btrfs-subvol

Description

Subvol is a simple tool for BTRFS subvolumes and snapshots.

How to use

• subvol help
• subvol list
• subvol create SUBVOLUME
• subvol delete SUBVOLUME
• subvol snapshot help
• subvol snapshot list SUBVOLUME
• subvol snapshot create [SUBVOLUME|all] [HINT]
• subvol snapshot delete SUBVOLUME [SNAPSHOT|NUMBER|RANGE]
• subvol snapshot rollback SUBVOLUME [SNAPSHOT|NUMBER]
• subvol struct help
• subvol struct check
• subvol struct init
• subvol free

Structure

The subvolumes and snapshots are organized in the folowing directories:

• /subvol
• /subvol/subvolumes
• /subvol/snapshots

Note that by default the structure is on the file system root. You can change the variable SUBVOL_BASE_DIR to use another directory.

Installation

1. Copy the script subvol to /usr/local/bin/

sudo cp 'subvol' '/usr/local/bin/';
sudo chmod +x '/usr/local/bin/subvol';

2. Initiate the subvol structure on /subvol directory

subvol struct init

Automatic snapshot on system boot

Execute these steps to enable automatic snapshots on boot.

1. Copy the service script to /etc/systemd/system:

sudo cp 'subvol-snapshot-auto.service' '/etc/systemd/system/'

2. Enable the service script:

sudo systemctl enable subvol-snapshot-auto.service

// The end