Comments on: Filesystem Snapshots on Android

By: Is it possible to expand your internal memory storage using UnionFS?

Is it possible to expand your internal memory storage using UnionFS? — Fri, 27 Aug 2010 21:56:36 +0000

[...] Came across this. Filesystem Snapshots on Android – inportb Reply With Quote + Reply to Thread « Previous Thread | Next [...]

By: in /system/ schreiben ohne Root-Rechte mittels squashfs/unionfs - Android-Hilfe.de

Fri, 04 Jun 2010 19:55:22 +0000

[...] in /system/ schreiben ohne Root-Rechte mittels squashfs/unionfs Hab mal kurz gegoogelt. Filesystem Snapshots on Android – inportb Vlt. Hilft das [...]

By: Jiang Yio

Jiang Yio — Mon, 23 Nov 2009 01:55:09 +0000

You need an EXT2/3/4 partition on your SD card. This partition is where all the snapshots go. This experiment was basically built on top of the Apps2SD mechanism.

Furthermore, you need an Android build that supports UnionFS or AuFS. I’d suggest using AuFS since it’s supposedly better, but you’d have to modify the procedure somewhat.

By: anwar

anwar — Sun, 22 Nov 2009 19:02:44 +0000

can I do this process with emulator if yes how? I am trying to it but am not able to do so. The first two command aren’t working with the phone however I am supposed to do it with the emulator that we will run on the server. Please guide my on the process on emulator…

I am trying very hard but still stuck in the following command

mount -t ext2 /dev/block/mmcblk0p3 /system/sd2

First of all I don’t have mmcblk0p3 instead I have only mmcblk0p and mmcblk0p1. I have changed them but still it give me the following error…
mount: Device or resource busy

Please if you have time I need your help.

Best regards

By: Jiang Yio

Jiang Yio — Sat, 21 Nov 2009 17:51:54 +0000

AuFS seems to be all the rage these days, and it’s cyanogen preferred Apps2SD technique. Running processes are not filesystem features so what you ask is not possible. It seems that you want to implement a hibernation feature, and I suppose you’d look around in the kernel for it. You’d have to pause everything while you snapshot the CPU and RAM, though.

By: anwar

anwar — Sat, 21 Nov 2009 12:37:18 +0000

very nice I am working on the same thing I will try it. My supervisor asked my to take a snapshot of the file system so that we can later restore to that point if some goes wrong….
What partition is exactly the file system….?

One thing more is it possible to take a snapshot of the runing file system including all the runing process and save it and later reply it again?

Best regards.