On Friday 06 Jun 2003 19:35, Mark Knecht wrote:
> Hi,
> I've got a number of 1394 hard drives. I'd like to set up some
> sort of a regular backup of my Gentoo box in the studio. Can someone
> recommend a tool that has an ebuild and will support backing up to a
> hard drive?
>
> I prefer a GUI based tool, or something very easy to remember how
> to use if it's command line based.
>
Jason Calabrese <[EMAIL PROTECTED]> posted a nice script here
recently. It uses tar and is based on a backup disk dedicated to
backups, big enough to hold several.
I was so impressed I got myself a 160GB disk and adapted the script as
follows. My complete backup (including Windows 98) is about 12GB so I
can get about 9 or 10 full backups on that disk and they only take an
hour on a cron job. Although the disk is nominally 160GB, when
formatted single partition the partition size is 127GB.
==================================================================
#! /bin/bash
# /usr/local/bin/backup
#######################
# Backup Script
#######################
# Jason Calabrese <[EMAIL PROTECTED]>
# modified by Peter Ruskin <[EMAIL PROTECTED]> 01-Jun-03
BACKUP_TO=/mnt/backup
FILE=$BACKUP_TO/`hostname|cut -f1 -d.`-`date +"%F-%H%M"`.tar
FILE_LIST=$BACKUP_TO/`hostname|cut -f1 -d.`-`date +"%F-%H%M"`.list
OLD_FILE=$BACKUP_TO/`hostname|cut -f1 -d.`-`date --date='9 days ago'
+"%F"`
EXCLUDE='--exclude /mnt/.init.d --exclude /mnt/backup --exclude
/mnt/cdrom --exclude /mnt/floppy --exclude /mnt/KROH-LIESE --exclude
/mnt/KROH-PETER --exclude /mnt/PENGUIN --exclude /proc --exclude
/usr/portage/distfiles'
echo " Mounting boot partition..."
mount /boot -o ro
echo
echo " Mounting backup disk..."
mount $BACKUP_TO
sleep 4
echo
echo " Removing old archives..."
echo
/bin/rm -f ${OLD_FILE}*.tar
/bin/rm -f ${OLD_FILE}*.list
echo " Performing backup - it'll be an hour or so..."
echo
/bin/tar -cpvvf $FILE / $EXCLUDE > $FILE_LIST
echo " Backup finished at `date +'%H:%M'`"
echo
USEDSPACE=$(du -h $BACKUP_TO | grep G | awk '{print $1}' | cut -f1 -dG)
FREESPACE=$(df | grep $BACKUP_TO | awk '{print $5}')
NUMBAKUPS=$(ls $BACKUP_TO/kroh-*.tar | wc -w | awk '{print $1}')
TOTALBLOCKS=$(cat /proc/partitions|grep
ide/host0/bus1/target0/lun0/part1 | awk '{print $3}')
CAPACITY=$(($TOTALBLOCKS/1024/1024))
SPACELEFT=$(($CAPACITY-$USEDSPACE))
AVSIZE=$(($USEDSPACE/$NUMBAKUPS))
ESTBKUPS=$(($CAJason Calabrese <[EMAIL PROTECTED]>PACITY/$AVSIZE))
echo " Capacity of backup partition: ${CAPACITY}GB"
echo
echo " Space occupied by backup partition: ${USEDSPACE}GB"
echo
echo " Space left on backup partition: ${SPACELEFT}GB"
echo
echo " Number of backups: $NUMBAKUPS"
echo
echo " Average size per backup: ${AVSIZE}GB"
echo
echo " Estimated total number of backups: $ESTBKUPS"
echo
echo " Unmounting boot and backup partitions..."
echo
/bin/umount -l /boot
/bin/umount -l $BACKUP_TO
echo " Spinning down backup disk..."
/sbin/hdparm -y /dev/hdc # spin down disk
# To restore a file, search for it in $FILE_LIST, e.g. etc/fstab, then:
# cd /
# tar -xpvf $FILE etc/fstab
--
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