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Scripts to backup and restore LVM root volume on headless server, using fsarchiver.

Requirement

Scripts only support LVM. We only tested with Ubuntu. Also, the system must have free diskspace to create new LVM volumes: one to store the backup files and another as snapshot. If you use all disk space for LVM, you need to shrink it down. E.g.:

sudo ./lvreduce.sh -l 100G
sudo reboot

Note: lvreduce creates initramfs program to shrink root filesystem at boot. You must update initramfs again after reboot to restore old initramfs.

sudo update-initramfs -u

Usage

  • Create backup file

    sudo ./backup_w_fsarchiver.sh -b -n fresh_u16_04

  • When the system is messed up, just restore backup

    sudo ./backup_w_fsarchiver.sh -r -n fresh_u16_04
sudo reboot

For more details on each scripts, run ./<script_name> -h.