mirror of
https://github.com/erenfro/systemrescue-backup.git
synced 2024-11-14 22:28:58 -05:00
340 lines
11 KiB
Text
340 lines
11 KiB
Text
|
#!/bin/bash
|
||
|
|
|
||
|
|
# Global variables for restore directory
|
||
|
|
restoreDir="/etc/restore"
|
||
|
|
backupDir="${restoreDir}/data"
|
||
|
|
|
||
|
|
# Function to create backup directory
|
||
|
|
create_backup_dir() {
|
||
|
|
echo "Creating backup directory at ${backupDir}..."
|
||
|
|
mkdir -p "$backupDir"
|
||
|
|
echo "Backup directory created."
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to backup a partition table
|
||
|
|
backup_partition() {
|
||
|
|
local device="$1"
|
||
|
|
|
||
|
|
echo "Backing up partition table for $device..."
|
||
|
|
sfdisk --dump "$device" > "${backupDir}/partition_table_$(basename "$device").backup"
|
||
|
|
echo "Partition table backed up to ${backupDir}/partition_table_$(basename "$device").backup"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to backup filesystem UUID
|
||
|
|
backup_uuid() {
|
||
|
|
local partition="$1"
|
||
|
|
|
||
|
|
echo "Backing up UUID for $partition..."
|
||
|
|
blkid "$partition" | awk '{print $2}' > "${backupDir}/uuid_$(basename "$partition").backup"
|
||
|
|
echo "UUID backed up to ${backupDir}/uuid_$(basename "$partition").backup"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to backup Btrfs subvolumes, excluding snapshots and nested subvolumes
|
||
|
|
backup_btrfs_subvolumes() {
|
||
|
|
local mount_point="$1"
|
||
|
|
local subvol_path
|
||
|
|
local subvol_name
|
||
|
|
|
||
|
|
echo "Backing up Btrfs subvolumes from $mount_point to ${backupDir}..."
|
||
|
|
mkdir -p "${backupDir}/btrfs_subvolumes"
|
||
|
|
btrfs subvolume list -p "$mount_point" | while read -r line; do
|
||
|
|
subvol_path=$(echo "$line" | awk '{print $NF}')
|
||
|
|
subvol_name=$(basename "$subvol_path")
|
||
|
|
|
||
|
|
# Skip snapshots and subvolumes under .snapshots
|
||
|
|
if [[ "$subvol_path" == *.snapshots/* || "$subvol_path" == ".snapshots" ]]; then
|
||
|
|
continue
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "Backing up subvolume $subvol_name"
|
||
|
|
btrfs subvolume snapshot "$mount_point/$subvol_path" "${backupDir}/btrfs_subvolumes/$subvol_name"
|
||
|
|
done
|
||
|
|
echo "Btrfs subvolumes backed up to ${backupDir}/btrfs_subvolumes"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to backup current mount points and options
|
||
|
|
backup_mount_points() {
|
||
|
|
echo "Backing up current mount points and options..."
|
||
|
|
mount | grep "^/dev" > "${backupDir}/mount_points.backup"
|
||
|
|
echo "Mount points backed up to ${backupDir}/mount_points.backup"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to restore Btrfs subvolumes to /mnt/restore, excluding snapshots and nested subvolumes
|
||
|
|
restore_btrfs_subvolumes() {
|
||
|
|
local mount_point="$1"
|
||
|
|
local subvol_snapshot
|
||
|
|
local subvol_name
|
||
|
|
|
||
|
|
echo "Restoring Btrfs subvolumes from ${backupDir}/btrfs_subvolumes to /mnt/restore/$mount_point..."
|
||
|
|
mkdir -p "/mnt/restore$mount_point"
|
||
|
|
for subvol_snapshot in "${backupDir}/btrfs_subvolumes"/*; do
|
||
|
|
if [[ -d "$subvol_snapshot" ]]; then
|
||
|
|
subvol_name=$(basename "$subvol_snapshot")
|
||
|
|
|
||
|
|
# Restore subvolume to the mount point
|
||
|
|
echo "Restoring subvolume $subvol_name"
|
||
|
|
btrfs subvolume snapshot "$subvol_snapshot" "/mnt/restore$mount_point/$subvol_name"
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
echo "Btrfs subvolumes restored to /mnt/restore$mount_point"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to restore mount points to /mnt/restore, supporting Btrfs subvolumes
|
||
|
|
restore_mount_points() {
|
||
|
|
local original_device
|
||
|
|
local device
|
||
|
|
local mount_point
|
||
|
|
local mount_opts
|
||
|
|
local subvol
|
||
|
|
local fs_type
|
||
|
|
|
||
|
|
if [[ -f "${backupDir}/mount_points.backup" ]]; then
|
||
|
|
echo "Restoring mount points from ${backupDir}/mount_points.backup to /mnt/restore..."
|
||
|
|
mkdir -p /mnt/restore
|
||
|
|
while IFS= read -r line; do
|
||
|
|
original_device=$(echo "$line" | awk '{print $1}')
|
||
|
|
mount_point=$(echo "$line" | awk '{print $3}')
|
||
|
|
mount_opts=$(echo "$line" | awk -F' ' '{for(i=4;i<=NF;i++){print $i}}' | tr -d '()')
|
||
|
|
|
||
|
|
# Extract and remove subvol and subvolid from mount options
|
||
|
|
subvol=$(echo "$mount_opts" | grep -oP 'subvol=\K[^,]*')
|
||
|
|
mount_opts=$(echo "$mount_opts" | sed -e 's/subvol=[^,]*,//g' -e 's/subvolid=[^,]*,//g')
|
||
|
|
|
||
|
|
# Rename device if specified
|
||
|
|
device="$original_device"
|
||
|
|
if [[ -n "${rename_map[$device]}" ]]; then
|
||
|
|
device="${rename_map[$device]}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
mkdir -p "/mnt/restore$mount_point"
|
||
|
|
fs_type=$(blkid -o value -s TYPE "$device")
|
||
|
|
|
||
|
|
if [[ "$fs_type" == "btrfs" ]]; then
|
||
|
|
if [[ -n "$subvol" ]]; then
|
||
|
|
echo "Mounting Btrfs subvolume $subvol on /mnt/restore$mount_point"
|
||
|
|
mount -t btrfs -o subvol="$subvol,$mount_opts" "$device" "/mnt/restore$mount_point"
|
||
|
|
else
|
||
|
|
echo "Mounting Btrfs volume $device on /mnt/restore$mount_point"
|
||
|
|
mount -t btrfs -o "$mount_opts" "$device" "/mnt/restore$mount_point"
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
echo "Mounting $device on /mnt/restore$mount_point with options $mount_opts"
|
||
|
|
mount -o "$mount_opts" "$device" "/mnt/restore$mount_point"
|
||
|
|
fi
|
||
|
|
done < "${backupDir}/mount_points.backup"
|
||
|
|
echo "Mount points restored to /mnt/restore."
|
||
|
|
else
|
||
|
|
echo "Backup file ${backupDir}/mount_points.backup not found."
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to restore a partition table with optional device renaming
|
||
|
|
restore_partition() {
|
||
|
|
local device="$1"
|
||
|
|
local original_device="$device"
|
||
|
|
local backup_file
|
||
|
|
local temp_file
|
||
|
|
|
||
|
|
# Check if the device should be renamed
|
||
|
|
if [[ -n "${rename_map[$device]}" ]]; then
|
||
|
|
echo "Renaming device $device to ${rename_map[$device]}"
|
||
|
|
device="${rename_map[$device]}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
backup_file="${backupDir}/partition_table_$(basename "$original_device").backup"
|
||
|
|
if [[ ! -f "$backup_file" ]]; then
|
||
|
|
echo "Backup file $backup_file not found."
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Create a temporary file for the modified backup
|
||
|
|
temp_file=$(mktemp)
|
||
|
|
trap 'rm -f "$temp_file"' EXIT
|
||
|
|
|
||
|
|
# Modify the backup file to use the new device name
|
||
|
|
sed "s|$original_device|$device|g" "$backup_file" > "$temp_file"
|
||
|
|
|
||
|
|
echo "Restoring partition table for $device..."
|
||
|
|
sfdisk "$device" < "$temp_file"
|
||
|
|
echo "Partition table restored from $temp_file"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to restore filesystem UUID with optional device renaming
|
||
|
|
restore_uuid() {
|
||
|
|
local partition="$1"
|
||
|
|
local original_partition="$partition"
|
||
|
|
local uuid
|
||
|
|
|
||
|
|
# Check if the partition should be renamed
|
||
|
|
if [[ -n "${rename_map[$partition]}" ]]; then
|
||
|
|
partition="${rename_map[$partition]}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -f "${backupDir}/uuid_$(basename "$original_partition").backup" ]]; then
|
||
|
|
uuid=$(cut -d'=' -f2 < "${backupDir}/uuid_$(basename "$original_partition").backup" | tr -d '"')
|
||
|
|
echo "Restoring UUID $uuid to $partition..."
|
||
|
|
|
||
|
|
case "$(blkid -o value -s TYPE "$partition")" in
|
||
|
|
ext4)
|
||
|
|
tune2fs -U "$uuid" "$partition"
|
||
|
|
;;
|
||
|
|
xfs)
|
||
|
|
xfs_admin -U "$uuid" "$partition"
|
||
|
|
;;
|
||
|
|
btrfs)
|
||
|
|
btrfstune -u "$uuid" "$partition"
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "Unsupported filesystem type."
|
||
|
|
return 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
echo "UUID restored."
|
||
|
|
else
|
||
|
|
echo "Backup file ${backupDir}/uuid_$(basename "$original_partition").backup not found."
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to handle all backup operations
|
||
|
|
backup_all_partitions() {
|
||
|
|
echo "Backing up all partitions..."
|
||
|
|
backup_mount_points
|
||
|
|
|
||
|
|
while IFS= read -r line; do
|
||
|
|
local device
|
||
|
|
device=$(echo "$line" | awk '{print $1}')
|
||
|
|
backup_partition "$device"
|
||
|
|
backup_uuid "$device"
|
||
|
|
done < "${backupDir}/mount_points.backup"
|
||
|
|
|
||
|
|
backup_btrfs_subvolumes "/mnt"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Function to restore all partitions and filesystems from backup files
|
||
|
|
restore_all() {
|
||
|
|
echo "Restoring all partitions and filesystems from backup..."
|
||
|
|
|
||
|
|
# Restore partition tables
|
||
|
|
while IFS= read -r line; do
|
||
|
|
local device
|
||
|
|
device=$(echo "$line" | awk '{print $1}')
|
||
|
|
# Rename device if specified
|
||
|
|
if [[ -n "${rename_map[$device]}" ]]; then
|
||
|
|
device="${rename_map[$device]}"
|
||
|
|
fi
|
||
|
|
restore_partition "$device"
|
||
|
|
done < "${backupDir}/mount_points.backup"
|
||
|
|
|
||
|
|
if [[ "$restore_uuid" == true ]]; then
|
||
|
|
while IFS= read -r line; do
|
||
|
|
local partition
|
||
|
|
partition=$(echo "$line" | awk '{print $1}')
|
||
|
|
# Rename partition if specified
|
||
|
|
if [[ -n "${rename_map[$partition]}" ]]; then
|
||
|
|
partition="${rename_map[$partition]}"
|
||
|
|
fi
|
||
|
|
restore_uuid "$partition"
|
||
|
|
done < "${backupDir}/mount_points.backup"
|
||
|
|
fi
|
||
|
|
|
||
|
|
restore_btrfs_subvolumes "/mnt/restore"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Main function to handle command-line arguments and invoke appropriate functions
|
||
|
|
main() {
|
||
|
|
local exclude_opts=()
|
||
|
|
local exclude_file
|
||
|
|
local rename_map=()
|
||
|
|
local restore_uuid=true
|
||
|
|
|
||
|
|
case "$1" in
|
||
|
|
backup)
|
||
|
|
shift
|
||
|
|
while [[ "$#" -gt 0 ]]; do
|
||
|
|
case "$1" in
|
||
|
|
--exclude)
|
||
|
|
shift
|
||
|
|
exclude_opts+=("$1")
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
--exclude-file)
|
||
|
|
shift
|
||
|
|
exclude_file="$1"
|
||
|
|
if [[ -f "$exclude_file" ]]; then
|
||
|
|
while IFS= read -r line; do
|
||
|
|
exclude_opts+=("$line")
|
||
|
|
done < "$exclude_file"
|
||
|
|
else
|
||
|
|
echo "Exclude file $exclude_file does not exist."
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "Usage: $0 backup [--exclude <pattern>]... [--exclude-file <file>]"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
create_backup_dir
|
||
|
|
backup_all_partitions
|
||
|
|
;;
|
||
|
|
|
||
|
|
restore)
|
||
|
|
shift
|
||
|
|
while [[ "$#" -gt 0 ]]; do
|
||
|
|
case "$1" in
|
||
|
|
--no-uuid)
|
||
|
|
restore_uuid=false
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
--exclude)
|
||
|
|
shift
|
||
|
|
exclude_opts+=("$1")
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
--exclude-file)
|
||
|
|
shift
|
||
|
|
exclude_file="$1"
|
||
|
|
if [[ -f "$exclude_file" ]]; then
|
||
|
|
while IFS= read -r line; do
|
||
|
|
exclude_opts+=("$line")
|
||
|
|
done < "$exclude_file"
|
||
|
|
else
|
||
|
|
echo "Exclude file $exclude_file does not exist."
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
--rename)
|
||
|
|
shift
|
||
|
|
local old_device="$1"
|
||
|
|
shift
|
||
|
|
local new_device="$1"
|
||
|
|
rename_map["$old_device"]="$new_device"
|
||
|
|
shift
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "Usage: $0 restore [--no-uuid] [--exclude <pattern>]... [--exclude-file <file>] [--rename <old_device> <new_device>]"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
restore_all
|
||
|
|
;;
|
||
|
|
|
||
|
|
*)
|
||
|
|
echo "Usage: $0 {backup|restore} [options]"
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
# Call the main function with all arguments
|
||
|
|
main "$@"
|