118 lines
2.6 KiB
Bash
118 lines
2.6 KiB
Bash
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#!/bin/bash
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#
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# (C) Stefan Brand <seiichiro@seiichiro0185.org> 2008
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#
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# sysbackup-tar.sh: little script to backup your running system into a tar-file
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## Configuration
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# SYSMOUNTS - this array should include all system partitions. If your system for example has
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# /, /boot, /usr and /opt on different partitions it should look like this:
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# SYSMOUNTS=( "/" "/boot" "/usr" "/opt" )
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# Please note: partitions need to be given in correct order, meaning / has always to be the first
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# If you for example have /usr and /usr/local on seperate partitions you will have to give / first,
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# then /usr and last /usr/local
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SYSMOUNTS=( "/" "/boot" )
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# DOMOUNT - this array should include all partitions that are not mountet by default, like /boot
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# Syntax is the same as for SYSMOUNTS
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DOMOUNTS=( "/boot" )
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# EXCLUDES - this array contains patterns for files/directories that should not be included in
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# the backup. An example for this is tmp/*
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EXCLUDES=( "tmp/*" "var/cache/pacman/*" )
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## End Configuration
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## Program -- NO CHANGES ARE NEEDED AFTER THIS LINE --
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_BASEDIR="$1"
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_OPTNAME="${2:-backup}"
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## Checks
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if [ $UID -ne 0 ]
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then
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echo "You have to be root to run this!"
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echo "exiting..."
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exit 1
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fi
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if [[ "${_BASEDIR}" == "" || "${_BASEDIR}" == "--help" || "${_BASEDIR}" == "-h" || "${_BASEDIR}" == "-?" ]]
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then
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echo "USAGE: $0 <backup dir> [<backup name>]"
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echo "exiting"
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exit 2
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fi
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if [ ! -d "${_BASEDIR}" ]
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then
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echo "ERROR: No valid Backup directory given!"
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echo "USAGE: $0 <backup dir> [<backup name>]"
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echo "exiting"
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exit 3
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fi
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## Functions
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function prepare()
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{
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mkdir /tmp/backup$$
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for index in $(seq 0 $(( ${#DOMOUNTS[@]} - 1 )))
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do
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mount "${DOMOUNTS[$index]}"
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done
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for index in $(seq 0 $(( ${#SYSMOUNTS[@]} - 1 )))
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do
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mount -o ro,bind "${SYSMOUNTS[$index]}" "/tmp/backup$$${SYSMOUNTS[$index]}"
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done
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for index in $(seq 0 $(( ${#EXCLUDES[@]} - 1 )))
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do
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echo "${EXCLUDES[$index]}" >> /tmp/excludes$$
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done
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BACKUPFILE=$(echo "${_BASEDIR}/${_OPTNAME}-system-$(date +%Y%m%d).tar.gz" | sed -e "s#//#/#g")
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}
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function dobackup()
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{
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cd /tmp/backup$$/
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tar -cvzpf "${BACKUPFILE}" -X /tmp/excludes$$ *
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}
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function cleanup()
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{
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cd /
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for index in $(seq $(( ${#SYSMOUNTS[@]} - 1 )) -1 0)
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do
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UMOUNT=$(echo "/tmp/backup$$${SYSMOUNTS[$index]}" | sed -e 's#/$##')
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umount "$UMOUNT"
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done
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for index in $(seq $(( ${#DOMOUNTS[@]} - 1 )) -1 0)
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do
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umount "${DOMOUNTS[$index]}"
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done
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rmdir /tmp/backup$$
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rm -f /tmp/excludes$$
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}
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## Main Program
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trap cleanup TERM INT
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prepare
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dobackup
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sleep 3
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cleanup
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exit 0
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