This post will interest many. a few days ago my internal memory is physically dead, the memory (16GB) is partitioned into two, /data (~ 2GB) and /sdcard (~ 14GB). Not having these partitions the phone can not save settings or user data.
Symptoms:
* Internal sd corrupt (http://forum.xda-developers.com/showthread.php?t=845708)
* (I/O) error in factory reset
* mmcblk0p1 y mmcblk0p2 does not appear in /dev/block/
* Boot loop
* E: can not mount /dev/block/mmcblk0p1 in recovery, or updating rom
* You can't install applications, since /data does not exist
Please I need your help to move the partition /data to external sd memory (/dev/block/mmcblk1p2).
I Create two partitions fat32 (/dev/block/mmcblk1p1) and ext4 (/dev/block/mmcblk1p2) and edit the fstab file and vold.fstab. the system now recognizes the FAT32 partition of the external memory as internal memory but the partition /data does not mount the second partition of external SD.
original:
---
/dev/block/stl11 /cache auto llw,check=no,nosuid,nodev
/dev/block/mmcblk0p2 /data auto llw,check=no,nosuid,nodev
/dev/block/stl10 /dbdata auto llw,check=no,nosuid,nodev
/dev/block/stl9 /system auto llw,check=no
/dev/block/mmcblk0p1 /mnt/sdcard vfat rw
(null) /sd-ext auto rw
---
edited:
---
/dev/block/stl11 /cache auto llw,check=no,nosuid,nodev
/dev/block/mmcblk1p2 /data auto llw,check=no,nosuid,nodev
/dev/block/stl10 /dbdata auto llw,check=no,nosuid,nodev
/dev/block/stl9 /system auto llw,check=no
/dev/block/mmcblk0p1 /sd-ext vfat rw
(null) /mnt/sdcard auto rw
---
The busybox df-h command shows that the first partition is mounted, but the second partition is not listed .
I've tried everything, and what I see is that it requires more knowledge. Not whether to build or edit the kernel or some file.
I appreciate your help, since many users have a higher Know-how on this topic.
* My English is very bad, I'm using the google translator.
I tried to edit the initramfs folder to edit files lpm.rc init.rc and fota.rc, i download many kernels to remove zImage and edit images and package them again, but does not work, not that I'm doing wrong.
Someone who has worked with the edition of the kernel can help me build or rebuild a file with the new changes.
Related
Is there a way to make all applications store their data in a folder other than /sdcard (root folder on the sd card) ?
I'm planning on rooting and thought that this time round I can keep my sdcard nice and organized by creating an "ApplicationData" folder in the root of the sdcard and somehow configuring android to use that.
On a similar note, can I move the DCIM (camera photos) to a different location too?
Will the below change-mount-point idea work?
Maybe as root we can
1) un-define /sdcard (in /etc/fstab) //or wherever its defined
2) define /sdcard as /dev/<hdb0>/ApplicationData //change hdb0 to the appropriate device/partition
thanks.
Yeah, I see your point... but quite frankly, I believe it's upto the app developers [my knowledge of the Android world is still from the stone-age!!]... if the app specifies that it's data will be stored in /sdcard/AppName, there's not much you can do, unless you can modify the app...
I was thinking that maybe as root we can
1) un-define /sdcard (in /etc/fstab) //or wherever its defined
2) define /sdcard as /dev/<hdb0>/ApplicationData
edit: added to post#1
britoso said:
I was thinking that maybe as root we can
1) un-define /sdcard (in /etc/fstab) //or wherever its defined
2) define /sdcard as /dev/<hdb0>/ApplicationData
edit: added to post#1
Click to expand...
Click to collapse
I did think of this too...
/sdcard --> /sd/AppData
rest of sd card --> /sd
but I think it would mean some other changes as well... for example... the mount usb functionality would have to be modified to mount/unmount a different volume...
So heres the contents of my fstab file:
Code:
C:\>adb shell cat /system/etc/fstab
/dev/block/mtdblock3 /system yaffs2 rw
/dev/block/mtdblock4 /cache yaffs2 rw
/dev/block/mtdblock5 /data yaffs2 rw
/dev/block/mmcblk0p1 /sdcard vfat rw
/dev/block/mmcblk0p2 /system/sd auto rw
/system/modules/modules.sqf /system/modules squashfs ro,loop
/system/xbin/xbin.sqf /system/xbin squashfs ro,loop
I'll try changing line 4 (/sdcard), I'm guessing /system/sd is for when I apps2sd is enabled.
Question: How do I escape from INSERT/EDIT mode in VI? Tried pressing trackball+1, trackball+1+2...didnt work
Hey britoso!
Keep us updated with your accomplishments. I, personally, am very interested in being able to achieve this.
Good luck!
update: that didnt work.
Note: the way to get the ESCAPE character is CONTROL + [ (hold the trackball then press [ ). The control key is configurable and defaults to the Jogball/TrackBall
here are the contents of my fstab file, the camera app is still writing to the root of the sdcard (/sdcard/DCIM)
Code:
C:\>adb shell cat /system/etc/fstab
/dev/block/mtdblock3 /system yaffs2 rw
/dev/block/mtdblock4 /cache yaffs2 rw
/dev/block/mtdblock5 /data yaffs2 rw
/dev/block/mmcblk0p1 /sdcard/AppData vfat rw
/dev/block/mmcblk0p2 /system/sd auto rw
/system/modules/modules.sqf /system/modules squashfs ro,loop
/system/xbin/xbin.sqf /system/xbin squashfs ro,loop
Heres the output of "df"
Code:
C:\>adb shell df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 197600 0 197600 0% /dev
tmpfs 4096 0 4096 0% /sqlite_stmt_journals
/dev/block/mtdblock3 148480 100088 48392 67% /system
/dev/block/mtdblock5 200960 63752 137208 32% /data
/dev/block/mtdblock4 97280 39628 57652 41% /cache
/dev/block//vold/179:1
15643712 6843256 8800456 44% /sdcard
@britoso
This is what I found out about mounts in Android...
The init program directly mounts all filesystems and devices using either hard-coded file names or device names generated by probing the sysfs filesystem (thereby eliminating the need for a /etc/fstab file in Android).
And from what I see in your df output, it didn't mount /sdcard/AppData...
Have a few ideas in mind... gonna try 'em out now...
craigacgomez said:
gonna try 'em out now...
Click to expand...
Click to collapse
thanks for the info. Let us know how it works out.
Here's what I reached finally...
To achieve this, I have 2 ideas...
1. We gotta modify the init and change the SD mount point to AppData and add another for the rest of the SD... this however would require a rebuilt ROM (I can't edit init on the phone, need to edit init.c from the source)
2. We push some startup scripts to achieve this, but so far, I haven't been able to mount anything else on /sdcard (operation failed), but I think I'm doing something wrong...
Didn't get much time to experiment... and it mite be a busy end of week for me... but I'll try to squeeze in so time to get this...
Why not ask Cyanogen to do this for us in his next ROM?
Or your next favorite modder?
I'm sure they'll like this idea!?
theres a setting in /init.rc that may help
Code:
export EXTERNAL_STORAGE /sdcard
However / is mounted read-only
mount
rootfs on / type rootfs (ro,relatime)
Click to expand...
Click to collapse
help me master in this,where setting auto install app to external storage in [ROM] MiniCM9-3.0.0 [1/4/12]ICS 4.0.4/CM9 port for the Χ8...
please help me master
i thinks there is no such feature because i cant find also...try app2sd application
there is app2sd script in /etc/init.d
you just need to create a new file in /sd-ext
.a2sd or .dc2sd
then simply reboot. after reboot you can check by typing mount on terminal
Code:
/dev/block/mmcblk0p2 on /sd-ext type ext4 (rw,nosuid,nodev,noatime,nodiratime,errors=continue,commit=15,barrier=1,data=o
rdered)
/dev/block/mmcblk0p2 on /data/app type ext4 (rw,nosuid,nodev,noatime,nodiratime,errors=continue,commit=15,barrier=1,data
=ordered)
/dev/block/mmcblk0p2 on /data/app-private type ext4 (rw,nosuid,nodev,noatime,nodiratime,errors=continue,commit=15,barrie
r=1,data=ordered)
I've edited vold.fstab so that sdcard and sdcard-ext are swapped. But this doesn't work on my XT894. Nothing happens in my case.
Then I found this topic.
In short, you run a script containing:
Code:
busybox mount -o remount,rw /
busybox mount -t vfat -o umask=0000 /dev/block/vold/179:97 /mnt/sdcard
busybox mount -t exfat -o umask=0000 /dev/block/vold/179:97 /mnt/sdcard
if busybox mount | busybox grep vold/179:97; then
busybox mount -o bind /data/media /mnt/extSdCard
fi
After running this script the result is that both sdcard and scard-ext are in fact pointing to my external 32GB card. So in a way I'm happy. Now I can install games and all navigational maps without any hassle. But, I would like my internal 8GB of storage back. To do so I take it "something" has to be mounted to /mnt/sdcard-ext.
My Linux/Unix is of n00b quality so here I am asking for help :cyclops:
I've tried adding these two lines:
busybox mount -t vfat -o umask=0000 /dev/block/vold/179:1 /mnt/sdcard-ext
busybox mount -t exfat -o umask=0000 /dev/block/vold/179:1 /mnt/sdcard-ext
Hoping 179:1 pounted to the internal sdcard and /mnt/sdcard-ext would mount it at exactly that. But it didn't work.
Can anyone explain to me what these commands do? Why vfat and exfat? Is this done so that you always mount the correct filesystem? And what about the vold/179:xx? Does anyone know which one points to the internal sdcard on an XT894 running ICS?
Trust me, I've Googled all I can. I have tried several options, multiple scripts, but my lack of Linux/Unix knowledge is killing me.
Edit:
When I connect as USB Mass storage I get my internal 8GB back. It is accessible on the laptop. When I switch back to MTP it shows a different directory (maybe due to vold/179:1 !?). After I re-run the script sdcard is back to my external 32GB. For now this will do.
I will update later. Sygic is downloading 2GB of data. After that I will switch back and forth between USB M / MTP with and without running the script.
Edit 2
After I connect as MTP, Internal Storage seems to be pointing to an unknown space. There is an .android directory which I am unable to find on the phone.
When I switch to USBMS (from MTP) it seems to switch back to the original setup, sdcard 8GB and sdcard-ext 32GB.
When I disconnect the USB cable everything is back to normal. But, all I need to do is re-run the script and sdcard points back to my external SD.
Hi,
i'm a new user and I can't add post to correct thread so I try to begin a new thread here.
I installed cwm 6.0.4.7-jena on my phone and all install process is been completed correctly but on reboot from cwn shell / menu I can't mount sdcard0.
This error from recovery.log file:
Code:
I:Checking for extendedcommand...
I:Skipping execution of extendedcommand, file not found...
I:Volume /storage/sdcard0 is not idle, current state is 2
Error mounting /storage/sdcard0!
File recovery.fstab it seems correct:
Code:
# cat /etc//recovery.fstab
# Android fstab file.
# The filesystem that contains the filesystem checker binary (typically /system) cannot
# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
/dev/block/mmcblk0p8 /boot emmc defaults defaults
/dev/block/mmcblk0p12 /recovery emmc defaults defaults
/dev/block/mmcblk0p16 /system ext4 ro,barrier=1 wait
/dev/block/mmcblk0p18 /data ext4 nosuid,nodev,noauto_da_alloc,barrier=1 wait,check,encryptable=footer,length=-16384
/dev/block/mmcblk0p17 /cache ext4 nosuid,nodev,barrier=1 wait,check
# vold managed volumes
/devices/platform/msm_sdcc.3/mmc_host auto vfat defaults voldmanaged=sdcard0:23,noemulatedsd,nonremovable
/devices/platform/msm_sdcc.1/mmc_host auto auto defaults voldmanaged=sdcard1:auto,noemulatedsd
/devices/platform/msm_hsusb_host.0 auto auto defaults voldmanaged=usbdisk:auto
# zRam (zramsize = 64 megabytes)
/dev/block/zram0 none swap defaults zramsize=67108864
If I use last OmniROM I see that sdcard0 is not usable and this confirm like for cwn that cwn-6.0.4.7 that there is a problem with sdcard0 (internal)
But If I use last cm-10.1 sdcard0 is correctly usable sdcard yet if on cwn it isn't possible mount it.
So probably is there a bug on cwm-6.0.4.7 and omni-4.4.2-20140202-jenad-HOMEMADE.
Could be relative to a wrong partition data ? I try to format it from cwm but I receive error and I can't donwgrade to previous cwm-6.0.3.2 (that it works with sdcard0) because there is a check on status of the sdcard0.
Any suggestions ?
Thanks in advance
Hello, I have a samsung galxy s plus with cm11 and a broken screen and i want to recover data from internal storage
when the phone is on i cannot access adb
in recovery i can use adb shell but don't know how to mount the internal storage.
I've tried several ways to mount but didn't work
here is my fstab
Code:
/dev/block/mmcblk0p16 /cache ext4 rw
/dev/block/mmcblk0p17 /data ext4 rw
/dev/block/mmcblk0p15 /system ext4 rw
and recovery.fstab
Code:
# Android fstab file.
# The filesystem that contains the filesystem checker binary (typically /system) cannot
# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
/dev/block/mmcblk0p8 /boot emmc defaults recoveryonly
/dev/block/mmcblk0p13 /recovery emmc defaults recoveryonly
/dev/block/mmcblk0p15 /system ext4 ro,errors=panic wait
/dev/block/mmcblk0p16 /cache ext4 nosuid,nodev,barrier=1 wait,check
/dev/block/mmcblk0p17 /data ext4 nosuid,nodev,noatime,noauto_da_alloc,journal_async_commit,errors=panic wait,check,encryptable=footer,length=-16384
/devices/platform/msm_sdcc.2/mmc_host/mmc1 /storage/sdcard0 vfat defaults voldmanaged=sdcard0:28,nonremovable
/devices/platform/msm_sdcc.4/mmc_host/mmc2 /storage/sdcard1 vfat defaults voldmanaged=sdcard1:auto
/devices/platform/msm_hsusb_host.0 /storage/usbdisk auto defaults voldmanaged=usbdisk:auto
can anyone help?
Google Android commander. Turn your phone on and use that to get all your files.
Sent from my SM-N900T using Tapatalk
the problem is i've modified build.prop to try to enable MTP instead of UMS but now i have boot loop (it vibrates) and even after pushing the backup of build.prop on the phone, the phone still doesn't boot. I can only use the recovery.
anyone?, Im sure there is a way but I just can't find one