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cwm cant mount /system and /data

Hey guys I need your help
I've been using cm7 for a couple of weeks now. I havnt had problems until today.
I flashed build 32 over and for some reason it wasn't booting up. It was on the splash screen for a while (it usually does that and when I take battery out and restart it boots) so then I took the battery out. Next thing I know is that my phone is stuck on the mytouch screen... I went to recovery and when it booted into cwm 3. I got a error saying it couldn't open system/recovery/log or something like that... it still went to cwm and I checked the mounts and it said /system and /data wasn't mounted. I clicked it to mount and it gave me an error saying it couldn't ... therefore it wouldn't let me install cm7 or do a wipe... is there anything I can do to fix this? It seems to be that the nand. Is corrupted or something...

I think, based on your description, that pulling the battery at the particular instant caused the secondary problem.
A "factory reset" reformats /data and /cache. But not /system. You can do that manually from the mounts and storage menu, then either restore a nandroid backup or install cm7 and gapps.
HTC Glacier running CM7 #33

Hmm I font think its just two directories... I think my whole internal storage is messed up. I tried using the reformat option from cwm but no luck

Time to discover what you might be able to accomplish with Fastboot and a USB cable.
HTC Glacier running CM7 #33

I think a lot of people are having problems with clockwork 3 in the nexus forums, and more specifically with it screwing up partitions. I was luck just to lose my ext position on my sd...
Reformat and reflash seems to be the easiest fix...
Sent from my Nexus One using XDA App

i dont know how to repartition the phone storage :/
i tried doing it off cwm and it wouldn't let me... is there anyway to do this through adb? i think adb is working...

Reformat the whole card, and then try to repartition. This will write your data, so back up first...
Sent from my Nexus One using XDA App

how do i do that? o_o through cwm? i tried formating everything including system data cache... and i dont know how to repartition through cwm. cwm is the only thing i can get to right now :/

Sorry, looks like the only option in clockwork is to partition. Can you not do it from your pc?
Sent from my Nexus One using XDA App

yeah it gives me error when i try to do :
fastboot erase system -w :/ is there anything else?

guys... ((((( am i totally effed up? i couldn't find anything i could do.. no matter what i did, the /system and /data would NOT mount... so i cant format it

I have never tried this, but you might consider it.
In this thread is a method to return your phone to stock -- it uses the bootloader's ability to repartition and reformat everything somewhat automatically, using a file called PD15IMG.ZIP from the SD card's root folder.
http://forum.xda-developers.com/showthread.php?p=11011692&highlight=pd15img.zip#post11011692
There's a link in the thread to the .zip file -- look to post signatures. Put the file on an SD card (with another phone, or camera, or Micro-SD to SD adapter, etc.) and boot into the bootloader with that file on the SD card.
I do not know if you can rename the .zip it to update.zip and force it to flash with Fastboot's update command, because the PD15IMG.ZIP is a specific thing this phone's bootloader looks for. As stated, I have never tried this, and do not recommend this. It might work, or, it might cause more damage. Putting the file on an SD card without Fastboot will be safer.

You could try to boot your phone into fastboot,
and then type
fastboot erase -w system
Your phone wont boot after that, but you should be able to flash a new rom from clockwork.

ive tried both the pd15img.zip method. it says "partition update fail"
and i also tried the "fastboot erase system -w" and it did not work.. it says that it can't be done. i also tried to format /system through adb and cwm, and both says it can't because it must be mounted before

From your description, it seems to me that the internal flash memory has a damaged partition table -- easy enough to repair if this were a hard drive you could remove and take to a linux system somewhere. But it's a phone, and a bit of flash memory that can't be removed.
Flashboot has an "erase <partition>" command. I don't know what it does, since it's not well documented. Does it reformat an existing partition? Or does it remove the partition from the partition table? There is no commensurate "create <partition>" command, so perhaps it recreates an empty partition. But I tend to doubt it.
I would think such work might be done from an engineering bootloader or engineering recovery system -- one available to HTC service technicians, for example.
Since you're not getting a great deal of help in the MT4G subforum, you might post your question in the top level Questions and Answers forum.
Sorry I'm not much help with this.

One last thought. The bootloader itself has a Factory Reset. That might do it. Might not. But like chicken soup, it probably couldn't hurt. Boot into the bootloader (volume down while powering up), select BOOTLOADER with the volume control and then the power button, then select FACTORY RESET. Perhaps it will do something positive.

eh.. i couldnt do anything. i tried all options. its like impossible to reformat or repartition the drive..
i actually called up insurance and they'll be sending me a new mytouch 4g..
we have just told them that it doesnt go past the mytouch screen.. would they figure out that it is rooted? i mean.. choosing recovery from the bootloader menu takes it right into cwm lol

Just flash the stock recovery back via fastboot...
Sent from my Nexus One using XDA App

ive tried

dumbkkid said:
ive tried
Click to expand...
Click to collapse
you are sending the fastboot commands while in the bootloader right? I would imagine you are but I just want to make sure.

[Q] Writing to interal sdcard flash (/mnt/sdcard) galaxy s i9000 not possibe

Hello !
I have a big problem with my galaxy s.
Since January i am working with my JPY firmware quiete fine. On sunday the phone rebooted without anything done by me. Afterwards my homescreen was empty.
Most of my apps are not working now. So i have done a wipe. Nothing, the same. Interesting is, that all my data was still on the device. Then i try to format the internal sd. Not working, no error message. When I delete all files and deinstalled all apps, everthing was gone. After a reboot all data is back on the internal sd as before.
OK then i tried to flash different 1 and 3 file firmware versions with odin(also with repartitioning). But no version is really working and i never get to the homescreen. So I flashed the JPY back. Then everything is like before my first steps. All data is on the phone, i can not delete anything.
I tried do delete the storage also with recovery mode. Nothing.
I tried with adb (android sdk), deleted all files in /mnt/sdcard. After a remount all data appears back.
What can i do to get my phone working ? I have found no possibility so far.
Thanks in advance for your help!
Frederik

Fred001 said:
Hello !
I have a big problem with my galaxy s.
Since January i am working with my JPY firmware quiete fine. On sunday the phone rebooted without anything done by me. Afterwards my homescreen was empty.
Most of my apps are not working now. So i have done a wipe. Nothing, the same. Interesting is, that all my data was still on the device. Then i try to format the internal sd. Not working, no error message. When I delete all files and deinstalled all apps, everthing was gone. After a reboot all data is back on the internal sd as before.
OK then i tried to flash different 1 and 3 file firmware versions with odin(also with repartitioning). But no version is really working and i never get to the homescreen. So I flashed the JPY back. Then everything is like before my first steps. All data is on the phone, i can not delete anything.
I tried do delete the storage also with recovery mode. Nothing.
I tried with adb (android sdk), deleted all files in /mnt/sdcard. After a remount all data appears back.
What can i do to get my phone working ? I have found no possibility so far.
Thanks in advance for your help!
Frederik
Click to expand...
Click to collapse
try to update it using kies or if u have latest version then try flash your device using odn flasher

Thanks for your help harmandeep45. But all this is already done. I worked on this issue little longer and can say that there is some unrepairable problem with the internal sd. I can not delete any partition neither with adb (parted /dev/block/mmcblk0p1 rm). When I do a print everything is there. I am able to mount and unmount the partitions. No problem. But it is not possible to reorganize them. Even if i write on the sdcard partition, after a remount it is as before the write. Maybe the flash memory is broken. Does anybody had the same issue? I already tried the things written in this post, but without luck : http://forum.xda-developers.com/archive/index.php/t-845708.html

I have the same problem, i had installed another firmware on my sgs and start throwing me program errors I had before in my other firmware and when it comes to memory I saw that the folders that were there had not cleared and when I trying to delete the folders and files reappeared.

Ok, what i have tested is to flash different firmware versions. Nothing worked. I used the debug console adb to log in and tried to delete the partitions from /dev/block/mmcblk0 with parted. Nothing happens. I am not able to delete them. I don't want to send the phone to the samsung service, because there is important company data on it, like emails, banking, ebay, etc. I tried to mount it in Linux as usb memory device and used gpartet to create new partitions and overwrite all with dd if=/dev/zero of=/dev/sdb1, but after reboot everything was like before. Is there any other possibility to delete the flash???

Fred001 said:
Ok, what i have tested is to flash different firmware versions. Nothing worked. I used the debug console adb to log in and tried to delete the partitions from /dev/block/mmcblk0 with parted. Nothing happens. I am not able to delete them. I don't want to send the phone to the samsung service, because there is important company data on it, like emails, banking, ebay, etc. I tried to mount it in Linux as usb memory device and used gpartet to create new partitions and overwrite all with dd if=/dev/zero of=/dev/sdb1, but after reboot everything was like before. Is there any other possibility to delete the flash???
Click to expand...
Click to collapse
you have to flash it with jtag box riff, but I doubt you have one, you have to find a place where they have the box

sdcard wont format

i have a odd issue.
Last night the MIUI 1.10.7 ROM froze up with trinity kernal. After the reboot trinity kernal on boot screen kept freezing.
I did a full whipe re-installed MIUI 1.10.7 flashed nertchy and i was good to go.. once booted up as apps where getting restored from the market random crashed started and now everything force closes.
that is not the issue.. the issue is that i want to do a full whipe again.. how ever i can not do anything with sdcard. i have tried every possible format method and coping files to sdcard...
all it ends up is restoring the files and the file that i have copied to sdcard is gone wth :S
i can boot the system back to what it was even when i re-flash it over again still same system there trying to download files and crashing..
i have reached the end i dont know what it possible could have changed :S
help?

You could try and lock the bootloader and unlock it again. That might reset everything and get it working for you again. I had a problem with the SD card and I wasn't able to mount it in CWM to access any files so I locked and then unlocked the bootloader and everything has been working great again

no go.
earlier i tried pushing some files to sdcard using adb successfully. this only lasted until the phone was rebooted out of recovery and files where back to w/e they where before.
i pushed an filed called update.zip tried flashing.. as if i never tried.
what it seems to me like is that the whole system is preventing updates/changes to the system :S :S
no matter what i try to do to reinstall or format it goes back into its old form with exact same files and exact same problems..
basically unable to flash and delete :S:S

have you went to storage in setting menu and hit erase then erase everything?

yes,
i have tried all of the following:
- factory reset from settings
- unmounted sdcard and formatting from settings
- delete files using file explorer (deleted them but comes back on reboot)
- uninstalling application (error occurs)
- moving application to sdcard from internal storage (not enough space error occurs)
- doing factory reset using cwm
- doing individual deletes using cwm
- creating backup using cwm (error occurs, cant get chm5)
- locking/unlocking bootloader
- mounting sdcard to pc and deleting files (same thing files delete until reboot then restore)
- adb remount (remounts nothing happens)
- adb push file, i can push a file and its only there until phone reboots
- installing pushed file update.zip (miui 2.1.x) installs but still goes back to corrupted miui 1.10.7..
i don't remember what else i have tried. every time file deletes it comes back after reboot. as well as the system.
i can flash a new recovery mod and it will stick but nothing in terms of deleting files or installing new system files.

new development.. i have tried installing update.zip from fastboot menu
and this is what happens:
sending 'system' ... Okay
writing 'system' ....failed (remote: write fail)
it almost seems as if i lost all write access.. is there a way to fix this?
(fix permissions does not fix this problem)
cheers,

as the Nexus s has no actual physical SD card but it purely refers to the storage partition, I am guessing you have some how corrupted the partitions settings and possibly damaged the memory as well, i have also seen from other threads where this issue is nearly identical that the PCB board being changed fixed the problem.
sorry to say either way your Nexus S may need to go under the knife,

hmm, this was the last day i played with it...
i'll have a look tomorrow for a bussins that will take it and try to fix it
cheers, for all those who tried to help.

SD card issues

Hi,
I have a Samsung nexus S GT-19020
I had some issues booting recently so I decided to root it and put on cyanogenmod, I'm now having issues with the SD card. I can mount the card fine and view the contents however when I delete files or add them they reappear/disappear when I remount the SD card. Does anyone have any idea on what this might be? I've used adb shell to mount it and remove the files to no avail so I've ended up with a phone that can't save anything!
Thanks in advance,
Mrpinksss

First things first, make a backup. Copy any and all important files off of the phone and onto the computer, and it would be wise to copy the entire /sdcard even if there is stuff you don't think you need. If there are specific files/settings you are unsure how to backup manually feel free to ask, these may be located in /system or /data. Furthermore, i would recommend making a backup of your /efs folder (at least copy the entire folder and save it somewhere safe on the computer - be sure to get all hidden files starting with a DOT [.]), just in case if you havn't done so already.
Once this is done and anything left to worry about is behind us, try formatting the /sdcard via clockworkmod and see if that does anything. If not, post again and i'll think of some new things to try

yeah everything is backed up, I've tried to format with clockwork multiple times now with no luck. I've also tried formatting with fdisk with no luck either

Start over from the beginning and lock/unlock your bootloader which will erase/format everything. After you have everything backed up, of course, as previously mentioned.

so I tried fastboot with the stock ice cream ROM 4.0.2 which seemed to work but it won't boot and just gets stuck at the Google logo. I also locked the bootloader but when I try and unlock it I get a
FAILED (remote: Erase Fail)
thanks for your help so far!

Sounds like a busted SDCard. These are known for giving up, often quite randomly and with no warning. It is a hardware issue and generally needs Samsung to sort out the issue for you - it should be covered by warranty so long as it is still within the warranty period.

MrPinksss said:
so I tried fastboot with the stock ice cream ROM 4.0.2 which seemed to work but it won't boot and just gets stuck at the Google logo. I also locked the bootloader but when I try and unlock it I get a
FAILED (remote: Erase Fail)
thanks for your help so far!
Click to expand...
Click to collapse
Crapola, that sucks. Hmmm...
I did a search for that error message and lots of stuff came up on xda and elsewhere and i think harbb is right, your hw might be borked. Lame-o....

Well at least I got it locked and back to a stock ROM, shall take it into Vodafone.
Many thanks!

[Q] Emmc got write-protected or frozen

About a month ago my Xoom (MZ605, EOS 3.0) froze and I had to do a hard reset. After that the tablet became unusable due to the neverending stream of Closed Force dialogs. First I thought the fs and or partition table were buggered, but now I have discovered that whatever I do to the emmc, nothing changes at all: Fastboot flash, SBF flashing, fsck and gdisk in recovery (using adb shell). In all cases, the writing and flashing completes without any errors, but when checking for the results, nothing has changed at all.
Any idea on what might have caused this? Or even better: how to make to emmc writable again? If necessary I'm willing to open it up and mess with the hardware.
Thanks!

Have you tried locking and then re-unlocking the boot loader? Just a suggestion, not promising anything.
It will, normally, wipe your internal storage so make sure you backup any necessary data to a computer.
Sent from my SAMSUNG-SGH-I747 using xda premium

Hi d3athsd00r,
I tried that several times, but just be sure I tried it again. Unfortunately it didnt help Thanks for the suggestion anyway! If you or anyone else has any other ideas, please let me know. The personal data on the tablet isn't important btw (just music), so there's no problem if everything is lost.

Have you tried to format everything in cwm under the mounts menu? (Remove sdcard before doing so)
Sent by Samsung Galaxy Nexus (SCH-I515 Verizon LTE) using Tapa2

I use TWRP, but that one seems to do an rm -rf instead of a real format. Either way it has no effect: even after wiping everything several times, nothing changes: all files are still there. The same goes for using an adb shell in recovery and manually doing an ext4 format. No matter what I do, the data on the internal storage seems frozen or write protected.

ioish said:
I use TWRP, but that one seems to do an rm -rf instead of a real format. Either way it has no effect: even after wiping everything several times, nothing changes: all files are still there. The same goes for using an adb shell in recovery and manually doing an ext4 format. No matter what I do, the data on the internal storage seems frozen or write protected.
Click to expand...
Click to collapse
I would say your recovery is faulty. Try an earlier version or a different kind
Sent from my Xoom

Hi cdexsw
The problem is that flashing has no effect: when I do a fastboot flash or even RSD Lite, the commands complete without error. However after that nothing seems to have changed: the recovery stays the same, the rom (EOS 3 at the moment) stays the same and all my personal data is still there even although I did an oem lock and then oem unlock several times. It seems that whatever I do, the internal storage doesn't change a single byte. I even used dd if=/dev/zero =/dev/block/mmcblk0p10 (and also on the system and cache partitions) in an adb shell to wipe the userdata completely, but it doesn't do anything at all. So I simply can't seem to replace the recovery since not even flashing has any effect.

ioish said:
Hi cdexsw
The problem is that flashing has no effect: when I do a fastboot flash or even RSD Lite, the commands complete without error. However after that nothing seems to have changed: the recovery stays the same, the rom (EOS 3 at the moment) stays the same and all my personal data is still there even although I did an oem lock and then oem unlock several times. It seems that whatever I do, the internal storage doesn't change a single byte. I even used dd if=/dev/zero =/dev/block/mmcblk0p10 (and also on the system and cache partitions) in an adb shell to wipe the userdata completely, but it doesn't do anything at all. So I simply can't seem to replace the recovery since not even flashing has any effect.
Click to expand...
Click to collapse
odd indeed....have u looked to see if any other devices from other makes have had a similar issue?
Sent by Samsung Galaxy Nexus (SCH-I515 Verizon LTE) using Tapa2

I looked a lot on google, but didn't find anything relevant to my case. I even tried to find the datasheet of the chip to if there's a pin (ball) that controls the read-only, like a switch would. Unfortunately it doesn't seem to be publicly available on the internet.
The only topics I found to remotely relevant is:
http://discussions.nokia.com/t5/Maemo-and-MeeGo-Devices/Memory-In-Readonly-Cannot-Flash-EMMC/td-p/1030885
bu that doesn't have any relevant info.

Are you familiar with linux?
If you are, check out the first post on page 2 of this thread.
http://forum.xda-developers.com/showthread.php?t=1609825&page=2
Sent from my SGH-I747 using xda premium

Yep, quite familiar
That indeed sounds the same as my problem, but I already ran fsck a million times and everytime it complains that there are problems with the journal and won't continue. Either way, there do seem to be FS errors, because when mounting the partition it says it's fixing certain errors (very few) and then continues to mount it RW. After trying to change anything, the kernel drops the partition into RO mode. "mount" continues to show it as rw though.
That's why I tried doing an mke2fs, which completes succesfully, but it seems that the changes are only in RAM and never persisted to emmc.

ioish said:
Yep, quite familiar
That indeed sounds the same as my problem, but I already ran fsck a million times and everytime it complains that there are problems with the journal and won't continue. Either way, there do seem to be FS errors, because when mounting the partition it says it's fixing certain errors (very few) and then continues to mount it RW. After trying to change anything, the kernel drops the partition into RO mode. "mount" continues to show it as rw though.
That's why I tried doing an mke2fs, which completes succesfully, but it seems that the changes are only in RAM and never persisted to emmc.
Click to expand...
Click to collapse
Very odd indeed. I might have missed this but have you tried installing CWM (not TWRP as it only does the rm) and attempting to do a format from there?
Sent from my SGH-I747 using xda premium

I did try installing CWM using fastboot flash and also a newer version of TWRP and the command completes succesfully, no errors on the screen. When booting into recovery, the same TWRP is still there, as if I never flashed anything

Same problem with my Moto G. Nothing gets flashed. emmc is just write protected and I cannot mount anything