Attachment 187996 Details for Bug 86388 – Backup of disk partitions layout

Backup of disk partitions layout

221.backup-gpart.sh (text/plain), 2.57 KB, created by Miroslav Lachman on 2017-11-14 17:17:48 UTC

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Creator: Miroslav Lachman

Created: 2017-11-14 17:17:48 UTC

Size: 2.57 KB

patch

obsolete

>#!/bin/sh
>
>## $Id: 221.backup-gpart.sh 58697be4119d 2017-10-03 03:09 +0200 lachman $
>## Created by: Miroslav Lachman <000.fbsd@quip.cz>
>
>## Backup of disk partitions layout, useful for gpart restore.
>## Data are stored on local filesystem, in /var/backup.
>## It is recommended to copy those files to off-site storage.
>
>
>## If there is a global system configuration file, suck it in.
>##
>if [ -r /etc/defaults/periodic.conf ]
>then
>	. /etc/defaults/periodic.conf
>	source_periodic_confs
>fi
>
>bak_dir=/var/backups
>
>rotate() {
>	base_name=$1
>	show_diff=$2
>	file="$bak_dir/$base_name"
>
>	if [ -f "${file}.bak" ] ; then
>		rc=0
>		if cmp -s "${file}.bak" "${file}.tmp"; then
>			rm "${file}.tmp"
>		else
>			rc=1
>			[ -n "$show_diff" ] && diff "${file}.bak" "${file}.tmp"
>			mv "${file}.bak" "${file}.bak2" || rc=3
>			mv "${file}.tmp" "${file}.bak" || rc=3
>		fi
>	else
>		rc=1
>		mv "${file}.tmp" "${file}.bak" || rc=3
>		[ -n "$show_diff" ] && cat "${file}.bak"
>	fi
>}
>
>case "$daily_backup_gpart_verbose" in
>	[Yy][Ee][Ss]) show="YES"
>esac
>
>case "$daily_backup_gpart_enable" in
>	[Yy][Ee][Ss])
>
>	echo ""
>	echo "Dump of kern.geom.conftxt:";
>	sysctl -n kern.geom.conftxt > "$bak_dir/kern.geom.conftxt.tmp"
>	rotate "kern.geom.conftxt" $show
>
>	gpart_devs=$(gpart show | awk '$1 == "=>" { print $4 }')
>	if [ -n "$daily_backup_gpart_exclude" ]; then
>		gpart_devs=$(echo ${gpart_devs} | grep -E -v "${daily_backup_gpart_exclude}")
>	fi
>
>	if [ -z "$gpart_devs"  ]; then
>		echo '$daily_backup_gpart_enable is set but no disk probed by kernel.' \
>		"perhaps NFS diskless client."
>		rc=2
>	else
>		echo ""
>		echo "Backup of partitions informations for:";
>
>		for d in ${gpart_devs}; do
>			echo "$d"
>			safe_name=$(echo "gpart.${d}" | tr -cs ".[:alnum:]\n" "_")
>			gpart backup "$d" > "$bak_dir/$safe_name.tmp"
>			rotate "$safe_name" $show
>		done
>
>		gpart_show=$(gpart show -p)
>		boot_part=$(echo "$gpart_show" | awk '$4 ~ /(bios|freebsd)-boot/ { print $3 }')
>		if [ -n "$boot_part" ]; then
>			echo ""
>			echo "Backup of boot partition content:"
>			for b in ${boot_part}; do
>				echo "$b"
>				safe_name=$(echo "boot.${b}" | tr -cs ".[:alnum:]\n" "_")
>				dd if="/dev/${b}" of="$bak_dir/$safe_name.tmp" 2> /dev/null
>				rotate "$safe_name"
>			done
>		fi
>
>		mbr_part=$(echo "$gpart_show" | awk '$1 == "=>" && $5 == "MBR" { print $4 }')
>		if [ -n "$mbr_part" ]; then
>			echo ""
>			echo "Backup of MBR record:"
>			for mb in ${mbr_part}; do
>				echo "$mb"
>				safe_name=$(echo "boot.${mb}" | tr -cs ".[:alnum:]\n" "_")
>				dd if="/dev/${mb}" of="$bak_dir/$safe_name.tmp" bs=512 count=1 2> /dev/null
>				rotate "$safe_name"
>			done
>		fi
>	fi
>	;;
>
>	*)  rc=0
>	;;
>esac
>
>exit $rc

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Attachments on bug 86388: 57233 | 187996 | 187997 | 187998