# umount all directories {{{
umount_all() {
# make sure we don't leave any mounts - FAI doesn't remove them always
+ umount $CHROOT_OUTPUT/proc/sys/fs/binfmt_misc 2>/dev/null || /bin/true
umount $CHROOT_OUTPUT/proc 2>/dev/null || /bin/true
umount $CHROOT_OUTPUT/sys 2>/dev/null || /bin/true
umount $CHROOT_OUTPUT/dev/pts 2>/dev/null || /bin/true