware and memory mappings (i.e. you) tries to play with platform builder and flashing.
also, what is this about CE6 having built in drivers for the modem (you mean GPRS?) and LCD. it doesn't have the correct ones for your device.
and, the phone is more than just an app, it also needs drivers. the modem needs it too.
all in all...i strongly discourage you trying to flash that nk.bin.
it is not even in a format that your bootloader will understand, it is MS BIN format. the nk.nb0 in same release dir (or if there is none then cvrtbin will convert it) will be the raw format that needs to be encoded for nbf, but that is far from enough because it will never boot anyway. so forget this info.
cmonex said:
you dont really understand the problem.
ARMv4 is not a cpu, it is the ARM version 4 instruction set ....
afaik your phone has some kind of OMAP.
i don't know if CE6 has a BSP for that, but even if it does, it will still not work without modifications.
Click to expand...
Click to collapse
But at least the way of using loader is possible. Like how Linux is loaded
shariat said:
But at least the way of using loader is possible. Like how Linux is loaded
Click to expand...
Click to collapse
loader, for what purpose?
cmonex said:
loader, for what purpose?
Click to expand...
Click to collapse
For running WinCE , like Linux. Am i right? Linux devs uses Loader to load Linux on Mobile devices. I think I am confused. Help me on this. My purpose is to use my own OS design.
shariat said:
For running WinCE , like Linux. Am i right? Linux devs uses Loader to load Linux on Mobile devices. I think I am confused. Help me on this. My purpose is to use my own OS design.
Click to expand...
Click to collapse
well, for linux, the drivers have to be written too. (most of the time there are existing ones with source available that can be modified, though.)
so it is more complicated than that.
shariat: writing your own OS for this hardware is not impossible, but is not easy.
I suggest you go away for a while and get hold of platform builder and an arm reference guide and read everything you can about the device, the memory structure, your dedicated hardware structure, and then start writing.
Knowing how the hardware and CPU operate is fundamental to the OS you will write. Platform Builder will give you some source code access and help give you some ideas.
This is a nearly impossible task for a hobbyist coder. I'm sure people will help you, but you need to discuss what you have in mind.
Have a look here for some other easier ideas:
http://simpleos.iroot.ca/index.php
V

Installing Gentoo (Debian, Ubuntu, et cetera) on a Nexus One

Just like the title says, does anyone have any insight into installing a regular Linux distribution onto a Nexus One? It seems to use a fairly standard Linux kernel, so I imagine that one major obstacle has been cleared. The main problems are that I don't know how to tell it to go from the kernel into a normal Linux userspace (am I using the correct terminology?), and what sort of names would it use for its hardware devices -- would a regular Linux distribution be able to communicate with them without too much special configuration? (For example, would the MicroSD card be a standard sd* device, or would it have a different name?)
I believe there's a thread on the Nexus One Dev board about installing Debian.
I wrote a howto on booting debian. It wouldn't be too far-fetched to apply this to something like ubuntu/gentoo ect...
http://forum.xda-developers.com/showthread.php?t=631389

(W.I.P) CALIBAN`s RASPBERRY PI THREAD!!! 11.05.2014

Hey to all,i open this thread for sharing: info´s,give guides,post news and share some things that have to do with the lil PI,its work in progress for now,but many updates are planned,i hope you like some of it,many Greeeeeeetz!!!!!!
-------------------------------------------------------------------------------------------------------------------------
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"lightbox_start_slideshow": "Start slideshow",
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LETS START!!!!
---------------------------------
What is a Raspberry Pi?
---------------------------------
The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It is a capable little computer which can be used in electronics projects, and for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. We want to see it being used by kids all over the world to learn programming.
----------------------------------------------------------------------
RASPBERRY PI OPERATION SYSTEMS + LINKS:
----------------------------------------------------------------------
11.05.2014
RaspyFi - Audiophile Linux - http://www.raspyfi.com/
Rune Audio - http://www.runeaudio.com/certified-devices/#Raspberry-Pi
pipaOS - http://pipaos.mitako.eu/
SliTaz - http://www.slitaz.org/en/
Tiny Core Linux piCore - http://linux.softpedia.com/progDownload/Tiny-Core-Linux-piCore-Download-103260.html
Pwn Pi - penatration testing distro - http://www.pwnpi.com/
GeeXboX - MediacenterOS - http://www.geexbox.org/
-----
Raspbian Wheezy armhf - a minimal high perf. OS - http://www.raspbian.org/
Raspbmc - OS with Mediacenter - http://www.raspbmc.com/
RISC OS - https://www.riscosopen.org/wiki/documentation/show/Welcome to RISC OS Pi
QtonPI - http://qt-project.org/wiki/Qt-RaspberryPi
CryptoCat - http://en.wikipedia.org/wiki/Cryptocat
Debian wheezy + sqeeze - http://www.debian.org/ports/arm/
arch linux ARM - http://archlinuxarm.org/platforms/armv6/raspberry-pi
OpenELEC - MediaCenter - http://wiki.openelec.tv/index.php?title=Raspberry_Pi_FAQ
DarkELEC - MediaCenter - http://darkimmortal.com/category/raspberry-pi/
XBIAN - http://xbian.org/
Bodhi Linux - http://jeffhoogland.blogspot.co.at/2012/06/bodhi-linux-arm-alpha-release-for.html
Android PI - http://androidpi.wikia.com/wiki/Android_Pi_Wiki
Free BSD - http://www.raspberrypi.org/archives/3094
Net BSD - http://downloads.raspberrypi.org/images/netbsd/rpi-20130124/rpi-20130124.img.bz2
Adafruit Raspberry Pi Educational Linux Distro -
Fedora - http://zenit.senecac.on.ca/wiki/index.php/Raspberry_Pi_Fedora_Remix
RaspRazor - http://www.raspberrypi.org/phpBB3/viewtopic.php?f=66&t=11541
qemu - http://stackoverflow.com/questions/18776387/qemu-on-raspberry-pi-arch-linux-latest-sd-image
Raspberry Pi Development Virtual Machine -
piLEARN - www.pilearn.com/
NOOBS - https://github.com/raspberrypi/noobs/blob/master/README.md
Pidora - http://pidora.ca/
Raspberry Pi Foundation - http://www.raspberrypi.org/
Raspberry Pi Forum - http://www.raspberrypi.org/forum
Raspberry Pi Shop - http://www.raspberrypi.com/
Github-Userland-Repository - all whats need to build
Raspberry Pi Community Website-Premier Farnell/element14
Raspberry Pi XBMC - Mediacenter - http://wiki.xbmc.org/?title=Raspberry_Pi
Raspberry Pi ORG - http://www.raspberrypi.org/phpBB3/viewtopic.php?f=56&t=41444
KALI Linux(penetration softw) - http://www.kali.org/
BackTrack-penetration suite - http://de.wikipedia.org/wiki/BackTrack
OpenSUSE - open source - http://www.opensuse.org/en/
Open WrT - http://www.zoobab.com/raspberry-pi-openwrt
Puppy - http://www.murga-linux.com/puppy/viewtopic.php?p=526#526
Chromium OS - http://www.engadget.com/2012/06/20/chromium-os-gets-ported-to-raspberry-pi/
MEEGO MER + XBMC - http://wiki.meego.com/User:Vgrade#Raspberry_Pi
PiBOX - Chrosstool - http://www.graphics-muse.org/wiki/pmwiki.php/RaspberryPi/RaspberryPi
PiMaMe - http://blog.sheasilverman.com/pimame-raspberry-pi-os-download/
SlaXBMCRPi - SlackWare - http://slaxbmc.blogspot.co.uk/
PLAN 9 - IBM base - http://plan9.bell-labs.com/plan9/
PiBANG Linux - http://www.pibanglinux.org/
Pi Parted - http://sirlagz.net/?s=PiPArted+&searchsubmit=
COMMODORE Pi - C64 Emulated OS - https://github.com/xlar54/Commodore-Pi
Gentoo - http://www.raspberrypi.org/phpBB3/viewforum.php?f=54
Tiny Core Linux - http://www.tinycorelinux.net/4.x/armv6/piCore.img.gz
Adafruit - Occidentalis - http://learn.adafruit.com/adafruit-raspberry-pi-educational-linux-distro/occidentalis-v0-dot-1
i2pBerry - http://sourceforge.net/projects/i2pberry/
ha-pi - https://sourceforge.net/projects/ha-pi/
PwnPi - http://pwnpi.net/
RasPlex - turn ur TV in a SmartTV - http://rasplex.com/
Moebius - http://moebiuslinux.sourceforge.net/
Raspbian Server Edition - http://sirlagz.net/2013/03/04/raspbian-server-edition-version-2-3-1gb-image/
Red Sleeve Linux - http://www.redsleeve.org/
Raspberry Pi Thin Client - http://rpitc.blogspot.se/
IPFire - Open Source FireWall - http://www.ipfire.org/
BerryTerminal - http://www.berryterminal.com/doku.php
GeeXboX ARM - MediaCenter - http://www.geexbox.org/category/arm/
ANDROID TRANSPORTER - wireless remote stuff - http://www.geexbox.org/category/arm/
------------------------------------------------
---------------------------------------------------- MORE COMES SOON FOR SURE! ------------------------------------------------------
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BerryBoot v2.0 - bootloader / universal operating system installer like dualboot ,but you can have more!!!!!
---------------------------------------------------------------------------------------------
How to install the awesome BERRYBOOT (multiple boot) and different OS on one SD Card,online/offline?
-----------------------------------------------------------------------------------------------------------------------------------------------------
For people short on SD cards: Berryboot is a simple boot selection screen, allowing you to put multiple Linux distribution on a single SD card.
In addition it allows you to put the operating system files on an external USB hard drive instead of on the SD card itself.
------------
Download link Berryboot for the Raspberry Pi: BerryBoot.zip
-----------
To install: extract the contents of the .zip file to a normal (FAT formatted) SD card, and put it in your Raspberry Pi. This can be simply done under Windows without any special image writer software.
Once you start your Pi it will start an installer that reformats the SD card and downloads the operating systems files from the Internet.
----------
Other devices
In addition to running on the Raspberry Pi, Berryboot also supports Android tablets, TV sticks and boards that have an Allwinner A10 processor.
For more information see the BerryBoot A10 page
--------
Walkthrough:
------------------
If your Pi is connected to the Internet BerryBoot will try to detect your location based on your IP-address, and set the right timezone automatically. Verify that it is correct and press “ok"
Select where you want to store the operating system files, and press “format” You can install the operating system files on the SD card itself or an external USB stick/disk. Be aware that if you choose an external drive, the files of the operating system will be stored there, but you still need to keep the SD card in the Pi to boot from.
"WARNING: all existing files on the disk will be erased."
Select which operating system you want to install. You can add more later.
It will download the files from the Internet automatically.
In the Berryboot menu editor you can install more operating systems, rename them, delete them, etc. Press “exit” to exit the editor and start using the operating system you installed.
HDMI CEC support:
---------------------------
When attached to a HDMI TV, you can also use the arrows on your TV remote to select an operating system to boot, instead of using your keyboard or mouse.
Available options in menu editor:
----------------------------------------------
“Add OS” (or CTRL+A on keyboard, red button on TV remote)
Single click to download additional operating systems from the Internet.
Hold down your mouse button over the “Add OS” button and select “copy OS from USB stick”, to install an operating system saved on USB stick.
“Edit” (or ENTER on keyboard)
Change the name of the selected operating system.
You used to be able to change the memory split setting here as well, but for new installations (that have CMA enabled) this is no longer used.
“Clone”
Creates a copy of the selected operating system.
It is possible to create either a copy that includes the file system changes you made, or create a copy of the original operating system image as downloaded from the Internet.
“Backup”
Creates a backup of a single operating system or all of them to a USB stick, or SD card (requires USB SD card reader).
Backups of individual images can be restored by holding down the “add OS” button and selecting “copy OS from USB stick”
“Delete” (or DEL on keyboard)
Deletes the files of the selected operating system.
“Make default”
Makes the selected operating system the default. On boot, this operating system will be started automatically unless another is selected within a number of seconds.
“Exit” (or ESC on keyboard)
Exits the menu editor.
--------------------------------
Advanced options:
--------------------------
Click on the ”»” button to the right of the screen to see all options.
“Advanced configuration”
------------------------------------
Editor for configuration files such as cmdline.txt and config.txt
When using a Raspberry Pi you can specify kernel parameters and Berryboot parameters in cmdline.txt (use uEnv.txt if you have another device).
Special Berryboot parameters:
bootmenutimeout=<number of seconds> - number of seconds before default operating system is started. nobootmenutimeout - do not start the default operating system automatically.
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In config.txt advanced overscan, HDMI and overclocking settings can be specified. See the RPIconfig page on eLinux.org for details.
Note that overclocking is known to cause SD card filesystem corruption, so only use that when you are using an USB stick or drive as storage and know what you are doing.
-----------------------------------
“Console”
Activates a console on tty2
Press CTRL+ALT+F2 to access, username “root”, no password.
“Set password”
Password protects access to the menu editor, so that unauthorized users cannot delete or edit the operating systems.
“Repair filesystem”
Performs a file system check and repair. Attempts to repair file system corruption. Can perform a lot of writes to the SD card, so you might want to make a backup of important files first.
Alternative installation method using disk image:
---------------------------------------------------------------------
If you are experiencing problems unpacking the installation files to a FAT formatted SD card (the easiest and recommend installation method), you can alternatively use a tool like Win32diskimager or dd to write this disk image to the card.
The disk image is meant to install Berryboot on another device, but it includes the Raspberry Pi boot files as well.
-------------------------
-------------------------
MY SELFBUILDED ONE,COOLER AND HEATSENSOR FROM GEFORCE GRAPHIC´S,MANY OTHER THINGS TOO
-------------------------
More information
------------------------
For advanced users:
-----------------------------
Headless installation (install Berryboot without display attached, using VNC)
Adding your own custom operating systems to the menu
Berryboot source code on Github
Report bugs
----------------------------
Changelog: Berryboot Changelog
----------------------------
OFFICIAL SITE : http://www.berryterminal.com/doku.php/berryboot
----------------------------
I WISH MANY FUN BY TESTING AND DEVELOPING + HAVE A NICE DAY!!! GREEEEEETZ!!!!!! ​
HOW TO MAKE SD CARD PARTITIONS EASY AND SAFE
HOW TO MAKE SD CARD/USB STICK ABLE TO BOOT MY RASPI ???
SOME NICE WALLPAPER FOR DESKTOP!!!!
DOWNLOAD AT THE END OF THE THREAD
-------------------------------------------------------------------------------------------------
THATS ONLY 2 EXAMPLES FROM HOW I HAVE DONE IT WITH OPENELEC
ON LINUX MINT 32bit+1gb SD CARD
Windows 8.1 64bit and 1gb SD CARD
AND MINITOOL PARTITION WIZARD.
AND Win32DiskImager
---------------------------------
HOW TO MAKE SD CARD PARTITIONS:
Under Windows the following ingredients are required:
a properly formatted SD card
the distribution archive
a brain
---------
Formatting the SD card
A properly formatted SD card for OpenELEC requires to have two partition on it whereas one of them is formated with an ext4 filesystem. This requires a third party tool like the MiniTool® Partition Wizard. It happens that MiniTool is offering a Home Edition which is free for home use only.
MiniTool® Partition Wizard
The first step is deleting all partitions and then create the first one afterwards.
The original script is creating a FAT32 partition occupying 16 cylinders resulting in approx. 130 MB. So did I and named it “System”. In addition I assigned drive letter S: to it (the assigned drive letter will be used later).
On the left side of the Partition Wizard you can follow the actions that will be performed upon apply. Next the ext4 partition is created and named “Storage” consuming the remaining space on the card. You will receive a warning stating that Windows will only show the very first partition on a removable media. Acceptable in our case.
The new partition layout now should look similar to this:
-----------------------------------
At this point the modifications can be applied (via the button “Apply” in the upper left) and in a last step the first partition will be marked as “Active” (right-click over the partition; Modify -> Set Active).
Copying OpenELEC to the SD card
The distribution comes as compressed tar archive which needs to be extracted first (7zip will do this job). At the end you should have a folder OpenELEC-RPi.arm-3.2.3 containing the distribution. Assuming that you have assigned drive letter S: to the SD card the following sequence will copy the required files to the card:
------------------------------------------------
cd OpenELEC-RPi.arm-3.2.3
copy target\KERNEL S:\kernel.img
copy target\SYSTEM S:\
copy 3rdparty\bootloader\*.* S:\
copy openelec.ico S:\
copy README.md S:\
--------------------------------
Last but not least you need to create a file ‘cmdline.txt’ on the SD card with the following content:
boot=/dev/mmcblk0p1 disk=/dev/mmcblk0p2 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 ssh
-------------------------------
That’s it. Insert the SD card into your Raspi and power it on. The Raspberry will boot OpenELEC!!!!
-------------------------------
THE WINDOWS METHOD IS MUCH EASIER,THE ONLY THING YOU NEED IS A FRESH ---- FAT ----
FORMATTED SD CARD,A RASPBERRY OS AS IMAGE FILE,A PC + Win32diskImager.
----------------------------------------------------------------------
AFTER INSTALL,BLA;BLA FROM DISKIMAGER OPEN IT AND GO TO BROWSE,SEARCH YOUR IMG.
AND ENABLE IT BY OK,NOW PUT THE PATH TO SD CARD IN SECOND ROW AND PRESS OK,IT
MIGHT BE WARNING YOU THAT SOME CARDS ARE GOING TO HEAVEN BY DOING THIS,BUT
NO FEAR,I HAVE DONE IT MORE THAN 100 TIMES WITH ONE CARD AND NEVER HAD A PROBLEM!!!!
JUST PRESS OK AND WAIT TILL YOUR CARD IS READY -1-2 min.,THATS IT!!!!!!
-----------------------------------------------------------------------
HERE SOME TIPPS+LINKS TO VERY GOOD WINDOWS TOOLS TO CREATE BOOTABLE USB STICKS
SD CARDS FOR INSTALLING LINUX/WINDOWS/LIVE DISTRO"S!!!!!
----------------------
win32diskimager - http://sourceforge.net/projects/win32diskimager/
Fedora ARM Installer - https://fedoraproject.org/wiki/Raspberry_Pi
Universal USB Installer - http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/
USB Image Tool - http://www.alexpage.de/usb-image-tool/
Linux Live USB Creator - http://www.linuxliveusb.com/
UNetbootin - http://unetbootin.sourceforge.net/
USB Pendrive Linux - http://www.pendrivelinux.com/
-------------------------
MORE IS COMING HAVE A NICE DAY!!!!! :laugh​
too
too too too
Very nice write up man
I'd like to add http://rasplex.com. it's what I will be installing on mine once I get them.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Excellent list of resources I'll add to my index thread right away :good:.
very usefull,have look a long time for such stuff,thanx :good:
an ALL-IN-ONE Solution
here is the "Ultimate Raspbian" that also should be recognized and maybe linked in OP
http://www.raspberrypi.org/forum/viewtopic.php?f=41&t=58839
for retro gamer
here's something another, a retro gaming os with much emulators on board called retropie
http://blog.petrockblock.com/retropie/
to setup a xbox controller i found this guide very helpful:
http://forum.stmlabs.com/showthread.php?tid=8659
.... and I forgot: thanks for that useful thread:good::good:
I love this threat!
first post updated with some new distros and links for this,more comes soon.greeeetz

Turning note into a Linux laptop: a step by step guide

Turning note into a Linux laptop: a step by step guide
The main advantage of the method here is that you can run android app and linux program side by side. Moreover, S-pen can act as mouse
Device: p600
ROM: P600UEUBMK1
(Following method may be applicable if your device is rooted and has other selinux permissive ROM installed)
1 Root and flash selinux permissive kernel
a. for root method, see
http://forum.xda-developers.com/showthread.php?t=2490805
b. Flash selinux permissive kernel, for instructions, see
http://forum.xda-developers.com/showthread.php?t=2590311
Please read the instructions completely.
c. Install SElinuxModeChanger
Install SElinuxModeChanger from Google Play (app is free and without ads) and change selinux mode to permissive.
Reboot note, if SELINUX status is Permissive in the Setting--about device, you can move on to next step.
2 Install Linux distro using Linux Deploy
Install Linux Deploy from Google Play (app is free and without ads), Start Linux Deploy and push the Download Button, and then in the Deploy option, you have the following choices:
a. Distribution
I have tried Debian and Ubuntu, both have been successful installed.
b. Distribution suite
For Debian , choose Jessie.
For Ubuntu, choose Trusty.
c. Architeture
Choose armhf.
d. Mirror URL
For Debian, http://202.141.160.110/debian
202.141.160.110 is the IP address of debian.ustc.edu.cn (one of the Debian mirrors in China)
You can choose other mirrors from
https://www.debian.org/mirror/list
but remember to convert the web address into IP address
For Ubuntu, http://18.7.29.125/ubuntu-ports/
18.7.29.125 is the IP address of mirrors.mit.edu
The above mirrors are chosen because they are stable and fast for users in China.
e. Installation type
File(default option)
f. Installation path
For Debian, /storage/emulated/0/debian.img
For Ubuntu, /storage/emulated/0/ubuntu.img
In fact , You can choose whatever file name you like. I chose the above names, because I actually installed both Debian and Ubuntu on my device.
g. Image size
Automatic calculation (default option)
h. File system
Auto (default option)
i. User name
Android (default option)
j. DNS server
Automatic detection (default option)
k. Localization
en_US.UTF-8 (default option)
l. Desktop environment
Xfce
m. Select components
Just check all components
After the Deploy options have been set, choose Install under Action options.
The installation time taken depends on the mirror chosen and how stable the internet connection is.
When you see “end: Install”
Push the Stop Button, and then Start Button.
If no information about failure of starting SSH and VNC services are shown, then the installation is successful.
3 Configure startup environment using Linux Deploy
Push the Download Button, ensure that both SSH and GUI are checked under STARTUP option.
for Graphic subsystem, choose VNC
for GUI setting, Display is set to 0, Depth 24, DPI 270, Width 2560, Height 1600.
check Custom mounts
For Mount points, add /mnt/extSdCard/ so that you can access external sdcard under linux environment.
or add /mnt/0/ to access internal sdcard.
Back to the main page, push Stop and then Start Button to see if external sdcard and internal sdcard can be mounted.
4 Set up ssh and vnc client
a. Install JuiceSSH from Google Play (app is free and without ads),
Launch JuiceSSH, under Connections, choose New Connection,
In basic settings, Type is set to SSH, Address is set to 127.0.0.1 (IP of local host), and Identity is android.
Back to the main page, connect to 127.0.0.1, when prompting for password, enter changeme. You are now login into Debian or Ubuntu.
b. Install bVNC from Google Play (there are free and pro versions, free version is fine)
In the Connect Type, choose Basic VNC.
In the VNC Connections Settings, Address is set to 127.0.0.1, port 5900, and password changeme.
Push the connect button, You are now login into Debian or Ubuntu desktop.
Can you please upload a video of Linux running on your note, if you can please. Never thought Linux would run on note. It would really transform this tablet into a powerful productivity tool.
excalibar001 said:
Can you please upload a video of Linux running on your note, if you can please. Never thought Linux would run on note. It would really transform this tablet into a powerful productivity tool.
Click to expand...
Click to collapse
I have no experience of making and uploading video .
some screenshots are attached
Does this guide is for P600 only ? :silly:
It's impractical at best. I mean I appreciate the time it took for you to write this, but linux through chroot is not very useful, it cannot be. It's like trying to run linux on a p3 machine, which is painful to see especially since our machines have the raw power of a fast core 2 duo (if cross platform benchs are to be believed).
What we need is a custom bootloader which would enable dual boot of Linux and android and then a proper linux kernel including driver support for all our tablets main components. Native linux. I've always dreamt of an ultra portable do-it-all machine and my note is almost that, with *almost* being the imperative word.
Note 2012 has it, raspberry f....ING pi has it even though it includes 1/10th of the firepower of our note, we don't, and I miss it oh so much for certain apps. The pen via hovering can act like a proper ultra portable mouse (tapping -> left click, pressing the key + tapping -> right click) + a floating keyboard (like Sammy 's official one) and we're golden. Alas without a proper kernel and a proper bootloader we're nothing.
Appreciate the effort, I really do, but linux deploy is mostly a toy :/
I'll await for the day that native linux comes.
does it work with framebuffer option (instead of vnc)?
Stevethegreat said:
It's impractical at best. I mean I appreciate the time it took for you to write this, but linux through chroot is not very useful, it cannot be. It's like trying to run linux on a p3 machine, which is painful to see especially since our machines have the raw power of a fast core 2 duo (if cross platform benchs are to be believed).
What we need is a custom bootloader which would enable dual boot of Linux and android and then a proper linux kernel including driver support for all our tablets main components. Native linux. I've always dreamt of an ultra portable do-it-all machine and my note is almost that, with *almost* being the imperative word.
Note 2012 has it, raspberry f....ING pi has it even though it includes 1/10th of the firepower of our note, we don't, and I miss it oh so much for certain apps. The pen via hovering can act like a proper ultra portable mouse (tapping -> left click, pressing the key + tapping -> right click) + a floating keyboard (like Sammy 's official one) and we're golden. Alas without a proper kernel and a proper bootloader we're nothing.
Appreciate the effort, I really do, but linux deploy is mostly a toy :/
I'll await for the day that native linux comes.
Click to expand...
Click to collapse
Linux through chroot is sufficient for the following purposes:
1 have a taste of different linux distro
2 learning programming in R, python, and octave.
3 editing and compiling no so large latex files
4 learning and practicing the universal editor emacs ( I use it with R,python and octave) if equipped with a physical keyboard.
In sum, note 10.1 with linux through ssh and vnc is perfect for educational purpose.
For developer, at least, they can learn how their linux program looks like in a 10 inch screen with 2560*1600 resolution.
ziotom2 said:
does it work with framebuffer option (instead of vnc)?
Click to expand...
Click to collapse
I have the same question for op or anyone in the know. Can you start gui without vnc?
I have tried framebuffer on several devices, including note , without success.
Are there any prerequisite to use it?
Thank you for the guide. I am stuck in point 4th setup ssh and vnc when I try to connect I think it doesnt rcognize address 127.0.0.1 as I recive this msj: failled to connect to /127.0.0.1 port 22 connect failed ECONREFUSED. Any idea why?
Thank you
What I can do on Linux?
Sent from my Galaxy Note 2
Why install Linux?
Stevethegreat said:
It's impractical at best. I mean I appreciate the time it took for you to write this, but linux through chroot is not very useful, it cannot be. It's like trying to run linux on a p3 machine, which is painful to see especially since our machines have the raw power of a fast core 2 duo (if cross platform benchs are to be believed).
Click to expand...
Click to collapse
Actually there are several Linux applications I would like to run, which require very little processing power and I believe would run just fine.
WikidPad and FreeMind are the obvious ones for me; but I also have a proprietary simulation package that would probably benefit from running slower
Their value to me would because they are always available so using them would lack the friction I currently endure- I have to be at home to use them.

Linux on the Iconia Tab a500, for 2018

I have new instructions here that are much better, but require some amount of software compiling (mainly with the kernel): https://forum.xda-developers.com/iconia-a500/linux-acer-iconia-tab-a500-2020-edition-t4136023
I'm a latecomer to the scene of seeing GNU/Linux userland distros run on this tablet, as I only acquired mine from a friend since last year, and couldn't use it until I replaced the ac adapter and battery. I was this lucky as Android devices capable of running GNU/Linux distros natively are hard to come by, and moreso for getting it for free. But first, the tablet needed to be fixed up by software:
I upgraded the stock Android OS from 3.?.? to 4.0.3 by downloading Acer-provided updates to a microSD card.
Now I could retrieve the tablet's serial number and generate the SBK from it in order to flash Skrillax_CZ's custom bootloader with nvflash.
I flashed CWM 6.0.4.5 custom recovery first (to AKB partition), then OmniROM based on Android 4.4.4 (to LNX partition). I flashed an Open GApps package at first, but I had to remove it as those apps try to utilize the NEON extensions that this tablet's CPU lacks, causing them to crash. (4.4 is the minimum version the Open GApps supports anyways) Instead, I used F-Droid for an app store replacement, which sufficed for most of my needs.
Then I got to flashing a kernel that enables booting native Linux distros (to SOS partition). While I tried both sp3dev's 2.6.38 kernel and rogro82's 3.1.10 kernel (a modded version that loads the distro from the 2nd partition of a microSD card), I stuck with the 3.1.10 kernel, as it included the ASIX AX8817X USB 2.0 Ethernet driver which allows me an alternate method of internet connection in case I couldn't use wi-fi (both boot images are attached for preservation and convenience, renamed).
Now I was ready to experience running Linux distros natively on a mobile device for the first time. :fingers-crossed: From this point on, I would be using rootfs images to reach this dream of mine. With the new instructions posted above, I may have finally realized this dream! While I have more stuff working smoothly (Wi-Fi and Bluetooth, 2D software acceleration), other minor things are still not, including the camera and 3D acceleration (due to such support not existing in mainline kernel).
Some notes I made for this time period:
I have found out that glibc versions 2.24 and later have removed support for Linux kernel versions < 3.2, which limits the choice of distros I can select from without additional work.
The minimum Linux kernel version that this version of the GNU C Library can be used with is 3.2, except on i[4567]86 and x86_64, where Linux kernel version 2.6.32 or later suffices (on architectures that already required kernel versions more recent than 3.2, those requirements remain unchanged). Linux 3.2 or later kernel headers are required on all architectures.
Click to expand...
Click to collapse
The workarounds to this are to use an alternate C library, or use older versions of glibc (Version 2.23 is used in Ubuntu 16.04, but it is compiled to only run with Linux 3.2 or later, so it must be recompiled by lowering the minimum kernel version to 2.6.32).
The file bcm4329-fullmac-4.bin can be found in packages of linux-firmware, but bcm4329-fullmac-4.txt needs to be obtained from the stock Android OSes, as the file "/system/etc/wifi/bcmdhd.cal" (original file attached for convenience, renamed).
Linux kernel version 3.1.10 is the latest one provided by NVIDIA, and new versions are unlikely to be ported to this tablet's CPU, according to https://developer.nvidia.com/linux-tegra-rel-16.
Other than the above three points, Linux distros will work almost flawlessly, but if the screen is turned back on, an external keyboard is needed to switch to one of six virtual terminals by using Ctrl+Alt+[1-6], and then switching back to Ctrl+Alt+7, where 7 may be replaced if the GUI is running in another virtual terminal location. This process is not needed if the NVIDIA proprietary drivers are being used, which can be found on this page: https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-tegra/16.3-0ubuntu2/+build/4804631 (Beware that X11 ABI versions > 14 are not supported, so downgrade the xorg version somehow to the 1.14.x series to use this driver).
[Version 16.3] is the final release supporting Ventana. T20 support will not be included in future releases.
Click to expand...
Click to collapse
The internal storage is also detected by the kernel, but its contents cannot be normally accessed, as it has a special partitioning scheme that cannot be recognized. It is possible to format it, and partition it to hold accessible data, but I recommend not doing any partitioning for it, as it may require a longer restoration process that will not be explained here for now. However, using TestDisk to search for partitions using the GPT partitioning scheme allows four of them to be accessible. I recommend only copying data from those partitions; writing the detected partitioning scheme is risky for now.
Putting the tablet to sleep by use of pm-utils works, and the tablet will even power back up after the power button is pressed, but it may cause the BCM4329 SDIO card to stop working until the next reboot.
Any programs that utilize OpenGL during their operations are very likely to have poor performance, and will remain so, as this tablet model's GPU only supports OpenGL ES and EGL :crying: , unless those programs are altered by source code to include support one of these two APIs. Additionally, some colors may appear to be off during any OpenGL rendering (e.g. orange is rendered blue) However, the proprietary drivers may help with faster OpenGL ES and EGL rendering, but still, most programs are unable to utilize them.
I guess I can be blamed for sticking with too old hardware; people are moving onto newer hardware so quickly! However, there's still hope for having some sort of Linux tablet, but the road to getting there is not easy.
NEW: I have successfully cross-compiled this Linux 3.17.0-rc7 kernel, using the picasso config from rogro82's kernel source. When compiling this kernel, do not switch to any other branches, or prompts like this will appear upon invoking make:
Code:
Patch physical to virtual translations at runtime (ARM_PATCH_PHYS_VIRT) [N/y/?] n
Physical address of main memory (PHYS_OFFSET) [] (NEW)
I also created a boot image for it, but after flashing it, attempting to boot results in the bootloader being stuck at the loading screen, without hope for anymore activity unless powered off by force. Even inserting an initrd will not change anything but the size of the boot image (Max size for the SOS partition is ~5MB). :crying: This also seems to have happened a version of the 2.6.38 kernel from sp3dev that I have self-compiled, but that one was without an initrd. Either I'm not using the correct toolchain (I'm using the ones provided from the Ubuntu repositories), or non-manufacturer-provided kernels don't have the special code to support this tablet model. However, I really want to get this kernel to boot successfully, so that newer distro versions can be used (my results will appear in another post).
Supported Distros
Almost any distro will work out-of-the-box (OOTB), but some require software-level modifications that can only be done on a real armv7-based device or emulation, so here is a list of distros whose latest stable versions have an arm build, can successfully boot up, use glibc <= 2.23, and their image locations (all of them can at least boot to a terminal login screen, if a graphical desktop environment is not preinstalled, but this will require use of an external USB keyboard):
Devuan 1 Jessie (Mirrors for this distro are located in the directory "devuan_jessie/embedded/")
Slackware ARM 14.2 | http://ftp.arm.slackware.com/slackwarearm/slackwarearm-devtools/minirootfs/roots/
CentOS 7 | http://mirror.centos.org/altarch/7/isos/armhfp/
openSUSE Leap 42.3 | http://download.opensuse.org/ports/armv7hl/distribution/leap/42.3/appliances/
Unfortunately, for some reason, the BCM4329 wi-fi works OOTB only with older versions of some distros, including these:
Devuan 1 Jessie (already listed above)
Debian 8 Jessie and older (supported until May 2020)
Ubuntu 14.04 Trusty Tahr and older (supported until April 2019)
On newer versions of these distros, if I was able to boot them successfully, they will work, but when running
Code:
iwconfig wlan0 txpower auto
it results in input/output errors that are meaningless, and the kernel messages do not really help that much, even when using the supplied nvram file (do I need to get a different one, or support had been dropped entirely for this card?) For these cases, USB ethernet adapters are the only way to get an internet connection to this tablet model. I have never been able to get Bluetooth to work, unless I missed some other task that I have not yet heard of.
NOTE: To remove the root password, use this command on a Linux/BSD/other Unix OS:
Code:
sed -i 's/root:x:/root::/' /etc/passwd
"/etc/passwd" can be replaced with another location if needed. "/etc/fstab" may also need to edited to reflect the partition layout of the microSD card that a selected distro is installed to.
OOTB distro support for this tablet model is very limited at this time; support for it seems to be being dropped implicitly , unless I can compile and successfully get a newer kernel version to boot up. DistroWatch.com lists many more, but older versions of most distros will most likely have to be used. It's better to use the versions that are still supported, for that they will still receive software and security updates occasionally.
booted up slackware rootfs using thor2002ro installer successfully
Potential new kernel source
See the bottom of the first post for more information about this.
I'm working on trying to get us a newer kernel version than the NVIDIA-provided 3.1.10 one, located at https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git/. This one is at 3.17.0-rc7. It's better in that comes straight from kernel.org, the official source of Linux kernel releases. However, its last update was from 09/28/2014, so while it is considerably newer than manufacturer-provided sources, it's not as new as the 4.x series (I'm not sure if I'm even willing to try compiling this series due to the age of this tablet model's hardware), but at least this will allow the tablet to successfully boot up newer distro versions. The issues with the BCM4239 card are likely to carry over here, but I can compile more drivers, either built-in to the image, or as modules that need to be added to a rootfs. Doing this will open up more alternate methods of getting an internet connection, such as by USB wi-fi/cellular adapters, or by USB RNDIS tethering. For reference, here are the current two 3.x release series, both of which are receiving updates as long-term support series:
3.16.x, supported until April 2020.
3.2.x, supported until May 2018.
That means in about two more years, this tablet model will effectively reach its end-of-life.
Do not flash the boot image attached here; it does not work yet. All of the attachments are provided for analysis, as they need more work before becoming usable. I try to learn most things on my own, but some things are not obvious to me as to what I should, so I need all the help I can get so that we can load new distro versions and give life to the remaining of these tablets for a few more years. At most, CentOS 7 is supported until June 2024 (enterprise-oriented distros tend to be supported for unusually longer amounts of time), if older kernels versions must be used or I fail to get this new kernel working at all, so this will be our only supported option if we can't get a new solution by the 1st half of 2020.
i found a thread with step how to install wifi drivers on deb-based distros
https://forum.xda-developers.com/showthread.php?t=1782549
we need packages: broadcom-sta-common broadcom-sta-source firmware-b43-installer firmware-b43legacy-installer b43-fwcutter
(i never tried it, idk if it even works)
still pursuing this project?
not sure if you are still pursuing this but if you are i would like to help
Aaron
adconway said:
not sure if you are still pursuing this but if you are i would like to help
Aaron
Click to expand...
Click to collapse
Yes, I'm still looking for people to help me with this; it will happen for as long as I own this tablet model; I haven't made much progress as I haven't found enough people to help me. It's good that you would like to help me.
Hi!
Sorry for the noob question folks...
I really would like to try some linux distros on this tablet, I have the Skrillax_CZ's custom bootloader installed, also the latest OmniROM but how can I install / boot a linux distro?
Thank you!
Ladislav
The kernel that I used expects the root file system to be on
Code:
/dev/mmcblk1p2
. Images for the Raspberry Pi are usually formatted with two partitions: one containing the boot files; the other containing the actual filesystem. The latter is what the kernel expects to read.
I've been hoping for a thread like this since I wasn't getting anywhere with my own old A500. With Google support flaky as ever on my tablet, I've been itching to remove it entirely for a Linux distro. When I get time, I would love to tinker with the materials you've shared, Worldblender.
Do someone have headers for kernel 3.8.13.20-digetx-thor-01232-gfe12f92?
2019 Status
Finally, I've decided to try again to get something a little more recent onto here. Ubuntu 16.04 and one flavor, Ubuntu MATE 15.04, can currently be run. Ubuntu Mate is an Ubuntu flavor shipping with the MATE desktop environment, and the only flavor to produce images for the Raspberry Pi, hence their partition layout is compatible with the 3.1.10 kernel image.
Here's what I went through today (all versions require editing /etc/fstab to disable mounting of the first partition for them to complete booting. To get Wi-Fi working, use the text file from the very first post of this topic, and place it in the same location (/lib/firmware/brcm); no need to copy the BIN file as it will already be present on the images):
Ubuntu MATE:
15.04: Only version that successfully boots out-of-the-box. Unsupported version. Use this image for now, as all others listed here don't work out-of-the-box.
15.10: Crashes with a kernel panic. Unsupported version.
16.04: Crashes with a kernel panic. Requires replacing the libc6 package and everything that directly depends on it with the ones from 15.10. Supported until April 2021. Glibc version 2.23 is in 16.04, while 2.21 is in 15.04 and 15.10.
Ubuntu:
16.04: Preinstalled images for Raspberry Pi 2/3 available at http://cdimage.ubuntu.com/releases/16.04/release/. Username and password is "ubuntu", and will prompt to change password upon logging in. Requires replacing the libc6 package and everything that directly depends on it with the ones from 15.10. Glibc version 2.23 is in 16.04, while 2.21 is in 15.04 and 15.10.
For Ubuntu 16.04, the following packages must be replaced prior to first boot with a chroot running on either an ARM virtual machine (the instructions at https://wiki.debian.org/QemuUserEmulation will also work), or another ARM computer (Android smartphones and tablets can be used here, as long as they have a microSD slot or support USB-OTG, where a USB SD card reader has to be used instead):
libc-bin
libc6
locales
perl
perl-base
perl-modules
After that, I recommend pinning/locking the packages "libc6" and "perl-base" to prevent the OS from becoming unbootable after an upgrade.
For all unsupported versions of Ubuntu, change the package repository URLs to point to http://old-releases.ubuntu.com/ubuntu/ so that more packages can be installed.
To download any of the Ubuntu MATE image versions listed above, use the torrents attached below (should still work at the time of writing this post). The Internet Archive has saved copies of these torrents, as they can no longer be accessed from the current Ubuntu MATE download page. They can be found at https://web.archive.org/web/*/https://ubuntu-mate.org/raspberry-pi/*
This is the best that I can offer; either use Ubuntu 15.04 right away (and access some newer program versions, but have no access to the latest security updates), or tweak Ubuntu 16.04 post-install with the package names listed above (and access even newer program versions plus security updates until April 2021). It may be the last time we can get newer software on an aging tablet from 2011 [!], unless new ones are compiled from source.
digetx repository
TeTriNol said:
Do someone have headers for kernel 3.8.13.20-digetx-thor-01232-gfe12f92?
Click to expand...
Click to collapse
digetx has a repository on bitbucket, might be there
Upgrade from 14.04 lubuntu by digetx
Thanks for posting the upgrade info, trying for a while but never found out the fix, until now.
After installing and upgrading 14.04 install as originally described on tegraowners I locked all the packages you mentioned eg:
libc-bin
libc6
locales
perl
perl-base
perl-modules
Then did a distrbution upgrade and presto, v16.04. Now I can install the latest versions of some programs I use.
Many thanks for sharing and kudos for finding issue. One day I hope to get back into linux seriously, changed a lot since the 14 floppy disk distributions. :good:
18.04 upgrade works so far
After the v16.04 upgrade I thought "go for broke" and try another dist upgrade and after a few warnings it worked.
Havent tried everything yet but Chromium works to get this typed, and system profiler but I can't upload image here.
Kicad 5 installed but eeschema crashed in 16.04 but it runs on 18.04 albeit a little slower than an i5
https://drive.google.com/file/d/1X3yEyWYsCWyF6RXxgd4GpBkyIHBmIPlw/view?usp=sharing
beaka said:
After the v16.04 upgrade I thought "go for broke" and try another dist upgrade and after a few warnings it worked.
Havent tried everything yet but Chromium works to get this typed, and system profiler but I can't upload image here.
Kicad 5 installed but eeschema crashed in 16.04 but it runs on 18.04 albeit a little slower than an i5
Click to expand...
Click to collapse
Hi beaka, can you share rootfs and install files from tegraowners lubuntu 14.04 ? I'm looking for it but tegraowners is gone now.
rootfs and installer from tegraowners
pheex79 said:
Hi beaka, can you share rootfs and install files from tegraowners lubuntu 14.04 ? I'm looking for it but tegraowners is gone now.
Click to expand...
Click to collapse
Hi pheex,
Here are links to the files I used to install lubuntu 14.04 then do the distupgrades to 18.04
installer:
https://drive.google.com/file/d/13Gg7Xhyx_C1Ra7_rkD4G_3yoPbf-qvC5/view?usp=sharing
rootfs:
https://drive.google.com/file/d/14YZ-_o2c-3afqD0PbppWod12p3xB5fs2/view?usp=sharing
I have skrilax v8 loader and install to sd card.
Hope that helps. :good:
thanks a lot !
Now wifi work, i can't figure it out with ubuntu debootstrap root fs
beaka said:
Hi pheex,
Here are links to the files I used to install lubuntu 14.04 then do the distupgrades to 18.04
I have skrilax v8 loader and install to sd card.
Hope that helps. :good:
Click to expand...
Click to collapse
Dist upgrade don't work for me, something broke dependencies, maybe the packages i freeze (libc...)
Do you remember how do you proceed ?
pheex79 said:
Dist upgrade don't work for me, something broke dependencies, maybe the packages i freeze (libc...)
Do you remember how do you proceed ?
Click to expand...
Click to collapse
I did a new install to card.
apt update
apt upgrade
reboot
open synaptic package manager and lock the versions of:
libc-bin
libc6
locales
perl
perl-base
perl-modules​by selecting then Package/Lock version from menu
reboot and make sure it works
open software updater and update (use gui version as apt doesnt seem to lock version)
reboot and make sure it works
open software updater and do dist upgrade to 16.04 (go to bed as slow dl on 3g)
reboot to see if it worked
then I did a dd of the sd as the upgrade takes hours over 3g
software updater to upgrade 16.04 security
after that I again used software updater to go to 18.04
dd sd card so never have to do it again
using apt from 18.04 doesnt seem to break anything so far that I use.
brief summary but hope it helps. once you get it to 16.04 it seems a bit more stable and on 18.04 it works and is a bit more responsive but I havent tried every feature, just web(chromium and ff v55, had to find old pre-neon vers) , samba, kicad, freerdp (works well) and I can even print to epson wifi x420 (just found it on network, almost thought I was in windows )
good luck let us know how you go

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