Database Users

[Q] Kernel does not support usb storage

I just got my Iconia today and I used the gingerbreak root method and confirmed I had root and then installed CWM recovery via the Acer Recovery Installer but when I boot to recovery and try to run a backup I get the following message:
Kernel does not support usb storage
I am also not able to mount the sd card in either recovery or when the OS is running.
I don't see any other information about this problem. What have I missed?

richdaley said:
I just got my Iconia today and I used the gingerbreak root method and confirmed I had root and then installed CWM recovery via the Acer Recovery Installer but when I boot to recovery and try to run a backup I get the following message:
Kernel does not support usb storage
I am also not able to mount the sd card in either recovery or when the OS is running.
I don't see any other information about this problem. What have I missed?
Click to expand...
Click to collapse
I have the same problem, anyone know a solution.
My Iconia not read any USB pendrive or keyboard or mouse connected.
Please help!!!!

It does or at least it seem to if you look in the mnt dir you see directory for both external card and usb storage. It is just that the system does not but up any notices of have a card or usb storage unless you look in those directory or system storage setting.

Common problem, plenty of posts about it on here.
CWM is fussy about which SD cards it will work with. Either try formatting your card from the tablet or an Android phone, or try another card.
Smaller cards seem to work best.

Yes, FloatingFatMan rights. I do have problem with external sdcard with CWM before, try to update ROM. Just give it a clean fat32 format. Reboot the system until you are able to access external sdcard and back again to the cwm.

put the card before power on...
or the usb drive before power on...
CWM does not like you change sdcard when it's running
once the device is started on CWM , do not remove sdcard or else.

sanaell said:
put the card before power on...
or the usb drive before power on...
CWM does not like you change sdcard when it's running
once the device is started on CWM , do not remove sdcard or else.
Click to expand...
Click to collapse
My SDCard (4Gb) is always in slot and in Android OS with File Manager HD i see it and i can use it normally.
Only in CWM i have this error, and i have problems with USB external storage: USB pendrives, mouse or keyboard connected to Iconia not work.
The Pendrive's led is on but not work in system, all USB pen drive(1Gb, 2Gb or 32Gb) i test are formatted in FAT32 and after Update to 3.1 Stock not work again.
I go to a shop with Iconia to test in it and my Pendrives work correctly in these devices with 3.0.1 HC.
I use a lot of different File Manager (Root Explorer, File Manager HD, Astro) with same result, if i go in /mnt/usb_storage i dont see anything.
Any solution?
My iconia is damaged or it's a software problem????

ssj5trunks said:
My SDCard (4Gb) is always in slot and in Android OS with File Manager HD i see it and i can use it normally.
Only in CWM i have this error, and i have problems with USB external storage: USB pendrives, mouse or keyboard connected to Iconia not work.
The Pendrive's led is on but not work in system, all USB pen drive(1Gb, 2Gb or 32Gb) i test are formatted in FAT32 and after Update to 3.1 Stock not work again.
I go to a shop with Iconia to test in it and my Pendrives work correctly in these devices with 3.0.1 HC.
I use a lot of different File Manager (Root Explorer, File Manager HD, Astro) with same result, if i go in /mnt/usb_storage i dont see anything.
Any solution?
My iconia is damaged or it's a software problem????
Click to expand...
Click to collapse
if you can t plug anything mouse pendrive etc... then... why you are looking too far...
I might say HARDWARE problem.
change your iconia asap

sanaell said:
if you can t plug anything mouse pendrive etc... then... why you are looking too far...
I might say HARDWARE problem.
change your iconia asap
Click to expand...
Click to collapse
Today i sent my Iconia to Acer support.
I hope it'll come back quickly.
Bye

never send rooted/jailbreaked stuff to support or they unroot and hard reset n blame it on root/jailbreak happened with my friends ipad 2 and his android phone after the stopped responding to external storage and the transfer cables

[Q] Question re: USB Disk drive

OK, I just downloaded and installed the 3.1 update, running stock OS.
CONFIG
I have a 32GB A500 which I assume is main memory / SSD. I also added a 32GB micro SDHC chip in it, and for testing, an 8GB thumb drive in the large USB port. They all show up in system Settings,
When I have had the A500 connected via the mini-USB port, the memory / SSD shows up, but not the sdhc card, and not a thumb drive if i plug that in (when I look at it as an extended drive)
Some applications can see memory / SSD, and the micro SDHC chip. For example, ES File Explorer has a tab which cycles between the memory / SSD file system, and that on the SHDC chip. It doesn't include USB storage.
QUESTION
First, I'd like to confirm that something (anything) can read the USB file system.
Next, I am looking for a utility that would allow me to see all three file systems: main/SSD, SDHC, and USB, and move things back and forth between them, and to/from my PC as well. Recommendations?

As far as I know there is nothing that will allow you to read the 'external' drives from PC. This was supposed to be fixed in 3.1 (just another thing borked..), so go figure when or IF it'll ever be available.
Incidentally, my 2.2 Archos 101 did all that perfectly, but the new android versions won't, funny eh?

Assuming he has the proper drivers installed, what if he went micro usb connected to pc and thumb drive in tablet. He could read/transfer files from thumb to tablet and have the pc read/transfer to/from the tablet. If that makes sense or helps.

Get a file explorer and go to the mnt directory. the internal, external and usb storage are all there.

I guess I'd be happy with an answer to the first question below, happier with an answer to the second:
1. Is there any app, running on the tablet, which will allow me to see the file system on a USB thumbdrive? Which one. It's odd to me that I can see the drive, apparently properly formed, in the tablet "system settings" app, but (so far) haven't seen how to get at it myself, and haven't found an app which access it either.
2. Is there an application, running on the PC, or an app running on the tablet, which let's me see the file systems on tablet, tablet's sdhc chip, thumb drive and PC storage in a unified way, so I can move things around without unplugging stuff? That is harder, but one of those networked file access utilities might do it.

GCurry said:
I guess I'd be happy with an answer to the first question below, happier with an answer to the second:
1. Is there any app, running on the tablet, which will allow me to see the file system on a USB thumbdrive? Which one. It's odd to me that I can see the drive, apparently properly formed, in the tablet "system settings" app, but (so far) haven't seen how to get at it myself, and haven't found an app which access it either.
2. Is there an application, running on the PC, or an app running on the tablet, which let's me see the file systems on tablet, tablet's sdhc chip, thumb drive and PC storage in a unified way, so I can move things around without unplugging stuff? That is harder, but one of those networked file access utilities might do it.
Click to expand...
Click to collapse
1) I use Root Explorer and I can see the USB Storage in the MNT directory in the root of the device.
2) from the PC, adb i assume, but i've never done this. For network, try Samba server - https://market.android.com/details?id=com.funkyfresh.samba&feature=search_result.

GCurry said:
I guess I'd be happy with an answer to the first question below, happier with an answer to the second:
1. Is there any app, running on the tablet, which will allow me to see the file system on a USB thumbdrive? Which one. It's odd to me that I can see the drive, apparently properly formed, in the tablet "system settings" app, but (so far) haven't seen how to get at it myself, and haven't found an app which access it either.
2. Is there an application, running on the PC, or an app running on the tablet, which let's me see the file systems on tablet, tablet's sdhc chip, thumb drive and PC storage in a unified way, so I can move things around without unplugging stuff? That is harder, but one of those networked file access utilities might do it.
Click to expand...
Click to collapse
To answer the first one, no, there is no application to read the external data drives.
As for the second, to transfer files between these, you need to get a file explorer like Root Explorer. The multimedia apps have the ability to access the external data drives so if you want to store music and/or movies on them, you do not have to use up your internal memory.
Hope that answered your question.

Does 3.1 add ntfs support??....if not can I make it support without rooting my tab??
Sent from my XT720 using XDA App

Root explorer works great, so does File Manager HD

GCurry said:
OK, I just downloaded and installed the 3.1 update, running stock OS.
QUESTION
First, I'd like to confirm that something (anything) can read the USB file system.
Next, I am looking for a utility that would allow me to see all three file systems: main/SSD, SDHC, and USB, and move things back and forth between them, and to/from my PC as well. Recommendations?
Click to expand...
Click to collapse
I use Astro, in Astro I see them all. Home, Up and you'll see all the storage areas.
Astro will allow you to move things back and forth between SD, USB and Internal storage.
Nothing that I know of, will allow you to directly view your USB or MicroSD using your PC, by directly I mean through the microusb connection.
There's an app called Wifi File Explorer Pro which may allow you to see them on the PC however I'm not certain as I never used it extensively and may be more trouble than it's worth as you'll have to open a port in your router for it to work properly.
Hope this helps.

Any file manager can access /mnt/external_sd and /mnt/usb_storage.
Drive mount or USB mount all can mount ntfs drives. Must be rooted.
Can only access internal memory front PC. End of story until google/Acer fixes it.
Sent from my A500 using Tapatalk

Euclid's Brother said:
Any file manager can access /mnt/external_sd and /mnt/usb_storage.
Drive mount or USB mount all can mount ntfs drives. Must be rooted.
Can only access internal memory front PC. End of story until google/Acer fixes it.
Sent from my A500 using Tapatalk
Click to expand...
Click to collapse
I am on 3.1 ota and I wanted to root it for ntfs support.....but don't want to void my warranty.....(weather here is too humid so generally all electronic devices don't work or something or the other happens to them)...so I will unroot later to claim my warranty.....what else can I do with root.....(no custom roms..).......
Sent from my XT720 using XDA App

1. Is there any app, running on the tablet, which will allow me to see the file system on a USB thumbdrive? Which one. It's odd to me that I can see the drive, apparently properly formed, in the tablet "system settings" app, but (so far) haven't seen how to get at it myself, and haven't found an app which access it either.
Click to expand...
Click to collapse
Any file system application (ASTRO, Root Explorer) can access all storage devices in your system. The location for the storage devices is /mnt.
Note that the /mnt/sdcard directory is actually a FUSE mount of /data/local
The directories related to storage are:
/mnt/sdcard - a FUSE image of /data/local. This is internal storage.
/mnt/external_sd - The microSD card. Must be FAT32.
/mnt/usb_drive - A USB drive of some sorts...can be a thumb drive or a hard drive. Not sure about 3.1, but 3.0.1 needed this drive to be FAT32.
2. Is there an application, running on the PC, or an app running on the tablet, which let's me see the file systems on tablet, tablet's sdhc chip, thumb drive and PC storage in a unified way, so I can move things around without unplugging stuff? That is harder, but one of those networked file access utilities might do it.
Click to expand...
Click to collapse
Answer...other than ADB, no (until Acer fixes that). When you mount your tablet to your PC, you are connecting to a FUSE partition, which is an image of /data/local. You can transfer files between /data/local (via FUSE partition) and your PC. Unfortunately, because you are accessing a FUSE partition, you are restricted to only /data/local (so you can't get to /mnt). ADB is a known exception (as it uses USB Debugging to access the tablet), but that isn't graphical at all (all command line, which means it is a lot of typing).

op mentioned ES file explorer
Use it myself - as I really like the interface and the LAN access works great for me.
You can see all your storage devices from es explorer
/mnt/sdcard = internal memory
/mnt/external_sd = microsd card
/mnt/USB_drive = USB based storage device
If you want to mount ntfs you need to root.

[Q] Catch-22 eLocity A7

I have installed A7Comb rom which mostly does a good job. The biggest problem is that external sdcard and usb are inaccessible. If I choose to go back to 3.01 where I had this capability, access to external sdcard is required to flash the old rom. Am I screwed or are there any other alternatives?
ooorah

im not positive, but if i remember correctly you have access to the external sd (using Root Explorer or something like it) there is /Mnt/sdcard check in there im not sure the exact directory, but im pretty sure it was in there when i was using A7comb, then you can copy and paste the update.zip to the root of the sd
Let me know if you can't find it, i will flash A7comb real quick to give you a hand

Catch-22 eLocity A7
smallba, Thanks for the reply. Can root explorer be used to do the rom flashing? I can get the 1.41 rom on the sdcard using my desktop, but the A7 can't see it. I've tried to flash using the start button routine, but it never recognizes the sdcard and sends me back to boot. Then I cant boot until I remove the sdcard. Also, even though I'm rooted and have superuser, root explorer always fc's. What a mess.
ooorah

ooorah said:
I have installed A7Comb rom which mostly does a good job. The biggest problem is that external sdcard and usb are inaccessible. If I choose to go back to 3.01 where I had this capability, access to external sdcard is required to flash the old rom. Am I screwed or are there any other alternatives?
ooorah
Click to expand...
Click to collapse
Try mnt/external_sd ..

ooorah said:
smallba, Thanks for the reply. Can root explorer be used to do the rom flashing? I can get the 1.41 rom on the sdcard using my desktop, but the A7 can't see it. I've tried to flash using the start button routine, but it never recognizes the sdcard and sends me back to boot. Then I cant boot until I remove the sdcard. Also, even though I'm rooted and have superuser, root explorer always fc's. What a mess.
ooorah
Click to expand...
Click to collapse
Do you have Sdhc adaptor physically plug the micro sdhc in the computer and then move the update zip to the sd?
What kind of sdcard are u using?
Sent from my PC36100 using XDA Premium App

Thanks for your reply. At /mnt/external_sd the sd folder is shown as empty.
ooorah

smallba I connect via usb to my desktop using a Targus adapter. The sdscard is Kingston 2gb formatted fat32. I cut/paste update.zip to the sd card.
ooorah

Do you have a cell phone to try the sd card in? I just want to make sure it is not corrupted, you have flashed before using this same sdcard?
Sent from my PC36100 using XDA Premium App

Yes I've used this sd card to flash on my Acer A500. I'm sure it's ok.
ooorah

What does it do when you put in and pull out the sdcard?
Sent from my PC36100 using XDA Premium App

When sdcard is installed I look at externai_sd and it's empty. I cannot reboot until the sdcard is removed. BTW, various mount apps I've tried fail to recognize the presence of a sdcard.
ooorah

I know I been asking many questions, but it recognized in the accer?
Sent from my PC36100 using XDA Premium App

Yes, sdcard was recognized in Acer 500. Content was shown under external sd.

A7
What rom are you trying to flash back to?
I had some issues reverting back from A7Comb.
I think I had to flash back to stock first.

Re: your previous post, how can I flash back to stock if I can't find external sd?
ooorah

Cant read SD
I reloaded my copy of A7Comb and will play around with it to see if I run into the same issue. If the SD can't be used, it may be possible to connect via USB/ADB and push the stock images.
However, I have never used ADB with the A7, only with other devices. I will also try and figure that out to see if that's a viable option. Will need to find the drivers and get those loaded. Been meaning to test ADB with this device anyway.

Thanks DANO, I'd appreciate the help.
ooorah

I'll do what I can, I'm no expert, but I am very comfortable with ADB and have no concerns about messing with my A7. I've been meaning to do this for a while anyway. Will probably take me a few days to get get the A7 connected to ADB as its USB port doesn't play nice, and there are some tricks to getting windows/ADB to pick up the device. I'm also gonna try and lookup Dexter to see if he can give me some tips on doing this.

I used ADB last March and rooted my CRUZ 7" tablet. Whether it will work with a usb connection to eLocity A7 will have to be tried. I'll play around to see if I can get it working. If I get that far I'll have to wait for further instructions.
ps I can use a usb keyboard with no problem. ooorah

Yeah, keyboards, thumb drives, etc. should all work as the A7’s USB slot is set to host mode by default. The trick is flipping the switch to slave/device mode so we can use ADB to communicate with it.
Dexter’s A7Comb Rom had an App “OTG” for doing this (with a reboot), but when I tried it out, my Windows 7 box only saw the device but still didn’t fully communicate with it (ADB didn’t see it at all). Most likely due to the lack of a driver, or rather telling it where the driver was.
I’ve got some info on doing this, and I plan on trying to get this up and going tonight. Once I get ADB connected to the A7, I would think we should be able to push a new recovery image or something along those lines to fix whatever happened with the SD Card.
Just curious, have you tried a factory reset, data wipe, etc. (then reboot back into recovery), and tried to run the update.zip from the SD Card. I doubt this will work, but the A7 re-writes the recovery image with each update, therefore if something got corrupted, perhaps a wipe will fix whatever is broken in recovery by way of re-writing it. I’m not sure if recovery gets replaced with just a data wipe/reset, but if you don’t mind resetting your device it might be worth a shot.

[Q] Connecting with external hard drive

Hi
How do I connect an exernal hard drive to Acer A500 and can see and use the content of the hard drive ?
tsand

Hi,
All i've needed to do is connect via USB and then use my file explorer (ES file explorer) to navigate to mnt, then select USB storage. If you use Astro, it should show as USB storage at the left of the screen.
simples

You'll just need to make sure the external HD is FAT or FAT32 formatted. Stock A500 won't see NTFS drives...

Magicspell said:
You'll just need to make sure the external HD is FAT or FAT32 formatted. Stock A500 won't see NTFS drives...
Click to expand...
Click to collapse
And if you have an NTFS formatted drive, you can get Drive Mount from the Market free.

Funny really, when I had stock rom on it recognised the NTFS drive straight away. Didn't need drive mount... It was 4.031.26, HC 3.2...
Not sure where it came from, I'm in Oz but I got a refurb off Ebay...

ultramag69 said:
Funny really, when I had stock rom on it recognised the NTFS drive straight away. Didn't need drive mount... It was 4.031.26, HC 3.2...
Not sure where it came from, I'm in Oz but I got a refurb off Ebay...
Click to expand...
Click to collapse
Yeah, I know. It's hit and miss. Drives me crazy sometimes. 1 stock rom needs it, where the other doesn't (3.2). Flash a cooked kernel, it see's it, flash another version of the same kernel, it doesn't see it. Last night flashed Drellisde's new version of his kernel, and it works again! Go figure.....
Bottom line, if it don't mount your NTFS, use Drive Mount, pretty simple really.

ultramag69 said:
Funny really, when I had stock rom on it recognised the NTFS drive straight away. Didn't need drive mount... It was 4.031.26, HC 3.2...
Not sure where it came from, I'm in Oz but I got a refurb off Ebay...
Click to expand...
Click to collapse
Hi! Same problem here and couldn't figure out what it was until seeing this thread.
Stock my external drive was recognized right away, but now 3 roms in, all of a sudden it is not!
Thanks for the help guys I'll look up drive mount again.

Life Saver
JumboSlim said:
Hi,
All i've needed to do is connect via USB and then use my file explorer (ES file explorer) to navigate to mnt, then select USB storage. If you use Astro, it should show as USB storage at the left of the screen.
simples
Click to expand...
Click to collapse
Thanks buddy - was going a little bonkers trying to find the directory for the USB!

marshmallow 6.0 and USB Fat32 ONLY ! no exfat or NTFS support

Hello.
I use my nexus player as Kodi player
I have upgraded to android 6.0.
When y connect a USB memory stick formated in NTFS or ExFAT, android didnt mount the file system, I can only format the USB stick.
With Fat32 usb memory stick, Android mount the file system and I can access the files (/STORAGE/XXXXX).
But with the fat32 system, i can't copy file > 4 Go (big MKV video) on the memory stick (fat32 limitation).
Can you help me ?
Thanks, and sorry for my bad english.

I have run into the same issue. Unfortunately it doesn't seem like anyone has built an ASOP Marshmallow 6.0 kernel with ntfs or exfat enabled. One option is to downgrade to 5.1.1 and use Kernelfox's kernel and another option possibly is to be install CM 12.1 rom.

I found this issue annoying as well... I finally just plugged the USB stick into my router and load my large .mkv files from there... but you'd think android would support ntfs sticks... oh well.

root
install stickmount
that is the only way i know for sure to do it. i have an external drive connected directly and play large 20gb plus mkv rips doing it this way. there is a file you must install on the root but just read all the instructions in the stickmount description in the store

knives of ice said:
root
install stickmount
that is the only way i know for sure to do it. i have an external drive connected directly and play large 20gb plus mkv rips doing it this way. there is a file you must install on the root but just read all the instructions in the stickmount description in the store
Click to expand...
Click to collapse
Does this work on 6.0? I currently have two 1TB drives on 5.1.1. I couldn't get them to work on 6.0 when it first came out.

brkshr said:
Does this work on 6.0? I currently have two 1TB drives on 5.1.1. I couldn't get them to work on 6.0 when it first came out.
Click to expand...
Click to collapse
yes, it definitely works on 6.0
you need to make sure you follow the instructions for the file that needs to be installed with stickmount. all the instructions are in the stickmount description in the store.

knives of ice said:
yes, it definitely works on 6.0
you need to make sure you follow the instructions for the file that needs to be installed with stickmount. all the instructions are in the stickmount description in the store.
Click to expand...
Click to collapse
Awesome, thank you! Just didn't want to flash 6.0 and find out it doesn't work again and have to go back.

brkshr said:
Awesome, thank you! Just didn't want to flash 6.0 and find out it doesn't work again and have to go back.
Click to expand...
Click to collapse
Have you attempted the merge? Can you post your results please?

xconwayx said:
Have you attempted the merge? Can you post your results please?
Click to expand...
Click to collapse
Yes sir. I installed 6.0.1, rooted and installed Stickmount. Everything works. The only thing different from Android 5.1 is when I plug my hard drives in, I have to go into ES File Explorer and unmount both drives, because of Android 6.0's built in OTG support. Then I can go into Stickmount and mount the drives as usual. It adds an extra step, but I think it's worth it because Android 6.0 looks much smoother than 5.1 did.
Edit: I've also found out in the past that things go smoother if you unmount drives in stickmount before you take out or plug in another drive.
Edit2: Also, my drives are NTFS formatted. Stickmount asks you to download 2 files when you first open it. I suspect these are the NTFS and EXFAT compatibility files, because I've never had a problem with NTFS drives.

brkshr said:
Yes sir. I installed 6.0.1, rooted and installed Stickmount. Everything works. The only thing different from Android 5.1 is when I plug my hard drives in, I have to go into ES File Explorer and unmount both drives, because of Android 6.0's built in OTG support. Then I can go into Stickmount and mount the drives as usual. It adds an extra step, but I think it's worth it because Android 6.0 looks much smoother than 5.1 did.
Edit: I've also found out in the past that things go smoother if you unmount drives in stickmount before you take out or plug in another drive.
Edit2: Also, my drives are NTFS formatted. Stickmount asks you to download 2 files when you first open it. I suspect these are the NTFS and EXFAT compatibility files, because I've never had a problem with NTFS drives.
Click to expand...
Click to collapse
Thank you for sharing these findings! Much appreciated.

brkshr said:
Yes sir. I installed 6.0.1, rooted and installed Stickmount. Everything works. The only thing different from Android 5.1 is when I plug my hard drives in, I have to go into ES File Explorer and unmount both drives, because of Android 6.0's built in OTG support. Then I can go into Stickmount and mount the drives as usual. It adds an extra step, but I think it's worth it because Android 6.0 looks much smoother than 5.1 did.
Edit: I've also found out in the past that things go smoother if you unmount drives in stickmount before you take out or plug in another drive.
Edit2: Also, my drives are NTFS formatted. Stickmount asks you to download 2 files when you first open it. I suspect these are the NTFS and EXFAT compatibility files, because I've never had a problem with NTFS drives.
Click to expand...
Click to collapse
Is there anyway to automate the unmount/mount? I'll be stetting this up for someone else, and don't want to redo it everytime he resets the device.

matthelm said:
Is there anyway to automate the unmount/mount? I'll be stetting this up for someone else, and don't want to redo it everytime he resets the device.
Click to expand...
Click to collapse
Not that I know of

I know that it's too much later but after suffering the inability to mount neither exFAT nor NTFS in stock MM in my Idol 3, i leave the program that mounts successfully both file systems, https://play.google.com/store/apps/details?id=com.paragon.tcplugins_ntfs_ro
It's weird but in LP i could mount exFAT file systems without any external program and after upgrading to MM it's not possible, sometimes AOSP gets worse. Anyway, before that i used to make use of this app to mount NTFS and still work in MM, https://play.google.com/store/apps/details?id=com.paragon.mounter