Borg backup

backup.sh

#!/bin/bash

set -euo pipefail

PATH=${PATH}:/sbin:/usr/sbin

[ -x /etc/init.d/lvm2-lvmetad ] && /etc/init.d/lvm2-lvmetad restart

[ -x /etc/init.d/lvm2-lvmpolld ] && /etc/init.d/lvm2-lvmpolld restart

[ -x /etc/init.d/lvm2 ] && /etc/init.d/lvm2 restart

. /etc/borg/passphrase
export BORG_PASSPHRASE

[ -d /mnt/backup/data ] || mount /mnt/backup

[ -d /mnt/aux2/home ] && umount -f /mnt/aux2

[ -e /dev/Data/backup-snapshot ] && lvremove -f /dev/Data/backup-snapshot


sync
sync
sync

if [ "${1-ssdroot}" = ssdroot ]; then

    lvcreate -L256GiB -s -n backup-snapshot /dev/Data/Root

    mount -o ro,nouuid,norecovery /dev/Data/backup-snapshot /mnt/aux2

    systemctl stop sav-protect
    time borg create -x --numeric-ids -C lz4 -e '/mnt/aux2/tmp' -e '/mnt/aux2/var/tmp' -e '/mnt/aux2/var/cache' -e '/mnt/aux2/SWAPFILE' -s -p "/mnt/backup/ssdroot::$(date -u '+%Y-%m-%dT%H:%M:%SZ')" /mnt/aux2/.
    umount /mnt/aux2
    lvremove -f Data/backup-snapshot
    systemctl start sav-protect

    time borg prune -d 7 -w 9 -m 12 -y 2 /mnt/backup/ssdroot
fi

if [ "${1-data}" = data ]; then

    lvcreate -L256GiB -s -n backup-snapshot /dev/Data/data

    mount -o ro /dev/Data/backup-snapshot /mnt/aux2

    systemctl stop sav-protect
    time borg create -x --numeric-ids -C lz4 -s -p "/mnt/backup/data::$(date -u '+%Y-%m-%dT%H:%M:%SZ')" /mnt/aux2/.
    umount /mnt/aux2
    lvremove -f Data/backup-snapshot
    systemctl start sav-protect

    time borg prune -d 7 -w 9 -m 12 -y 2 /mnt/backup/data
fi

umount /mnt/backup