I have a nook color with dual boot from sd card. The sd card having an android 3.0 version.
After I got the 1.4.1 update, I noticed that I was able to access the sd card( the boot partition alone) from the stock OS boot of nook.
But now, dont know how, I dont see that anymore.
Was this a flawed update that was fixed or am I missing something.
Do help please.
I could really use the advantage of using the bootable sd card as a regular storage card when using the stock OS of nook. I prefer reading on the stock OS of nook.
Not sure why you're not seeing the SD card anymore, does it still boot?
SD card installs create multiple partitions on the SD card and the Nook will only be able to access the first one (boot). It should be accessible with any version of the Nook default OS.
You should have a media partition with a decent amount of room (1-5gb depending on NC version). That would give you more room than the 100-or-so mb on the boot partition.
Just found out that you can point the emmc install to see the "sdcard" partition of the sd card using the following info:
racks11479 said:
use root explorer and edit vold.fstab to "4" instead of "auto" for sdcard mount
Click to expand...
Click to collapse
Yes, I can boot from it. Every time I plug in the SD card, the notification already says that it is safe to remove the SD card. In the device Info part of the setting, the "Unmount SD card" is already greyed, though it does say that the SD card is found.
It is however useful for me to know that the boot partition should always be accessible.
I did remove the SD card a couple of times without unmounting it first, could this possibly have corrupted the card?
srn_28 said:
Yes, I can boot from it. Every time I plug in the SD card, the notification already says that it is safe to remove the SD card. In the device Info part of the setting, the "Unmount SD card" is already greyed, though it does say that the SD card is found.
It is however useful for me to know that the boot partition should always be accessible.
I did remove the SD card a couple of times without unmounting it first, could this possibly have corrupted the card?
Click to expand...
Click to collapse
Try to boot the uSD card (the one with Android 3.0 on it) and see what happens.
If it can, then it's good, if not, you can say it's corrupted.
Yes, I can boot from it. So I assume the card is OK
I plugged in other uSD cards and they get recognized fine. So I assume the Nook stock OS device recognition is OK.
I should probably recreate the boot partition as a last ditch effort
I had the same problem at first, but now I have mounted the correct sdcard partition that I wanted to mount.
I couldn't get it to work with editing the vold.fstab file at first. Then at some point after I manually mounted the correct partition through adb shell and edited the vold.fstab it now works.
Related
Hey everyone,
Today I mistakingly tried to update a Froyo ROM with an Eclair, and it messed up my phone. So I flashed the default Bell ROM and went to install the Eclair, only this time I kept getting an error that /sdcard/andboot/androidinstall.tar can't be read.
I've checked over and over and: 1) the folder location is right (in the root of the SD Card, all lower case), 2) the .tar file is not corrupt, and 3) the SD Card is formated in FAT32.
I have no idea what is going on, and I'm stuck with the default Windows Mobile 6.1 now.
Any help would really be appreciated. Thanks
same here
I'm actually having the same thing. Clean FAT32 card. 1 directory 'andboot' all lowercase, 1 file in that dir 'androidinstall.tar' all lowercase.
I see android detecting the insert of the SD card, but apparently it wont read it...
solved
After reformatting [and repartitioning] the sd card, what worked for me in the end, was reformatting it [yes, again] to fat32, making the directory, putting in the file, and then resetting the phone. My guess: even though it detected the insert of an sd card, it did not really mount the filesystem until after the reboot.
Much help would be appreciated. Total new experience for me.
I have cm7 stable on sd of my nook color. I have everything up and running great. trying to overclock and when I take my sd card out of nook and put into laptop, it asks me to format it. It is not allowing me to copy the kernal to my sd card. Is there another way of doing this?
While inserted in my laptop, I look at the properties of the sd card and it is showing to be in raw format.
any help would be greatly appreciated.
Are you unmounting the SD card before you eject it? Also, are you sure the FS on your SD is FAT32?
When I originally formatted the card before I burned the installer and the cm file on the card it was formatted to a fat16.
I have not unmounted the card prior to ejecting. I will give that a try.
okay I unmounted before ejecting... put into laptop and the laptop is still wanting to format the card.
when I look at the properties it says file system is raw, and storage space is 0mb.
Maybe your card reader couldn't read microSDHC card?
With CM7 running off a uSD which I am doing as well, some built in laptop readers will not read the uSD but it may be read with a USB reader. But, it will typically only read the 1st partition which is the Boot partition (unless you use a program to set the 4th partition as primary and active).
To access the 4th partition for storage, you can try to connect the Nook by USB cable to your computer and enable USB storage mode. That should connect you to the 4th partition and your internal mmc storage partition too.
If not, download and use the following app:
http://forum.xda-developers.com/showthread.php?t=952456
The app is a little deceiving, you have to scroll in the app to see the "Confirm" button when you are mounting, and unmounting.
Thank you!!! I'm going to try that tomorrow.
If you still have stock on eMMC, boot with the card out, then insert it before the stock OS fully loads (like on "n" or "Nook Color" splash screens). The NC will mount the boot partition as storage; there should be an SD-icon notification in the lower left, and if you tap it, it should say "SD card inserted." You can then connect via USB, and hopefully your card and PC will kiss and make up.
ETA: I've had no luck inserting the card after the OS is fully loaded--it just reads "SD safe to remove."
That worked!!! Thank you very much!!!
Would appreciate some guidance, if anyone can help...
In December we got two new Nook Color Devices, one had 1.2 and the other 1.3. Had one 8gb micro sd card, and without understanding much about it, I followed verygreen's instuctions to create a card for dual booting. The 1.3 machine was used for installing cm7 (7.10) and the latest gapps file. But the card was then removed from that unit and inserted into the other Nook Color which had 1.2 in its firmware. I now think this was improper but am unsure what the repercussions were.
The system was used succesfully for several weeks. Occasionally the Nook side was booted from menu. Then suddenly after a cold boot, CM7 started but the virtual sd card was not recognized. Removed the card from the unit and investigated using Windows XP and Minitool Partition Wizard and found the "CM7 SDCARD" partition was corrupted. I reformatted that partition in Minitool, and then used the card for about another week in the 1.2 NC. At that time multiple partitions on the card suddenly became corrupted and fearing the sd card itself was defective I ordered some higher quality sd cards (now have 4 8gb sandisk class 4 cards to play with). Meanwhile the 1.2 NC accidentally booted into the Nook side with wifi enabled when it was charging and updated itself to 1.4.1. Before receiving the new sd cards, I reformatted the possibly defective sd card and recreated dual boot system using Verygreen's instructions (in the 1.3 unit but transferred into the 1.2 unit after creation). I was able to restore some of the apps using Titanium (but only because I had copied some of my original backups to my pc)
The unit with 1.3 on it had not been used much with wifi, and it still had/has 1.3 on it. One of the new cards is now in that NC (created as before with the Verygreen instructions).
I'm in a quandary what to do with the other unit.
Could using the 1.3-created sd dual boot card in the 1.2 Nook have caused partitions to become corrupted?
Where are applications going? Doesn't look like they're in the large sd card partition. I didn't think I had that much on there, (just some free apps from google and amazon) but I might I have run out of space? I never elected "move to sd card" or "clear cache" for any apps and don't know if that is a requirement when you use dual booting.
I haven't found instructions for what to do to create a dual boot card for 1.4.1. My original 8 gb card is in the unit, but I'd like to create a new boot card using the higher quality medium. Just want to understand what's happening. Is use of a 1.3-based card bound to lead to more corrupted partitions? Any suggestions on how to create a reliable dual boot card for this unit?
Sherip said:
Would appreciate some guidance, if anyone can help...
--- SNIP ----
I'm in a quandary what to do with the other unit.
Could using the 1.3-created sd dual boot card in the 1.2 Nook have caused partitions to become corrupted?
Where are applications going? Doesn't look like they're in the large sd card partition. I didn't think I had that much on there, (just some free apps from google and amazon) but I might I have run out of space? I never elected "move to sd card" or "clear cache" for any apps and don't know if that is a requirement when you use dual booting.
I haven't found instructions for what to do to create a dual boot card for 1.4.1. My original 8 gb card is in the unit, but I'd like to create a new boot card using the higher quality medium. Just want to understand what's happening. Is use of a 1.3-based card bound to lead to more corrupted partitions? Any suggestions on how to create a reliable dual boot card for this unit?
Click to expand...
Click to collapse
Can't tell you what issues you may be having with the sd card, but verygreen's "dual boot" (it's not really dual boot, but that's another story) method is independent of the stock rom (1.2, 1.3, 1.4, whatever). When you boot to the sd card, everything needed is on the card. When you boot to the Nook, either by using the sd card menu or removing the card, you get whatever stock ROM is currently installed in the emmc. If you properly created the sd card, you can insert it in any NC and use it.
I read through all and by the end, I'm lost
Anyway, if you are dealing with verygreen's uSD cards, you should be all set and not to worry anything on the eMMC. It's independent.
As why those partitions corrupted, I don't know as I never hit that problem. Just curious, why do you say it corrupts?
votinh said:
I read through all and by the end, I'm lost
Click to expand...
Click to collapse
Oh well, if no one else has had the issue of sd card corruption hopefully its not a side effect of using verygreen's image together with cm7 7.1.0, google apps and user apps.
Anyway, if you are dealing with verygreen's uSD cards, you should be all set and not to worry anything on the eMMC. It's independent.
As why those partitions corrupted, I don't know as I never hit that problem. Just curious, why do you say it corrupts?
Click to expand...
Click to collapse
The behavior was a little different each time. Has happened 3 times now.
Once it totally locked up. Powered off and back on. Got my home screen with icons but in the notification area an image of the sd card persisted for maybe 5 minutes while the unit was otherwise locked up. Finally the sd card image cleared, but es file explorer empty sdcard. When tested on the PC, that partition's data was corrupted. Recovery (using pc software) retrieved a bunch of files but without their proper names. That time my apps were not destroyed. I didn't have to redo verygreen's procedure, just reformatted CM7 SDCARD partition.
Another time I had powered off. Restarted and it booted in Nook instead of CM7. Removed the card and tested on the PC and both the boot and CM7 SDCARD partitions were unreadable. Didn't attempt any recovery. Wiped out and reformatted the card, then redid the verygreen procedure on it.
The third time (last night ) was more similar to the first time. I got some forced closes and couldn't get back the status bar. Rebooted. Got the sdcard icon showing for about 5 minutes. When it cleared, my files were inaccessible. Removed the card and tested on the PC. CM7 SCDARD partition content was corrupted.
The (bad?) sd card didn't give any errors when tested prior to the break downs. Its labeled as a sandisk 8gb class 2. Was a gift.
I'm back up and running after redoing the verygreen procedure using one of the new sandisk 8gb class 4 cards. This time I actually used my unit instead of another to do the unpacking/recovery loading of cm7 and google apps. I've never applied any of the nightlies. Maybe I should look into that. Also have never deliberately done any other procedures, such as overclock it.
Praying the corruption issue doesn't hit me again. I guess my NC's internal flash drive could possibly be defective. If so, at least its still under warranty.
So about a week ago I downloaded new version of icecream tosti's ICS rom (v0.6) and booted into CWM to mount my sd card and move the zip file over. I noticed that it was taking longer time to move the file than it usually does but I let the process finish. I unmounted the card and went to install the zip from sd card but couldn't find it. I tried to move the file again and again but couldn't get it to copy the file onto the sd card. I tried moving files from the sd card onto the computer but that was not possible either. It wouldn't show me errors and complete the moving process but it actually didn't move anything. I thought there was something wrong with the sd card so I tried formatting it... no success!
I have used easues partition manager, mini tool partition manager, hp sd card utility, panasoic sd card formatter, tried formatting it through windows native options, used disk management, even tried formatting it through CWM but i kept on getting the same error, can't format. I was placing the micro sd card in a usb card reader and sd card reader in order to format it through computer. I have also tried using different computers but that didn't solve the issue. The problem is that every time I try to install a rom it reverts back to an older revision of the rom with old settings that I set before. It seems to me some how the sd card is locked in a previous state and it is write protected and won't let me format it.
Does anyone have any ideas on how I can solve my problem or does this mean the sd card is gone and I have to buy a new one?
I have exactly the same problem after using NexusHD2-ICS-4.0.3-CM9 V1.3. It seems this sd card was frozen, nothing on it can be changed. If I copy a file to it on computer, it shows copy successful, but that file cannot be read, and if refresh it shows nothing have changed in the SD card.
Anyone have any idea about this?
I have three broken micro sd cards now, two from WP7 and this one from ICS.
pacman1891 said:
I have exactly the same problem after using NexusHD2-ICS-4.0.3-CM9 V1.3. It seems this sd card was frozen, nothing on it can be changed. If I copy a file to it on computer, it shows copy successful, but that file cannot be read, and if refresh it shows nothing have changed in the SD card.
Anyone have any idea about this?
I have three broken micro sd cards now, two from WP7 and this one from ICS.
Click to expand...
Click to collapse
I waited a couple of weeks for someone to answer on this forum and tried all methods possible to format the sd card or revive it somehow but no luck so just recently purchased a new sandisk class 4 sd card hopefully this one doesn't go bad either. I just wish I knew why it was happening so I don't repeat the process again and end up damaging the card.
Have you tried to format with MAGLDR and after it on windows 7 pc ?
I did that, also followed this post:
http://forum.xda-developers.com/showthread.php?t=1283232
Contents on this sd card just refuse to change.
is there a solution to this coz im having the same problem and cant find a way to fix this
you can do it by this software's :
HDD Low Level Format Tool
MiniTool Partition Wizard
EASEUS Partition Master
Partition Wizard Home Edition
.
.
.
.
but i dont know how create swap and ext4 partitions on sd .
This happen because you formatted the card on the phone. I never recommend to format on the phone the cards but on PC. Try the application I posted on computer with FAT32 in 32768 unit size.
So I am running CM7 off of an sd card in my nook color.(Using http://forum.xda-developers.com/showthread.php?t=1904129 and I highly recommend). Win32discimager for some reason created a small partition just larger than the installer which remains on the card. I also have the android OS on the card that is taking up 1 gb partition. The rest of my 16gb micro sd card is labeled as the emmc for the tablet which is not what i intended. Now I cant load it up with my movies and videos like I had hoped.
Does anyone know:
Is there any way I can change these partitions on my card? (I have already tried EasuUS partition manager)
Where did the 1gb partition that android is on come from and why did the emmc get so large?
Is there any way to take the android image currently on my sd card and just putting onto the nook after I have already had it run from the sd card and then just formatting my sd card for storage?
There are probably newbie questions but I have tried to do my own research and havent found any certainties. Any help would be really appreciated.
posturize said:
So I am running CM7 off of an sd card in my nook color.(Using http://forum.xda-developers.com/showthread.php?t=1904129 and I highly recommend). Win32discimager for some reason created a small partition just larger than the installer which remains on the card. I also have the android OS on the card that is taking up 1 gb partition. The rest of my 16gb micro sd card is labeled as the emmc for the tablet which is not what i intended. Now I cant load it up with my movies and videos like I had hoped.
Does anyone know:
Is there any way I can change these partitions on my card? (I have already tried EasuUS partition manager)
Where did the 1gb partition that android is on come from and why did the emmc get so large?
Is there any way to take the android image currently on my sd card and just putting onto the nook after I have already had it run from the sd card and then just formatting my sd card for storage?
There are probably newbie questions but I have tried to do my own research and havent found any certainties. Any help would be really appreciated.
Click to expand...
Click to collapse
Ok, first you need to go to my tips thread linked in my signature and read in section B how the verygreen SD works. You will understand the partition structure a little better.
Now for your sdcard/emmc media storage problem, you have a setting wrong in CM7. Go to settings, CyanogenMod settings, Application and uncheck "Use internal storage". What that setting does is swap emmc and sdcard so that your real sdcard is called emmc and internal media storage is called sdcard. It is not default that way. Somehow it got checked.
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