166 lines
3.4 KiB
Bash
166 lines
3.4 KiB
Bash
#!/bin/bash
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export LANG="en_US.UTF-8"
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backupcfg="/etc/backup.cfg"
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ziel="/var/lib/backup/ziel"
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cfg="/etc/btrbk/btrbk.conf.void"
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fhelp() {
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echo "Nutze es so:"
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echo "sudo backup"
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echo "sudo backup poweroff (um den Rechner nach dem Backup herunterzufahren.)"
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#echo "sudo backup update (um den Rechner nach dem Backup up zu daten.)"
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#echo "update und poweroff sind mixbar"
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echo "sudo backup passwd (um das Passwort für die Backupfestplatte zu ändern.)"
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}
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if [ "${UID}" -ne "0" ]; then
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echo "Keine Rootrechte."
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exit 1
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fi
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if [[ -f /etc/btrbk/btrbk.conf ]]; then
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function finish {
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sync
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if [ "${poweroff}" = "y" ]; then
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shutdown -h now
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fi
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sleep 4
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echo "FERTIG"
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rm -rf /tmp/backup
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}
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trap finish EXIT
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if ! btrbk --progress --quiet run backup; then
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btrbk --progress --quiet clean
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echo "Wegen Fehler nicht herunterfahren."
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poweroff=n
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fi
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exit
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fi
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if [[ -f "${backupcfg}" ]]; then
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source "${backupcfg}"
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else
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echo "${backupcfg} fehlt."
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echo "Entweder:"
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echo "UUID=\"uuid\" > ${backupcfg}"
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echo "oder:"
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echo "\`void-createbackupcontainer\` um eine neue Backupplatte einzurichten."
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fi
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if [ -z "${UUID}" ]; then
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echo "Keine Backupplatte angegeben."
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exit 1
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fi
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if [ ! -e "/dev/disk/by-uuid/${UUID}" ]; then
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echo "Bitte Backupfestplatte anschliessen."
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exit 1
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fi
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for argval in "$@"
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do
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case "${argval}" in
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power|poweroff|p)
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poweroff=y
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;;
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help|-h|--help|h)
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fhelp
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exit
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;;
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update)
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update=y
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;;
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passwd)
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passwd=y
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;;
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esac
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done
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if [ -e /tmp/backup ]; then
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echo "Es läuft schon ein Backupvorgang oder wurde nicht richtig beendet."
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echo "Bei letzterem: 'sudo rm -rf /tmp/backup'"
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exit 1
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fi
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touch /tmp/backup
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if [[ "${passwd}" == "y" ]]; then
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cryptsetup luksChangeKey "/dev/disk/by-uuid/${UUID}"
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rm -rf /tmp/backup
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exit 0
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fi
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function finish {
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sync
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if [ "${poweroff}" = "y" ]; then
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shutdown -h now
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fi
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sleep 4
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umount "${ziel}"
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echo " "
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echo " "
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if [[ "${MOUNTEDBY}" == "script" ]]; then
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cryptsetup close "luks-${UUID}"
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echo "Festplatte kann nun sicher entfernt werden."
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elif [[ "${MOUNTEDBY}" == "gnome" ]]; then
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echo "Festplatte bitte mit der grafischen Oberflaeche auswerfen (wie ein USB-Stick)"
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echo ""
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echo "oder:"
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echo "sudo umount /dev/mapper/luks-${UUID}"
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echo "sudo cryptsetup close luks-${UUID}"
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echo ""
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fi
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rm -rf /tmp/backup
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echo "FERTIG"
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}
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trap finish EXIT
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if [ ! $(mountpoint -q -x "/dev/mapper/luks-${UUID}") ]; then
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if ! cryptsetup open UUID="${UUID}" "luks-${UUID}"; then
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echo "Konnte /dev/disk/by-uuid/${UUID} nicht öffnen."
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exit
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fi
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MOUNTEDBY="script"
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else
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MOUNTEDBY="gnome"
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fi
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if ! mount "/dev/mapper/luks-${UUID}" "${ziel}"; then
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echo "Konnte /dev/mapper/luks-${UUID} in ${ziel} nicht mounten."
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exit
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fi
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if mountpoint -q /var/lib/backup/quelle/bootfs; then
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mkdir -p "/var/lib/backup/ziel/void/bootfs"
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backupbootfs="backupbootfs"
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fi
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mkdir -p "/var/lib/backup/ziel/void/{rootfs,homefs}"
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for t in backuphomefs backuprootfs "${backupbootfs}"; do
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if [[ "${t}" ]]; then
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if ! btrbk --config="${cfg}" --progress --quiet run "${t}"; then
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btrbk --config="${cfg}" --progress --quiet clean
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echo "Wegen Fehler nicht herunterfahren."
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poweroff=n
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fi
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fi
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done
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#if [[ "${update}" = "y" ]]; then
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# if command -v voidupdate >/dev/null; then
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# if ! voidupdate; then
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# echo "UPDATE FAILED, nicht runterfahren"
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# poweroff=n
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# fi
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# else
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# if ! apt-get -y -q upgrade; then
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# echo "UPDATE FAILED, nicht runterfahren"
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# poweroff=n
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# fi
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# fi
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#fi
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