103 lines
3.1 KiB
Bash
Executable file
103 lines
3.1 KiB
Bash
Executable file
#!/bin/bash
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set -ex
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if [[ $EUID -ne 0 ]]; then
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echo "This script must be run as root" 1>&2
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sudo $0 $1 $2 $3 $4 $5 $6 $7 $8 $9
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exit 0
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fi
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echo "Als root Angemeldet"
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if [ "make" == "$1" ]; then
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while (( "$(expr $# - 1)" ))
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do
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pfad="${2}"
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echo `date "+%Y%m%d-%H%M%S"` > /run/btrfs-root/__current/${pfad}/SNAPSHOT
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echo "BACKUP" >> /run/btrfs-root/__current/${pfad}/SNAPSHOT
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#only root for the fstab
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if [ "${pfad}" == "ROOT" ]; then
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sed "s|__current/${pfad}|__snapshot/${pfad}@`head -n 1 /run/btrfs-root/__current/${pfad}/SNAPSHOT`|g;" /etc/fstab.example > /etc/fstab
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rootsnapshot="y"
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fi
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mkdir -p /run/btrfs-root/__snapshot/${pfad%/*}
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btrfs subvolume snapshot /run/btrfs-root/__current/${pfad} /run/btrfs-root/__snapshot/${pfad}@`head -n 1 /run/btrfs-root/__current/${pfad}/SNAPSHOT`
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#btrfs subvolume snapshot -r /run/btrfs-root/__current/${pfad} /run/btrfs-root/__snapshot/${pfad}@`head -n 1 /run/btrfs-root/__current/${pfad}/SNAPSHOT`
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if ! [ "${pfad}" == "ROOT" ]; then
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rm /run/btrfs-root/__current/${pfad}/SNAPSHOT
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fi
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shift
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done
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#reset-fstab
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if [ "${rootsnapshot}" == "y" ]; then
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cp /etc/fstab.example /etc/fstab
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fi
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#stable-snapshot-boot
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if [ -f "/boot/arch-uefi.conf.example" ]; then
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cp "$(echo $(find /boot/ -name "initramfs*.img") | cut -d" " -f2)" /boot/initramfs-linux-stable.img
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cp "$(echo $(find /boot/ -name "vmlinuz*") | cut -d" " -f1)" /boot/vmlinuz-stable
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kernel1="$(echo $(find /boot/ -name "initramfs*-stable.img") | cut -d" " -f2)"
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linuz1="$(find /boot/ -name "vmlinuz*-stable")"
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kernel="${kernel1#/*/}"
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linuz="${linuz1#/*/}"
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sed "s|%LINUZ%|${linuz}|g;
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s|%KERNEL%|${kernel}|g;
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s|rootflags=subvol=__current/ROOT|rootflags=subvol=__snapshot/${pfad}@`head -n 1 /run/btrfs-root/__current/${pfad}/SNAPSHOT`|g" /boot/arch-uefi.conf.example > /boot/loader/entries/arch-uefi-stable.conf
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if [ -f /run/btrfs-root/__current/ROOT/SNAPSHOT ]; then
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rm /run/btrfs-root/__current/ROOT/SNAPSHOT
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fi
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fi
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elif [ "restore" == "$1" ]; then
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while (( "$(expr $# - 1)" ))
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do
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pfad="${2}"
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if [ -d /run/btrfs-root/__current/${pfad/@*}.old ]; then
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btrfs subvolume delete /run/btrfs-root/__current/${pfad/@*}.old
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fi
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mv /run/btrfs-root/__current/${pfad/@*} /run/btrfs-root/__current/${pfad/@*}.old
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btrfs subvolume snapshot /run/btrfs-root/__snapshot/${pfad} /run/btrfs-root/__current/${pfad/@*}
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shift
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done
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btrfs subvolume list -p /
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#echo "Bitte noch die /etc/fstab editieren und die neuen IDs eintragen!!!"
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echo "Bitte damit die Änderungen wirksam werden das System neustarten!!!"
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#reboot
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else
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echo "bash ./snapshot.sh PARAMETER PFAD"
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echo "Parameters: make restore"
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echo "make ROOT home opt var/cache/pacman/pkg"
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echo "restore ROOT@20170725-235544 home@20170725-235544 opt@20170725-235544 var/cache/pacman/pkg@20170725-235544"
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btrfs subvolume list -p /
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fi
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