[Q] 'Error mounting /sdcard/' Help - General Questions and Answers

Hi guys,
My SD card got corrupted before flashing a rom, so I'm a bit stuck (I can access the CWM menu, the kernel is fine).
So I formatted the card to FAT32 (tried other formats) but when I try and flash an update.zip from it I get
E:Can't mount /sdcard/
I also can't mount the sd card from the CWM menu.
So I'm thinking, are there some files missing from the SD card that CWM/android need to interact with it? I can imagine these files were wiped when I did a format. Like superuser files or something? You know also, those hidden files beginning with '.'
I've tried all the usual methods like formatting using SDFormatter and stuff - still, CWM can't see it (my computer can if USB is mounted). Am I right in thinking I need some kind of system files on the SD card?
Any help?
Thanks in advance

Card could be bad, try another one. If it works, trash the 1st one.
-- Sent from my TouchPad using Communities

Format it in phone if it can read it should help or try another 1 as post mortem saiď
Sent from my crap using xda app

check ur card using windows for bad sector, or format ur sd using minitool software with default setting chosen, if thats doesnt 'cure' da disease, juz claim new one, isnt sd card hav unlimited year warranty?

notoxa said:
Hi guys,
My SD card got corrupted before flashing a rom, so I'm a bit stuck (I can access the CWM menu, the kernel is fine).
So I formatted the card to FAT32 (tried other formats) but when I try and flash an update.zip from it I get
E:Can't mount /sdcard/
I also can't mount the sd card from the CWM menu.
So I'm thinking, are there some files missing from the SD card that CWM/android need to interact with it? I can imagine these files were wiped when I did a format. Like superuser files or something? You know also, those hidden files beginning with '.'
I've tried all the usual methods like formatting using SDFormatter and stuff - still, CWM can't see it (my computer can if USB is mounted). Am I right in thinking I need some kind of system files on the SD card?
Any help?
Thanks in advance
Click to expand...
Click to collapse
I also think that the SD card has the problem, I had also the same case before, but when I try my cousins memory card the SD card is now mounted in CWM..

for fixing you can try this commands on cmd
chkdsk /x /f (your sd card name)
and then press enter
WARNING:after fixing some bad sectors you will noticed that your some apps or things were zero bite on sd card.
INFO:"(your sd card name)" is means your card name for example like h: s: k: etc.and like this command
chkdsk /x /f h:

Related

[Q] SDcard not recognized [SOLVED]

Hi this is my second time coming across this problem, and I'm posting after searching/ googling for an answer. Any help is appreciated.
-I took my factory 16bg micro sd card out of my phone and put it into an SD card adapter which i then placed in my computer.
-using W7 and easus partition master i formatted the card to fat32
-when placed in my phone, the card is not recognized under settings or in cwm
-The card is fully working under linux and windows.
-I rewrote my backup of my sdcard to the newly formatted card thinking the addition of androidsecure would fix the problem. It didnt.
-I reformatted with windows a few times with no avail.
Again, any help would be appreciated as I am at a lost and would not like to have to start over with odin.
-sgs4g/ froyo/ audiophile redux 1.3.2/ bali 3.3uv/ tegrak underclocked
EDIT: Problem solved with Panasonics SD card formatting utility. It did a quick format that took all of 3 seconds. Popped it in my phone and it worked.
-I hate opening and immediately closing a thread, so my apologies.
Try reformatting through your phone.
Settings > SD card and phone storage > unmount SD card > format SD card
bkoon1218 said:
Try reformatting through your phone.
Settings > SD card and phone storage > unmount SD card > format SD card
Click to expand...
Click to collapse
When I go to that tab under settings, mount sd and format sd are grayed out. It says to insert an sd card. Any thoughts?
Try formatting to fat, not fat32. I think your phone will recognize it afterward and then you can use the phone format tool.
I know that this thread is marked solved, but I had a similar problem that this solution didn't clear up. I re-formatted the sdcard in the phone but, when I boot into recovery, CWM still can't mount it ("Error mounting /sdcard"). This means I can't make a backup, which is going to be a prerequisite for trying out a new rom.
Any suggestions?
Thanks.
same issue...
I am having the same issue. I have CWM up but it will not mount the SD card, can't seam to find any real straight forward answer. Any help would be vary helpful.

[Q] Serious Help Needed - SD Won't Mount

I wanted to wipe my phone entirely and start clean before installing Virtuous Inq but I messed up somehow and now my SD Card won't mount. I had MIUI running on my HTC Sensation.
Here's what I did to my phone today -
1. First I copied my entire SD card to my computer.
2. Next I formated my SD card and deleted everything on my phone.
3. Then I went into Clockwork and Wiped Date/Factory reset.
I was hoping it would bring me to Stock but that didn't happen. It just reset MIUI. Then when I tried to mount my SD it just says I can remove even when I click mount.
Anyone know what I can do?
Nymbus said:
I wanted to wipe my phone entirely and start clean before installing Virtuous Inq but I messed up somehow and now my SD Card won't mount. I had MIUI running on my HTC Sensation.
Here's what I did to my phone today -
1. First I copied my entire SD card to my computer.
2. Next I formated my SD card and deleted everything on my phone.
3. Then I went into Clockwork and Wiped Date/Factory reset.
I was hoping it would bring me to Stock but that didn't happen. It just reset MIUI. Then when I tried to mount my SD it just says I can remove even when I click mount.
Anyone know what I can do?
Click to expand...
Click to collapse
Bump...can anyone help?
I suspect the problem was in the formatting of your SD card. For the phone to mount it you probably need it formatted as FAT32. Did you format using a computer? Win/Mac/Linux?
pyrilium said:
I suspect the problem was in the formatting of your SD card. For the phone to mount it you probably need it formatted as FAT32. Did you format using a computer? Win/Mac/Linux?
Click to expand...
Click to collapse
This is the same SD card that I got w/ the Sensation. I never had to format or do anything to it.
OK, but you said in your original post that you formatted the SD card (item 2). If you formatted the SD card using a filesystem other than FAT32 (e.g. NTFS or HFS+) then your phone won't be able to mount it - that was what came to mind.
Have you tried to remount it using adb?
CODE: mount -o rw,remount -t /sdcard
Sent from my HTC Pyramid using xda premium
http://forum.xda-developers.com/showpost.php?p=10878511&postcount=8311
Please see the above thread. I think the trick may be you need to insert the formatted sd card into the phone while its running VI.
Nymbus said:
I wanted to wipe my phone entirely and start clean before installing Virtuous Inq but I messed up somehow and now my SD Card won't mount. I had MIUI running on my HTC Sensation.
Here's what I did to my phone today -
1. First I copied my entire SD card to my computer.
2. Next I formated my SD card and deleted everything on my phone.
3. Then I went into Clockwork and Wiped Date/Factory reset.
I was hoping it would bring me to Stock but that didn't happen. It just reset MIUI. Then when I tried to mount my SD it just says I can remove even when I click mount.
Anyone know what I can do?
Click to expand...
Click to collapse
pyrilium said:
OK, but you said in your original post that you formatted the SD card (item 2). If you formatted the SD card using a filesystem other than FAT32 (e.g. NTFS or HFS+) then your phone won't be able to mount it - that was what came to mind.
Click to expand...
Click to collapse
Well I formatted the SD card with MIUI I thought that would wipe it clean so I start a new basically. Apparently that wasn't the case.
stringer7 said:
Have you tried to remount it using adb?
CODE: mount -o rw,remount -t /sdcard
Sent from my HTC Pyramid using xda premium
Click to expand...
Click to collapse
No because I don't have a Micro SD Card Reader. Without that am I pretty much screwed...?
federra7 said:
http://forum.xda-developers.com/showpost.php?p=10878511&postcount=8311
Please see the above thread. I think the trick may be you need to insert the formatted sd card into the phone while its running VI.
Click to expand...
Click to collapse
I don't have a Micro SD Card Reader. Does that mean I have no other options?
Bump. Character Limit.
What ROM recovery are using right now. If you are using 4EXT Recovery it have format tools on the recovery. If CWM wipe the sd card is same as format. Or you can't just mount the card using ROM recovery and format on PC.
I had the same problem with the SD card. Formatting in CWM didn't help.
Resolved it by these steps:
1. Format the new SD card with fat32 on pc.
2. Switch off the phone and remove the battery.
3. Insert the new SD and the battery back.
4. Power on in recovery mode (volume down+power).
5. Find "Partition SD card" and partition it with 64KB (CWM will partition the SD to 4GB). It should do the Mounting.
6. Reboot the phone normally.
7. Go to Settings>Storage. It should be showing 4GB free space on SD.
8. In storage options pick "Unmount SD card" and then pick "Erase SD card" in same menu, Don't remove the card from phone!!! , it shoud bring SD back to original storage.
9. Mount SD back and copy back the data from the original SD.
Hope it'll be heplful.

[Q] Damaged SD card storage

Hello,
My Desire S is running on rom BlindMIUI_v2.5.25 which I loaded June 5th of this month. Suddenly since 3 days back it is saying "Damaged SD card storage" and also saying "Format USB storage, erasing all files stored there, action cannot be reversed"
Please advise should I format SD card? Will this solve the problem. If I format then I will try to save files and then will do it and restore the file again.
What happen is that if I reboot is for few time the SD card comes again and for no reason I disappear without any notice.
Please help me if there is any solution.
Brgds
Looks like It's corrupted. A format should fix it. Connect it to your computer via a memory card reader or mount it in recovery and backup everything to your computer if possible. Then do a full format of the card (uncheck quick format in Windows). After that use the 'format sdcard' option in recovery and then copy the backed up data to the phone.
Sent from my Desire HD using xda premium
format the sd card in a other format
Damaged SD card storage
sashank said:
Looks like It's corrupted. A format should fix it. Connect it to your computer via a memory card reader or mount it in recovery and backup everything to your computer if possible. Then do a full format of the card (uncheck quick format in Windows). After that use the 'format sdcard' option in recovery and then copy the backed up data to the phone.
Sent from my Desire HD using xda premium
Click to expand...
Click to collapse
Hello sashank,
Thanks for so prompt response. See I have just inserted another SD card and now phone does not get any SD card. It says "SD card is not available". From this it seems to me it is rom problem not the SD card. Am I correct? Should I change the rom and go for a newer version which is MIUI.us-2.6.8 or just a format will do?
Please advise.
Damaged SD card storage
darkion2411 said:
format the sd card in a other format
Click to expand...
Click to collapse
Hello darkion,
The phone is giving the option to format it. Should I do the format through phone or is there any other way to do it. Please advise me in details.
Would appreciate your help.
If your phone is giving an option to format it then use it. I find it strange that it didn't detect the other SD card too, but in any case if it's asking you to format it instead of just not detecting it then it doesn't seem like an issue with the card slot. So format it in the phone and see how it goes. Alternatively, go into recovery-wipe and format-format sdcard. I always use this for formatting my card as it works better then formatting it in the ROM itself, especially when my card gets corrupted.
Sent from my Desire HD using xda premium
You should not forget to simply clean your sd-card and the slot in your device a little bit. This might be an easy solution, you should at least try it.
Or maybe you've already done .. ?
Damaged SD card storage
sashank said:
If your phone is giving an option to format it then use it. I find it strange that it didn't detect the other SD card too, but in any case if it's asking you to format it instead of just not detecting it then it doesn't seem like an issue with the card slot. So format it in the phone and see how it goes. Alternatively, go into recovery-wipe and format-format sdcard. I always use this for formatting my card as it works better then formatting it in the ROM itself, especially when my card gets corrupted.
Sent from my Desire HD using xda premium
Click to expand...
Click to collapse
Hello sashank,
What I did is I formatted it in the PC so as in recovery as you said in the earlier response. The phone give the option but it does not work so I could not formatted it through phone.
It seems like working now. Phone shows there is SD card and through file explorer I can go to SD cards file. But only thing is that when I go to SD card files through file explorer, it take few seconds to retrieve the SD card files which never happened before.
Thanks for all your help.
Ok, when you format it in the PC, if you're using Windows, choose a cluster size of 32k in the format window. It gives a better read and write speed, especially read speed. So the SD card shouldn't take that long to show files. In general you'll see the card is giving faster speeds, both on the phone and when transferring files from the computer.
Also there's another way to increase the read speed of the SD card in the phone, which is by setting a higher read ahead speed. If you want to know more you can search about it, but otherwise just install this app SD Speed Increase, set your read ahead speed to 2048kB and tick 'set on every boot'. You shouldn't feel any SD lags after this. This speed increase is only on the phone though, won't reflect if you're transferring files from a computer. You need to be rooted for this to work.

Can't Install Healthy .ZIP file from SD Card

Long Version:
----------------------------------
Hello. I was preparing for a full wipe of my phone (Galaxy S3 i9300) for a clean flash for my next ROM. So I did was I got a SD Card Reader and plugged my SD Card in and put it in a laptop to copy the files, while suddenly, my SD Card got corrupted. I tried to format the SD Card with the same SD Card Reader (not knowing the Card Reader was faulty) but it made things worse. So, I took a different Card Reader, and formatted the SD Card and now all seems well. Until, when I put the .ZIP file in the SD Card, put the SD Card on my phone, and install .ZIP from SD Card on my phone using TWRP (2.8.6.1), it displays the error "E: Zip file is corrupt!" So naturally, I restarted the phone into recovery, formatted the SD Card using TWRP, changed the file system to FAT (vfat) and it displays the error "E: Unknown MTP message type: 1", then I tried repairing the file system, and it was successful. So I did was put the .ZIP in the SD Card again and try it again, with no luck.
I have already used all of these to format the SD Card and the phone still thinks the .ZIP file from the SD Card is corrupted:
Diskpart
Chkdsk
EaseUs Master Partition
Windows Format
SD Formatter (v4.0)
---------------------------------------
TL;DR
Phone got fully wiped, SD Card got corrupted while transfering files because of faulty Card Reader, SD Card got formatted a lot of times, Finally got the SD Card running, but now, if I put it inside the phone, it thinks the .ZIP File from the SD Card is corrupted.
What should I do?
p.s. (I already downloaded the same .ZIP file multiple times to make sure it was healthy, and it is)
zek.yuuki said:
Long Version:
----------------------------------
Hello. I was preparing for a full wipe of my phone (Galaxy S3 i9300) for a clean flash for my next ROM. So I did was I got a SD Card Reader and plugged my SD Card in and put it in a laptop to copy the files, while suddenly, my SD Card got corrupted. I tried to format the SD Card with the same SD Card Reader (not knowing the Card Reader was faulty) but it made things worse. So, I took a different Card Reader, and formatted the SD Card and now all seems well. Until, when I put the .ZIP file in the SD Card, put the SD Card on my phone, and install .ZIP from SD Card on my phone using TWRP (2.8.6.1), it displays the error "E: Zip file is corrupt!" So naturally, I restarted the phone into recovery, formatted the SD Card using TWRP, changed the file system to FAT (vfat) and it displays the error "E: Unknown MTP message type: 1", then I tried repairing the file system, and it was successful. So I did was put the .ZIP in the SD Card again and try it again, with no luck.
I have already used all of these to format the SD Card and the phone still thinks the .ZIP file from the SD Card is corrupted:
Diskpart
Chkdsk
EaseUs Master Partition
Windows Format
SD Formatter (v4.0)
---------------------------------------
TL;DR
Phone got fully wiped, SD Card got corrupted while transfering files because of faulty Card Reader, SD Card got formatted a lot of times, Finally got the SD Card running, but now, if I put it inside the phone, it thinks the .ZIP File from the SD Card is corrupted.
What should I do?
p.s. (I already downloaded the same .ZIP file multiple times to make sure it was healthy, and it is)
Click to expand...
Click to collapse
Try the opening the zip file on the sd card on your pc with winrar or 7 zip.
Else get a new SD Card
Hit thanks if i helped you.
ClawSpark said:
Try the opening the zip file on the sd card on your pc with winrar or 7 zip.
Else get a new SD Card
Hit thanks if i helped you.
Click to expand...
Click to collapse
Yes, the .zip file does work. I can open it on my pc
Sadly, I can't get a new SD Card. Mainly because I need this SD Card because it is a 32GB SDHC Class 10 SanDisk SD Card, and it's not cheap to get a new replacement (of the same SD Card).
I would like to know how to fix this corrupted SD Card. Because everytime I plug it into my PC (and use Windows Check Drive for Errors, and Chkdsk) and find there's no errors. And then when I finished placing the files into the SD Card, when I plug it the next time, everything got corrupted, but Windows still does not detect any errors on the drive..... wut
zek.yuuki said:
Long Version:
----------------------------------
Hello. I was preparing for a full wipe of my phone (Galaxy S3 i9300) for a clean flash for my next ROM. So I did was I got a SD Card Reader and plugged my SD Card in and put it in a laptop to copy the files, while suddenly, my SD Card got corrupted. I tried to format the SD Card with the same SD Card Reader (not knowing the Card Reader was faulty) but it made things worse. So, I took a different Card Reader, and formatted the SD Card and now all seems well. Until, when I put the .ZIP file in the SD Card, put the SD Card on my phone, and install .ZIP from SD Card on my phone using TWRP (2.8.6.1), it displays the error "E: Zip file is corrupt!" So naturally, I restarted the phone into recovery, formatted the SD Card using TWRP, changed the file system to FAT (vfat) and it displays the error "E: Unknown MTP message type: 1", then I tried repairing the file system, and it was successful. So I did was put the .ZIP in the SD Card again and try it again, with no luck.
I have already used all of these to format the SD Card and the phone still thinks the .ZIP file from the SD Card is corrupted:
Diskpart
Chkdsk
EaseUs Master Partition
Windows Format
SD Formatter (v4.0)
---------------------------------------
TL;DR
Phone got fully wiped, SD Card got corrupted while transfering files because of faulty Card Reader, SD Card got formatted a lot of times, Finally got the SD Card running, but now, if I put it inside the phone, it thinks the .ZIP File from the SD Card is corrupted.
What should I do?
p.s. (I already downloaded the same .ZIP file multiple times to make sure it was healthy, and it is)
Click to expand...
Click to collapse
Copy paste via USB cable? The ZIP might be corrupted in a way that the script is broken or somehing. Try copypasting the file via USB and if that doesn't work download a different ZIP.
janekmuric said:
Copy paste via USB cable? The ZIP might be corrupted in a way that the script is broken or somehing. Try copypasting the file via USB and if that doesn't work download a different ZIP.
Click to expand...
Click to collapse
Thanks for all the help. I was in contact with SanDisk and they are willing to replace the corrupted microSD Card. Anyways, thank you

problem formatting SD card

Hi All,
I have a problem with my SD card. (Sandisk 32gb).
The SD card was used in an android phone and formatted as internal storage, which I'm guessing encrypts the data as well.
In order to use another card in the phone, the card was removed and 'forgotten' in the phone (yeah... not very smart...)
I have already come to terms with the fact that my data is now lost forever, since the key for the encrypted data was deleted. I'm trying to reformat the card so I can use it again.
The problem: I can't format the SD card.
I've tried the following solutions, which did not work:
- Try to format the SD card using the phone. -> this gives an error message.
- Try to format the SD card using a computer:
The card doesn't show up in explorer, so I worked around using EaseUS partition master, when I try to wipe the disk, or when I try to delete partitions, I get an error. When I do a surface check, the program crashes.
- Try to clear the SD card using DiskPart, which gives a 'Data Error (cyclic redundancy check)' error.
What else could I try?
If you format your SD card directly from a PC, your choices are NTFS (which an Android device can't read) or FAT32 (inefficient & doesn't support files greater than 4G).
The best way to format an SD card is using the official SD Card Formatter from the SD Association:
https://www.sdcard.org/downloads/formatter_4/
This will format the card as exFAT which is supported by Android, while maximizing storage space.. Download, install, format, enjoy!
EEngineer said:
If you format your SD card directly from a PC, your choices are NTFS (which an Android device can't read) or FAT32 (inefficient & doesn't support files greater than 4G).
The best way to format an SD card is using the official SD Card Formatter from the SD Association:
This will format the card as exFAT which is supported by Android, while maximizing storage space.. Download, install, format, enjoy!
Click to expand...
Click to collapse
Thank you EEngineer for reacting so quickly!
I've tried the SD card formatter you recommended. However, although the card is recognised by my computer, it is not assigned a drive letter for some reason (I've tried to give it one using disk management, without success (it basically gives a cyclic redundancy check error every time I try to do anything with it)) and it doesn't show up in explorer. It follows that my card is not recognised by the formatting program, and so I can't get it to work.
My hypothesis is that the phone has formatted the card so that it cannot be read by my computer anymore and then threw away the key, so that it cannot be read by anything anymore. (which really sucks, because there's probably nothing wrong with the hardware of the card, and yet I'm going to have to throw it away if I can't get it to work)
Any other ideas?
Josh458 said:
Hi All,
I have a problem with my SD card. (Sandisk 32gb).
The SD card was used in an android phone and formatted as internal storage, which I'm guessing encrypts the data as well.
In order to use another card in the phone, the card was removed and 'forgotten' in the phone (yeah... not very smart...)
I have already come to terms with the fact that my data is now lost forever, since the key for the encrypted data was deleted. I'm trying to reformat the card so I can use it again.
The problem: I can't format the SD card.
I've tried the following solutions, which did not work:
- Try to format the SD card using the phone. -> this gives an error message.
- Try to format the SD card using a computer:
The card doesn't show up in explorer, so I worked around using EaseUS partition master, when I try to wipe the disk, or when I try to delete partitions, I get an error. When I do a surface check, the program crashes.
- Try to clear the SD card using DiskPart, which gives a 'Data Error (cyclic redundancy check)' error.
What else could I try?
Click to expand...
Click to collapse
Have you tried fdisk command?
There has been some time in between posts. Sorry for that. I really appreciate you helping me out.
I'm quite keen to get this issue resolved, since if I don't I've just wasted some money...
[email protected] said:
Have you tried fdisk command?
Click to expand...
Click to collapse
Yes, I have already tried fdisk. It resulted in the same error described above.
Josh458 said:
There has been some time in between posts. Sorry for that. I really appreciate you helping me out.
I'm quite keen to get this issue resolved, since if I don't I've just wasted some money...
Yes, I have already tried fdisk. It resulted in the same error described above.
Click to expand...
Click to collapse
Try SD formatter for Windows, it has some tools to diagnose/repair SD cards.
Sent from my LGL84VL using Tapatalk

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