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Filename : fsck.btrfs
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#!/bin/sh -f
#
# Copyright (c) 2013 SUSE
#
# copied from fsck.xfs
# Copyright (c) 2006 Silicon Graphics, Inc.  All Rights Reserved.
#

# fsck.btrfs is a type of utility that should exist for any filesystem and is
# called during system setup when the corresponding /etc/fstab entries contain
# non-zero value for fs_passno. (See fstab(5) for more.)
#
# Traditional filesystems need to run their respective fsck utility in case the
# filesystem was not unmounted cleanly and the log needs to be replayed before
# mount. This is not needed for BTRFS. You should set fs_passno to 0.
#
# If you wish to check the consistency of a BTRFS filesystem or repair a
# damaged filesystem, see btrfs(8) subcommand 'check'. By default the
# filesystem consistency is checked, the repair mode is enabled via --repair
# option (use with care!).

AUTO=false
while getopts ":aApy" c
do
	case $c in
	a|A|p|y)	AUTO=true;;
	esac
done
shift $(($OPTIND - 1))
eval DEV=\${$#}
if [ ! -e $DEV ]; then
	echo "$0: $DEV does not exist"
	exit 8
fi
if ! $AUTO; then
	echo "If you wish to check the consistency of a BTRFS filesystem or"
	echo "repair a damaged filesystem, see btrfs(8) subcommand 'check'."
fi
exit 0