85 lines
2.3 KiB
Bash
85 lines
2.3 KiB
Bash
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#!/bin/bash
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###########################################################
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### Utility & Common Functions
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###########################################################
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function is_bin_in_path {
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builtin type -P "$1" &>/dev/null
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}
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###########################################################
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### BACKUP and RESTORE FUNCTIONS
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###########################################################
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#dumpPartitions() {
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backup_partitions() {
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local rootPart rootDisk
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rootPart="$(findmnt -no SOURCE / | sed -E 's/\[.*\]$//')"
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rootDisk="/dev/$(lsblk -no pkname "$rootPart" | head -n1)"
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sfdisk --dump "$rootDisk" > "${restoreDir}/sfdisk.dump"
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blkid -o export "$rootPart" > "${restoreDir}/blkid.dump"
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btrfs subvolume list -p / > "${restoreDir}/btrfs.dump"
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mount | grep "$rootPart" > "${restoreDir}/mounts.dump"
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}
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#restorePartitions() {
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restore_partitions() {
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local rootPart rootDisk
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rootPart="$1"
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rootDisk="$2"
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if [[ -z "$rootDisk" || -z "$rootPart" ]]; then
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echo "ERROR, restorePartitions not supplied with rootDisk and/or rootPartition"
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exit 200
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fi
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# Restore Partition Table (without modification)
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sfdisk "$rootDisk" < "${restoreDir}/sfdisk.dump"
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# Restore UUIDs
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while read -r line; do
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if [[ $line == UUID=* ]]; then
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eval "$line"
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tune2fs "$rootPart" -U "$UUID"
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fi
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done < "${restoreDir}/blkid.dump"
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echo "Partition table and UUID information have been restored."
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}
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#restoreBtrFSSubvolumes() {
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restore_btrfs_subvolumes() {
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local rootBase subvolID subvolPath
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rootBase="$1"
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while read -r line; do
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# Extract the subvolume ID and Path
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subvolID="$(echo "$line" | awk '{print $2}')"
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subvolPath="$(echo "$line" | awk '{print $NF}')"
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# Restore the subvolume
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btrfs subvolume create "${rootBase}/${subvolPath}"
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done < "${restoreDir}/btrfs.dump"
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}
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#restoreBtrFSMounts() {
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restore_btfs_mounts() {
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local rootBase mountSource mountDest
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rootBase="$1"
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while read -r line; do
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# Extract mount source and destination
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mountSource="$(echo "$line" | awk '{print $1}')"
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mountDest="$(echo "$line" | awk '{print $3}')"
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# Mount the subvolume
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mount "$mountSource" "${rootBase}/${mountDest}"
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done < "$restoreDir/mounts.dump"
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}
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