Database Info

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] Error when wiping data and cash

Was having random reboots so decided to restore a backup from early in the week.
When I wiped data and cash before restoring I got a strange message I have never seen before.
E: can't mount /dev/block/mmcblk0p2
Said the same thing when I tried to wipe again.
Just wondering if this is a problem or if its normal and somehow never saw it before.

It's referencing partition 2 on that mmc device. Why it can't mount it and what it's trying to do by mounting it though are beyond me. Maybe manually unmount/remount it in CWM and see if it works?

Repartition the SD card.

I was planning on formatting the internal memory at some point. Really should have just formated from the start but I was stoked about my first rom flash on Gtab so o put it off. My main question is: does this have something to do with the security risk that was exposed recently? If so I will take all measuress necessary to fix my tab...
Sent from my Chromatic Magic using XDA Premium App

Mantara said:
I was planning on formatting the internal memory at some point. Really should have just formatrd from the start but I was vertigo Fresno lights from my first rom flash so o put it off. My main question is: does this have something to do with the security risk that was exposed recently? If so I will take all measuress necessary to fix my tab...
Sent from my Chromatic Magic using XDA Premium App
Click to expand...
Click to collapse
Nope. Not at all. Some G-Tablets are affected by a problem that corrupts the data partition, and repartitioning fixes that.

ClockworkMod Recovery - Error mounting /sdcard/.android_secure!

When I try to wipe data/factory reset in CW, I get:
Error mounting /sdcard/.android_secure!
Skipping format...
Data wipe complete.
What does this mean and what should I do?

Look at my thread on the same topic below. Got some good advice from the xda gurus.

If u get an error in clockworkmod about it being unable to mount the sdcard, try just taking out the sdcard and putting it back in that's wat happened to me before. And what version of cwm r u running?
Sent from my LG-P999 using XDA App

Ditto
jcbofkc said:
Look at my thread on the same topic below. Got some good advice from the xda gurus.
Click to expand...
Click to collapse
I am having the same issue, very troublesome and personally wondering if maybe i need to load twrp to make this phone work again. quite upset i cannot afford a new phone at this time and this is phone that you should be able to recover anytime with nvflash... HELP PLEASE!!!

Pawnrae said:
I am having the same issue, very troublesome and personally wondering if maybe i need to load twrp to make this phone work again. quite upset i cannot afford a new phone at this time and this is phone that you should be able to recover anytime with nvflash... HELP PLEASE!!!
Click to expand...
Click to collapse
Try this: copy the content of the sdcard to the computer. Format the card using the computer but not a quick format, rather a full format. Then copy your files back and see if it works now.
All sdcard develop bad bit issues over time... a full format should help.
Post results.
-- The noob says:
This just in... my IQ has increased 50 points thanks to the g2x!

vold.fstab post

Could anyone give me a hand and post their vold.fstab? My external SD will not mount..... and before the flames start I have changed mmc2 to mmc1.... and yes I did save it.
For what its worth I have also Odin to stock froyo, heimdall to stock gb, heimdall entropy dd.... flashed community kernel, infusion a2 kernel, entropy DD kernals (3/4/12 & 11/27/11) flashed Zeus & R3velation... and finally heimdall to gb then heimdall entropy DD ... then flashed Zeus again... and edited vold.fstab to mmc1 saved and rebooted.... still no external SD....
I wiped and formatted the SD (fat32) on my laptop as well....
I'd just like to see the vold.fstab from someone's infuse with working external SD....that way I can compare and try to get to the bottom of this myself without a huge back and forth thread Thanks in advance. Flame away.
Sent from my SAMSUNG-SGH-I997 using XDA

it's on the bottom of my vagabond op.
fwiw, you flashed the comm kernel onto a gb rom..may have borked your partition...start over?

Thanks for the reply Qkster! So I used heimdall to gb... and this time I did flash the second time with flash bootloaders checked. I then flashed the heimdall entropy dd kernel package (yours). BTW thanks again for the vold.fstab info... it matched my changed version.
Something strange I noticed in CMW.... if I go to Mounts and storage and try to mount /sd-ext I get
E:Can't mount /dev/block/mmcblk1p2
(File exists)
Error mounting SDEXT:!
Any ideas? I'm thinking something is borked somewhere.... lol... obviously

I don't mess around too much with the mount settings.
Some may be incorrect, idk.
I only use it to format certain things when installling a rom.
The mmc2 mmc1 switch occurs when you switch kernels from different source.
Froyo comm kernel are based on att stock
Our current gb kernels are based on rogers' source, their sd access is switched
When you can't access your microSD, check for the change in mmc2 mmc1

BrassGuy said:
E:Can't mount /dev/block/mmcblk1p2
(File exists)
Error mounting SDEXT:!
Click to expand...
Click to collapse
Get this... I get the above error when I go into CWM ... advanced....wipe dalvik cache.... as soon as I press enter (power button) to select wipe dalvik cache I get the error... crazier still if I select "no" after that it'll display "dalvik cache wiped"....
Something strange is afoot ... not sure if it is the left foot or the right... but it seems to be unaffected by wipes, flashes to stock (with bootloaders), etc....
Sent from my SAMSUNG-SGH-I997 using XDA

that error you're tallking about is "normal" in cwm
mount e: error..doesn't seem to effect issues

Well i got hold of another phone with a microSD slot.... The card won't mount in that phone either....
Word to the wise.... Don't be an idiot like me.... ALWAYS REMOVE your sd card before using heimdall or odin!!!!!!!! Im guessing that's why the op's say to....
Crawling back in my hole now... Thanks again QKster!
Sent from my SAMSUNG-SGH-I997 using XDA

BrassGuy said:
Well i got hold of another phone with a microSD slot.... The card won't mount in that phone either....
Word to the wise.... Don't be an idiot like me.... ALWAYS REMOVE your sd card before using heimdall or odin!!!!!!!! Im guessing that's why the op's say to....
Crawling back in my hole now... Thanks again QKster!
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
try accessing that card in a pc or formating in a diff system..it may be re-usable.

qkster said:
try accessing that card in a pc or formating in a diff system..it may be re-usable.
Click to expand...
Click to collapse
Yeah... I tried that today. It mounts fine in 2 different pc's. I formatted it and tried it in the phone...no go. I used diskpart clean function and installed it... no go. I used diskpart clean and formatted it and installed it... no go. Works fine with my computers but no dice in the phone(s). I might play around with it in my linux pc and see what happens.... other than that I got nothing.
BTW I flashed vagabond tonight... not bad, not bad Though I'm going to stay on the entropy kernal
I'm such a flashwhore...

BrassGuy said:
Yeah... I tried that today. It mounts fine in 2 different pc's. I formatted it and tried it in the phone...no go. I used diskpart clean function and installed it... no go. I used diskpart clean and formatted it and installed it... no go. Works fine with my computers but no dice in the phone(s). I might play around with it in my linux pc and see what happens.... other than that I got nothing.
BTW I flashed vagabond tonight... not bad, not bad Though I'm going to stay on the entropy kernal
I'm such a flashwhore...
Click to expand...
Click to collapse
Yeah, that's my preference as well. I don't use HDMI, so I run Entropy's test kernel.
Imo, running with the stock kernel is intended for those who aren't flash addicts , love their HDMI, or for us to put it on phone of other people we may know that want some features but we don't want to come back to us for issues.

Need to format SD card...

My ROM does not have a format button in the settings, is there another way to format the internal SD space within Android itself?

Jessical said:
My ROM does not have a format button in the settings, is there another way to format the internal SD space within Android itself?
Click to expand...
Click to collapse
Quite possibly, kinda. Are you rooted? If so, what recovery are you using? Most recoveries allow you to do this.
Why do u need to format within android? Why not just format from your pc?
Using SeanZ's SkyICS 4.2F r2 v6B ROM / XDA Premium

Boot into recovery, select Mounts and storage then format sdcard/ or emmc whichever one you are wanting to format
Sent from my SAMSUNG-SGH-I727 using xda premium

gs2usr said:
Boot into recovery, select Mounts and storage then format sdcard/ or emmc whichever one you are wanting to format
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
this is correct, or as an alternative u could either a) hook it up to a computer, mount it and format, or b) use adb, but I recommend either a or the method gs2usr suggested

im gonna post in this thread instead of making a new one since im having a similar issue.
In CW recovery it'll tell me it cant mount my sd-ext and as well give me an error when trying to install a custom rom from my emmc, so do i need to do a format of both of those in order to get a custom rom to finally install again?
i've had this error ever since i switched back to rogers stock 4.0.4 to try it out

I'm getting errors in cwm too. How can I do it in ADB? Macs don't do fat32 correctly and I don't have a Windows machine.

confyzone said:
im gonna post in this thread instead of making a new one since im having a similar issue.
In CW recovery it'll tell me it cant mount my sd-ext and as well give me an error when trying to install a custom rom from my emmc, so do i need to do a format of both of those in order to get a custom rom to finally install again?
i've had this error ever since i switched back to rogers stock 4.0.4 to try it out
Click to expand...
Click to collapse
Figured it out. Please try this and see if it fixes your internal aswell.
So go ahead if you don't have it, ADB install a copy of Root Explorer.
Go into the emmc folder and give it read and write permissions.
Now, in the settings, under storage, it should let you reformat the disk again and you should be okay.
I have no idea what's up with CWR, but we were told not to use it anymore on our Kindles due to it messing with partitions. But this is how I just fixed my Skyrocket, just in time for the fireworks tonight.

when in cwm, mount the emmc first

Jessical said:
Figured it out. Please try this and see if it fixes your internal aswell.
So go ahead if you don't have it, ADB install a copy of Root Explorer.
Go into the emmc folder and give it read and write permissions.
Now, in the settings, under storage, it should let you reformat the disk again and you should be okay.
I have no idea what's up with CWR, but we were told not to use it anymore on our Kindles due to it messing with partitions. But this is how I just fixed my Skyrocket, just in time for the fireworks tonight.
Click to expand...
Click to collapse
Gonna give it a go I don't use root explorer but i use es file explorer which is the same pretty much
Sent from my SGH-I727R using xda app-developers app