CODEWITHSUNDEEP
androidfilesystemsubifs
bernal
bernal

Reputation: 21

Detect File System Working in Android

I need your help.

I need to know the File System used by one Android Device, How detect if is YAFFS or UBIFS.

Thank you.

Best Regards,

Bernal

Upvotes: 1

Views: 3828

Answers (1)

3cheesewheel
3cheesewheel

Reputation: 9623

I actually stumbled across this question while finding a way to transfer my photos without using HTC Sync Manager, but you might find this helpful:

  1. Install an ssh server, e.g. SSHDroid on the device

  2. Once that's installed, start an ssh server. On a computer, ssh into it using the information given in the SSHDroid app:

    $ ssh root@<ip address> -p <port number>

    It will take a while. When it asks you Are you sure you want to continue connecting?, say yes. Then, when it prompts you for the password, enter admin.

  3. Once you're ssh'd into the Android, run: 

    $ mount

You will get an output similar to this: 

~/data/berserker.android.apps.sshdroid/home $ mount
rootfs on / type rootfs (ro,relatime)
tmpfs on /dev type tmpfs (rw,nosuid,relatime,mode=755)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt/asec type tmpfs (rw,relatime,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,relatime,mode=755,gid=1000)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
none on /dev/timer_group type cgroup (rw,relatime,timer_slack)
/dev/block/mmcblk0p33 on /system type ext4 (ro,noatime,data=ordered)
/dev/block/mmcblk0p35 on /data type ext4 (rw,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered)
/dev/block/mmcblk0p34 on /cache type ext4 (rw,nosuid,nodev,noatime,data=ordered)
/dev/block/mmcblk0p26 on /devlog type ext4 (rw,nosuid,nodev,noatime,data=ordered)
/dev/block/mmcblk0p17 on /firmware_radio type vfat (ro,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/mmcblk0p18 on /firmware_q6 type vfat (ro,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/mmcblk0p19 on /firmware_wcnss type vfat (ro,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
DxDrmServerIpc on /data/DxDrm/fuse type fuse.DxDrmServerIpc (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
htcfs on /data/htcfs type fuse.htcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
/dev/block/vold/179:36 on /storage/sdcard0 type vfat (rw,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro,discard)
/dev/block/vold/179:36 on /mnt/secure/asec type vfat (rw,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro,discard)
tmpfs on /storage/sdcard0/.android_secure type tmpfs (ro,relatime,size=0k,mode=000)

I don't know much about Android file system structure, but according to this article, the /system partition contains the entire Android OS. I have a line like this in the output of mount: 

/dev/block/mmcblk0p33 on /system type ext4 (ro,noatime,data=ordered)

So it's likely you will too. Also, I guess I have ext4 as my file system type.

Of course, you could have done all of this using a terminal emulator app, but that's a whole lot of output to parse, so you're better off ssh'ing from a bigger screen.

Upvotes: 1

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