source: scripts/chroot.bash @ 2797

#!/bin/bash
# Bash script to chroot into Parsix roots
# Coyright 2005-2008 Alan Baghumian / GNU/GPL

usage()
{
  echo "Usage: chroot <32|64>"
  exit
}

if [ -z "${1}" ]; then
   usage
fi

if [ "${1}" != "32" -a "${1}" != "64" ]; then
    echo "Invalid arch. Usage: chroot <32|64>"
    exit
fi

# mount needed file systems
mount -o bind /proc source${1}/PARSIX/proc
mount -o bind /dev/pts source${1}/PARSIX/dev/pts

chroot source${1}/PARSIX/

# clean-up
to_purge=`chroot source${1}/PARSIX dpkg -l | grep ^rc | awk '{print $2}'`
is_orphan=`chroot source${1}/PARSIX deborphan`

if [ ! -z "${to_purge}" ]; then
    chroot source${1}/PARSIX echo "${to_purge}" | xargs dpkg -P
fi

if [ ! -z "${is_orphan}" ]; then
    chroot source${1}/PARSIX echo "${is_orphan}" | xargs dpkg -P
fi

# reset logs
rm source${1}/PARSIX/var/log/dpkg.log &>/dev/null
rm source${1}/PARSIX/var/log/scrollkeeper.log &>/dev/null

touch source${1}/PARSIX/var/log/dpkg.log &>/dev/null
touch source${1}/PARSIX/var/log/scrollkeeper.log &>/dev/null

chroot source${1}/PARSIX chmod 640 /var/log/dpkg.log
chroot source${1}/PARSIX chown root:adm /var/log/dpkg.log

chroot source${1}/PARSIX chmod 644 /var/log/scrollkeeper.log
chroot source${1}/PARSIX chown root:root /var/log/scrollkeeper.log

# unmount needed file systems
umount -f source${1}/PARSIX/proc
umount -f source${1}/PARSIX/dev/pts