aboutsummaryrefslogtreecommitdiff
path: root/init.d/checkroot
blob: 72a5938818822bfbce78de94945453ac7c5a2dbc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
#!/sbin/runscript
# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

description="Check the root filesystem according to /etc/fstab for errors \
and optionally repair them."

do_mtab() {
	# Don't create mtab if /etc is readonly
	if ! echo 2>/dev/null >/etc/mtab ; then
		ewarn "Skipping /etc/mtab initialization" "(ro root?)"
		return 0
	fi

	# Add the entry for / to mtab
	mount -f /

	# Don't list root more than once
	grep -v "^[^ ]* / " /proc/mounts >> /etc/mtab

	# Now make sure /etc/mtab have additional info (gid, etc) in there
	local mnt= mnts="$(mountinfo | sed -e "s/^/'/g" -e "s/$/'/g")"
	eval set -- ${mnts}
	for mnt in "$@" ; do
		if fstabinfo --mountcmd "${mnt}" >/dev/null ; then
			mount -f -o remount "${mnt}"
		fi
	done

	# Remove stale backups
	rm -f /etc/mtab~ /etc/mtab~~
}

do_fsck() {
	local retval=0 opts=
	case "${RC_UNAME}" in
		FreeBSD) opts="-F";;
		Linux) opts="-T -C0";;
	esac

	# Don't bother doing a fsck on these
	if [ -n "${CDBOOT}" ] || is_net_fs / || is_union_fs / ; then
		return 0
	fi

	if echo 2>/dev/null >/.test.$$ ; then
		einfo "root filesystem is mounted read-write - skipping"
		rm -f /.test.$$
		return 0
	fi

	if [ -e /forcefsck ] || get_bootparam "forcefsck" ; then
		ebegin "Checking root filesystem (full fsck forced)"
		fsck ${opts} -f -n /
		# /forcefsck isn't deleted because checkfs needs it.
		# it'll be deleted in that script.
		retval=$?
	else
		# Obey the fs_passno setting for / (see fstab(5))
		local pass=$(fstabinfo --passno /)
		if [ ${pass:-0} != "0" ] ; then
			ebegin "Checking root filesystem"
			fsck ${opts} -p /
			retval=$?
		else
			ebegin "Skipping root filesystem check" "(fstab's passno == 0)"
			retval=0
		fi
	fi

	if [ ${retval} -eq 0 ] ; then
		eend 0
	elif [ ${retval} -eq 1 ] ; then
		ewend 1 "Filesystem repaired"
		retval=0
	elif [ ${retval} -eq 8 ] ; then
		ewend 1 $"Operational error, continuing"
		retval=0
	elif [ ${retval} -eq 2 -o ${retval} -eq 3 ] ; then
		ewend 1 "Filesystem repaired, but reboot needed!"
		if [ "${RC_FORCE_AUTO}" != "yes" ] ; then
			printf "\a"; sleep 1; printf "\a"; sleep 1
			printf "\a"; sleep 1; printf "\a"; sleep 1
			ewarn "Rebooting in 10 seconds ..."
			sleep 10
		fi
		einfo "Rebooting"
		reboot -f
	else
		if [ "${RC_FORCE_AUTO}" = "yes" ] ; then
			eend 2 "Rerunning fsck in force mode"
			fsck ${opts} -y /
			retval=$?
		else
			eend 2 "Filesystem couldn't be fixed :("
			exec rc-abort || exit 1
		fi
		if [ ${retval} != "0" ] ; then
			einfo "Unmounting filesystems"
			if [ "${RC_UNAME}" = "Linux" ] ; then
				mount -a -o remount,ro /
			else
				mount -u -o ro /
			fi
			einfo "Rebooting"
			reboot -f
		fi
	fi

	ebegin "Remounting root filesystem read/write"
	if [ "${RC_UNAME}" = "Linux" ] ; then
		mount -n -o remount,rw /
	else
		mount -u -o rw /
	fi
	eend $? "Root filesystem could not be mounted read/write :("
}

start() {
	do_fsck || return 1

	# Only Linux has mtab
	[ "${RC_UNAME}" = "Linux" ] && do_mtab

	# If the user's /dev/null or /dev/console are missing, we 
	# should help them out and explain how to rectify the situation
	if [ ! -c /dev/null -o ! -c /dev/console ] ; then
		if [ -e /usr/share/baselayout/issue.devfix ] ; then
			# Backup current /etc/issue
			if [ -e /etc/issue -a ! -e /etc/issue.devfix ] ; then
				mv -f /etc/issue /etc/issue.devfix
			fi
			cp -f /usr/share/baselayout/issue.devfix /etc/issue
		fi
	fi

	# We got here, so return 0
	return 0
}

# vim: set ts=4 :