A script to backup rootfs.

(%3)(21:40)(punk)~> sudo cat /root/bin/dumpdisk
#!/bin/sh

if [ $# -ne 1 -a $# -ne 2 ] || [ ! -b $1 ]; then
        echo "`basename $0` <destination(e.g. /dev/sdc)> [hostname]"
else
        _T=ext3
        umount ${1}1
        echo "`basename $0` on `date '+%Y_%m_%d'` to $1 $2" >> /root/bin/log && \
        dd if=/dev/zero of=$1 bs=1M count=1 && \
        sync && sync && sync && \
        parted $1 --script mklabel msdos && \
        parted $1 --script mkpart primary $_T 2048s 3932159s && \
        mkfs.$_T ${1}1 && mount ${1}1 /mnt && cd /mnt && \
        dump 0af - / | restore rf - && cd / && \
        if [ $# -eq 2 ]; then
                _T=`hostname`
                sed -i "s|dc_other_hostnames='$_T'|dc_other_hostnames='$2'|" /mnt/etc/exim4/update-exim4.conf.conf
                sed -i "s|$_T|$2|" /mnt/etc/hostname
                sed -i "s|127.0.0.1\tlocalhost $_T|127.0.0.1 localhost $2|" /mnt/etc/hosts
                sed -i "s|$_T|$2|" /mnt/etc/mailname
                sed -i "s|root:x:0:0:$_T root:/root:/bin/bash|root:x:0:0:$2 root:/root:/bin/bash|" /mnt/etc/passwd
                sed -i "s|root:x:0:0:$_T root:/root:/bin/bash|root:x:0:0:$2 root:/root:/bin/bash|" /mnt/etc/passwd-
                sed -i "s|interfaces = $_T|interfaces = $2|" /mnt/etc/samba/smb.conf
        fi && \
        sync && sync && sync && \
        umount /mnt && \
        tune2fs ${1}1 -U `blkid -s UUID -o value /dev/sda1` -L USBROOT && \
        sync && sync && sync && \
        echo "Done"
fi

#parted $1 --script mkpart primary $_T 2048s 3932159s && \
#parted $1 --script mkpart primary $_T 2048s -- -1 && \