This tool hooks into the apt install/remove/update process and creates two snapshots. One before and one after the packages have been installed/removed.
At the momemt you need to have a snapper config for your root file system with the name "root".
- you need to have a deb based system and a btrfs subvolume as your root file system
- you neet to install snapper (http://snapper.io)
apt-get install snapper - you need to create a snapper config for the root file system which has to have root as name
snapper create-config / - download the files from this repository and place them as followd: 80snapper => /etc/apt/apt.conf.d/ apt-btrfs-snapper => /usr/bin/ (or /usr/local/bin, somewhere in the PATH)
- now you can do a
apt-get install xxx - check if it worked:
snapper -c root list. You should see two snapshots (one pre and one post) - to see the change from the apt-get you can do
snapper -c root status PRENUM..POSTNUM, where PRENUM and POSTNUM are the snapper snapshot numbers from 6.
- The snapper config can be configured using the snapper command or by editing the file /etc/snapper/configs/root. (e.g. turn on/off time snapshots, snapshot cleanup policy)
- If /tmp is a folder of root (/) maybe use tmpfs or create a subvolume for it.
- Create a subvolume for /var/cache (at least for /var/cache/apt/archives) and maybe /var/log