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Backup

Requirements

  • Debian based system
  • btrfs as filesystem

Installation

sudo apt install btrfs-tools btrbk
sudo cp btrbk /etc/cron.dayly/btrbk
sudo chmod +x /etc/cron.dayly/btrbk

Snapshots only local

sudo cp btrbk-local.conf /etc/btrbk/btrbk.conf

Snapshots on external usb drive

sudo mkdir /mnt/backup
sudo mount /dev/sdb1 /mnt/backup/
sudo cp btrbk-extern.conf /etc/btrbk/btrbk.conf
cd /
sudo btrfs subvolume create srv

Restore a Snapshot

btrbk list snapshots
mv /srv/data /srv/data.BROKEN
btrfs subvolume snapshot /srv/backup/data.20170101 /srv/data

Restore a Backup

btrbk list backups
mv /srv/data /srv/data.BROKEN
btrfs send /mnt/backup/backup/srv.20170101 | btrfs receive /
btrfs subvolume snapshot /srv.20170101 /srv
btrfs subvolume delete /srv.20170101