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[Q] "Can't mount sdcard" error in CWM

I've seen this error elsewhere, but no solution. I'm running PRIME 1.4, want to upgrade to 1.6.
- I used the nvflash method. I re-did this, obviously that didn't work.
- I tried formatting the SD card via Windows and via CWM (which didn't work, because it couldn't mount it...duh). Used the default FAT32 settings to format. For others, this seemed to be the fix.
- I CAN read the SD card on the tablet once booted up regularly. I can also mount the storage on my PC.
Any ideas? Thanks in advance.

So I tried a different sdcard (8GB, if it matters). No issues. No idea why this worked, so I guess the mystery is unsolved.

chicagoepicuser said:
So I tried a different sdcard (8GB, if it matters). No issues. No idea why this worked, so I guess the mystery is unsolved.
Click to expand...
Click to collapse
Probably partition of your sdcard. Try reformatting it to another format like NTFS or something?

chicagoepicuser said:
I've seen this error elsewhere, but no solution. I'm running PRIME 1.4, want to upgrade to 1.6.
- I used the nvflash method. I re-did this, obviously that didn't work.
- I tried formatting the SD card via Windows and via CWM (which didn't work, because it couldn't mount it...duh). Used the default FAT32 settings to format. For others, this seemed to be the fix.
- I CAN read the SD card on the tablet once booted up regularly. I can also mount the storage on my PC.
Any ideas? Thanks in advance.
Click to expand...
Click to collapse
In fact, CWM can't real actual SDcard (dock slot), it read the MicroSD only (the tablet slot)
Try putting the zip at the root of the MicroSD, and launch CWM

For me it´s doing the same - can´t mount SD card. I have microSD card that I have formated into FAT/FAT32/NTFS - nothing worked. I try to put it into SD card adapter and nothing too...
Can someone tell us please, where is the problem??? I have root, flashed cwm 3.0.2.8, standart ROM...

monkasko said:
For me it´s doing the same - can´t mount SD card. I have microSD card that I have formated into FAT/FAT32/NTFS - nothing worked. I try to put it into SD card adapter and nothing too...
Can someone tell us please, where is the problem??? I have root, flashed cwm 3.0.2.8, standart ROM...
Click to expand...
Click to collapse
MicroSD needs to be formated into FAT32 and only this format
If you read the post above yours, you would have also seen that the SDcard slot on the dock DOES NOT WORK in CWM

bud77 said:
In fact, CWM can't real actual SDcard (dock slot), it read the MicroSD only (the tablet slot)
Try putting the zip at the root of the MicroSD, and launch CWM
Click to expand...
Click to collapse
Yes, did this. I wasn't messing around with the dock, just the microSD in the tablet itself. And yes, the .zip was in the root directory--though it's not like I was able to get this far. I was not even able to see the root directory, at all.

chicagoepicuser said:
Yes, did this. I wasn't messing around with the dock, just the microSD in the tablet itself. And yes, the .zip was in the root directory--though it's not like I was able to get this far. I was not even able to see the root directory, at all.
Click to expand...
Click to collapse
Plug it in while android is running, and check if the MicroSD is seen in /removable/MicroSD
If, yes, that's pretty weird. If not, try another MicroSD

I had the mounting issue as well. But I formatted my micro SD card with SD Formatter (I am not allowed to post URL as a new user ), then it can be mounted.

myode is right, use SD Formatter 3.0 will fix your problem.
It use low-level format, where windows format don't.

I came across (i can't remember where exactly) some people swear that by formatting the microsd card in a android phone, the card no longer exhibit abnormal behaviour in the tf101.

[Q] SD Card Error

So I had rooted my phone no problem, been using it for over 2 months now. Again, no problem what so ever. I've just installed CM7 on my mytouch 4g slide and noticed a lot of bugs that still needed to be worked out. so I wiped my phone clean and restored it to an earlier date. After I did that, my sd card has been giving me an error as stated "SD card blank or unsupported filesystem." I've tried formatting it, other SD cards and nothing works. is there anyone that can help?!

i wouldn't know how that happened to your sdcard, but when you say you tried formatting it, how did you format it? i once got an sdcard from an ebay purchase, and it gave me that very same message and was unusable(and formatting it with the phone wasn't working). i made it usable by formatting it with a program called SDFormatter, which i downloaded free for Windows. took a montrously long time for the format, but once it was done, the sdcard was fine.
that sucks that you seem to have lost all your stuff tho?

Try flashing a different ROM. The CM7 we have is still in alpha. Give Team Douche time to work out the bugs.

the problem doesn't seem to be the SD card. because all the data was still there. I tried using another SD card thinking maybe that was the problem but it gave me the same error.
I've already factory reset my phone and its still showing the same problem

Could be dust in the SD card slot or some other debris. Try a little bit of compressed air..

yogi2010 said:
i wouldn't know how that happened to your sdcard, but when you say you tried formatting it, how did you format it? i once got an sdcard from an ebay purchase, and it gave me that very same message and was unusable(and formatting it with the phone wasn't working). i made it usable by formatting it with a program called SDFormatter, which i downloaded free for Windows. took a montrously long time for the format, but once it was done, the sdcard was fine.
that sucks that you seem to have lost all your stuff tho?
Click to expand...
Click to collapse
I installed the SDFormatter program you mentioned and formatted my wife's 16gig card. Prior to the format the card wouldn't mount in either of our phones and very sporadically on the PC. Now the card will mount without a problem and is usable again.
Thanks bud,
-Coug76

Coug76 said:
I installed the SDFormatter program you mentioned and formatted my wife's 16gig card. Prior to the format the card wouldn't mount in either of our phones and very sporadically on the PC. Now the card will mount without a problem and is usable again.
Thanks bud,
-Coug76
Click to expand...
Click to collapse
awesome, glad it worked for you also

Formatted my SD card...and now it won't work

My SD was acting a fool (after deleting many ROMs, it still said I had 73MB free). Nothing I did would change it so I decided to format the card. I used Disk Utility (on Mac) and formatted for FAT32. After I did that, my phone said it was in a format it couldn't recognize, so I formatted it from the phone itself. Now, when I enter recovery and attempt to install zip from sdcard, then choose zip from sdcard, it says "E:Can't mount /sdcard". I don't really know what to do, as I formatted it from my phone. I figured that was sure fire but I guess not so much. I tried to find what format I need the SD card in to work properly but I couldn't find anything.
Can someone help me out?

Fat32 is correct for the phone. Do you have a usb reader for the sdhc microsdcard or one of those sdcards that let the microsd card fit in to read it from the pc?
Sent from my LG-P999 using xda premium

Reboot in recovery, if it says it can't mount it... pop out the sd from your phone and pop it right back in and see if it works. No need to mess with mount points for it either.
Also, did you check if your lost.dir folder is taking up space? Sometimes that thing can get big.

Could have been a bad flash, try to flash it again. I know I had a problem when I bought a new sd card. You can also try to flash it from a different phone. Otherwise, if you have access to a pc, I can tell you how to format it from the command line, which is, in my opinion, better to do if you're having a problem with the quick format that the phone does.

ericalanMICHAEL said:
My SD was acting a fool (after deleting many ROMs, it still said I had 73MB free). Nothing I did would change it so I decided to format the card. I used Disk Utility (on Mac) and formatted for FAT32. After I did that, my phone said it was in a format it couldn't recognize, so I formatted it from the phone itself. Now, when I enter recovery and attempt to install zip from sdcard, then choose zip from sdcard, it says "E:Can't mount /sdcard". I don't really know what to do, as I formatted it from my phone. I figured that was sure fire but I guess not so much. I tried to find what format I need the SD card in to work properly but I couldn't find anything.
Can someone help me out?
Click to expand...
Click to collapse
Sounds like what i did one day when i wanted to wipe everything so i did including formatting my SD card through recovery. so it left me with nothing on my phone including a bootable rom! lol. if this is the case with you. Here is what i had to do. Download a new rom to my PC then plug my phone into my PC via USB/ Boot into recovery/ Mount storage/ Mount SD card/ Copy the Rom to SD card then Flash the Rom. Not too sure if this helps, I hope it does, again it sounds like the same problem i had.

Sometimes SD cards break...for some reason they will just stop working, probably due to manufacturing techniques. My old 256mb card went bad, I just tossed it yesterday as a matter of fact. it had no name brand. I still have a 4gb pny that works perfectly and a SanDisk 32gb which also works great. If you do have to get a new SD card, I would recommend getting the highest class you can afford highest out the right now I believe is C10. That will increase your transfer speeds....both of my current cards are class4 and it can take a little bit of time to transfer gigs of data between the phone and computer. If you have any other device that can accept the "card" put it in there and check if it can send and receive data/ format to proper disk size, if not then your card is broken.

Once you go class 10 you don't look back lol
Loving my Lexar 32gb class 10 microsd.
Sent from my LG-P999 using xda premium

[Q] I've got a hell of a problem.

I've got a Ver. S3 and a new 64GB class 10 Micro SD card. I can't get the phone to mount the card. The phone is stuck on the Galaxy S3 screen. The phone has been wiped. I had hoped that I could get the phone into recovery and pull a rom off the card I would be OK. It will go into CWM but it won't mount the card. I formatted the card under FAT32 on the PC. It has FAT as default, NTFS, FAT32 and exFAT. If I can load a downloaded rom and gapps I think I can get this thing going. Right now it doesn't look good. Any Ideas? I can't format with the phone since it can't mount the external card. Again, does anyone have an idea about what to do?

ergon said:
I've got a Ver. S3 and a new 64GB class 10 Micro SD card. I can't get the phone to mount the card. The phone is stuck on the Galaxy S3 screen. The phone has been wiped. I had hoped that I could get the phone into recovery and pull a rom off the card I would be OK. It will go into CWM but it won't mount the card. I formatted the card under FAT32 on the PC. It has FAT as default, NTFS, FAT32 and exFAT. If I can load a downloaded rom and gapps I think I can get this thing going. Right now it doesn't look good. Any Ideas? I can't format with the phone since it can't mount the external card. Again, does anyone have an idea about what to do?
Click to expand...
Click to collapse
Can you get it into download mode? If you can do that then you can Odin back to stock and start from square one. Have you tried another card? That may work.
I just flashed the latest ROM five minuets ago and am finally getting thirty hours of battery time! This is sick!!

Follow section 6 of this guide
http://forum.xda-developers.com/showthread.php?p=28530394
Sent from my SCH-I535 using xda app-developers app

[Q] SD Card Not Writeable?

It seems that my SD card is not writable when inserted. Is this true? I tried to create a new folder on it with root explorer (I am not rooted though) and it said that my device needs to be rooted in order to accomplish that task.
Any ideas?
Jonn

Did you try something like es file explorer? I would try that.

That didn't work either. It says "operation failed".
I actually noticed that it wasn't working playing act raiser and it wasn't saving my position. Moving the ROM to internal storage worked. I then tried to create a folder.
Sent from my Nexus 7 using Tapatalk 2

Huh. Just tried a different SD card and that one worked. Weird.
Sent from my Nexus 7 using Tapatalk 2

I spoke too soon. After removing the sdcard that worked and putting it back in, it no longer is writeable.
Sent from my Nexus 7 using Tapatalk 2

It works again if I pull the card out, restart the shield and put the card back in. Perhaps something up with the mounting process?
It appears that once a card is mounted, if it is removed and re-inserted, it remounts as read only.
Jonn
Sent from my Nexus 7 using Tapatalk 2

It looks like sdcard mounting is messed up. I can't get any of the sdcards i have tried to mount.

Did you go into settings and actually click unmount before removing the SD Card? Many linux systems (android is linux) will mount devices which werent safely removed in read only mode for some bizarre reason.

I tried that as well. It still doesn't work.
Sent from my Nexus 7 using Tapatalk 2

jonnberg said:
It seems that my SD card is not writable when inserted. Is this true? I tried to create a new folder on it with root explorer (I am not rooted though) and it said that my device needs to be rooted in order to accomplish that task.
Any ideas?
Jonn
Click to expand...
Click to collapse
when you go to storage under settings, under sd card does it show total space for card. if not maybe you have to format it to NTFS first. thats what I had to do with my new card. also said to do so on shield guide

evobunny said:
when you go to storage under settings, under sd card does it show total space for card. if not maybe you have to format it to NTFS first. thats what I had to do with my new card. also said to do so on shield guide
Click to expand...
Click to collapse
I did not read the destructions. The destructions have useful information? Where may i find these destructions? I assumed fat32 so that is what my sd is formatted to.

chevyowner said:
I did not read the destructions. The destructions have useful information? Where may i find these destructions? I assumed fat32 so that is what my sd is formatted to.
Click to expand...
Click to collapse
sorry i cant post link yet cause im new to forum. but go there, (shield.nvidia.com/user-guide/sd-card) user guide said to format it to NTFS

Would has added this sooner, but I lost my sdcard reader.
Formatting it NTFS worked.
Still wont mount, but now i at least get the option to mount.

evobunny said:
when you go to storage under settings, under sd card does it show total space for card. if not maybe you have to format it to NTFS first. thats what I had to do with my new card. also said to do so on shield guide
Click to expand...
Click to collapse
Yes, I formatted it to NTFS before I inserted it. It shows the total space and space available, it just doesn't allow anything to be written to it. I can take it out and put it in a PC and it works correctly. I also have another SD card that I tried and it worked for a few minutes, but I haven't been able to get it to keep working.
Jonn

jonnberg said:
Yes, I formatted it to NTFS before I inserted it. It shows the total space and space available, it just doesn't allow anything to be written to it. I can take it out and put it in a PC and it works correctly. I also have another SD card that I tried and it worked for a few minutes, but I haven't been able to get it to keep working.
Jonn
Click to expand...
Click to collapse
sorry I dont know what else to tell you, i first had the same problem like yall when I stuck in a brand new card. nothing I downloaded would go on to card. and it didnt show the amount of space left under the storage menu. Then i found out it need to be formated to NTFS. Once i did that everything started downloaded and showing up on card.

jonnberg said:
Yes, I formatted it to NTFS before I inserted it. It shows the total space and space available, it just doesn't allow anything to be written to it. I can take it out and put it in a PC and it works correctly. I also have another SD card that I tried and it worked for a few minutes, but I haven't been able to get it to keep working.
Jonn
Click to expand...
Click to collapse
The only memory card I have gotten working (about 1 minute ago) is 512MB and formatted fat32
The card i want to us is a 16gb microsdhc formatted fat32 when this memory card is in my shield it knows it has a memory card but says it has no partitions on it.
I am running testdisk on the sd card and it found 9 partitoins. I will try and clean that up.

To be honest, I've never tried SD card support on the device. So I can't say one way or another. But I'll be looking at it soon enough since I got my first build of CWM for SHIELD waiting for me to debug in the other room once the kids go to bed.

I just tried two different 8GB class 10 transcend cards, an 8GB class 2 generic card and a 256mb sandisk card. I put each card in and copied a file from internal storage to it. Then I removed each of the cards without unmounting and put them back in and proceeded to copy a file to the card again. Every time it worked successfully. I do not even know what format they are in and didn't format them before testing. And, maybe the issue didn't show up because I didn't give it enough time. I am not sure.
Also, I know this is probably a really dumb question but the micro sd slot is spring loaded. You are pushing it in until you hear a good solid click right?

issues
Having issues of my own.
Bought a 64gb sandisk SDXC card for shield. It worked 100% fine in my SGS3 formated for exFat. But not in the shield...
It seems to work somewhat when formated for NTFS. But the file path is really messed up and 1/2 my apps cant see the SD card because of this. It something like (root/storage/sdcard1/....)
2 apps that are basically usless right now due to this are Power amp & FPse.

Android doesn't normally support either exFat or NTFS. The shield may include support for them but if I had a shield I would steer clear anyway and go with what android definitely trusts in FAT32.
Hopefully NVidia will do a firmware update to sort these problems though