diff options
Diffstat (limited to 'meta/recipes-core/initscripts/initscripts-1.0/checkroot.sh')
-rwxr-xr-x | meta/recipes-core/initscripts/initscripts-1.0/checkroot.sh | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/meta/recipes-core/initscripts/initscripts-1.0/checkroot.sh b/meta/recipes-core/initscripts/initscripts-1.0/checkroot.sh new file mode 100755 index 0000000000..dfee2afaad --- /dev/null +++ b/meta/recipes-core/initscripts/initscripts-1.0/checkroot.sh | |||
@@ -0,0 +1,148 @@ | |||
1 | #!/bin/sh | ||
2 | ### BEGIN INIT INFO | ||
3 | # Provides: checkroot | ||
4 | # Required-Start: udev | ||
5 | # Required-Stop: | ||
6 | # Default-Start: S | ||
7 | # Default-Stop: | ||
8 | # Short-Description: Check to root file system. | ||
9 | ### END INIT INFO | ||
10 | |||
11 | . /etc/default/rcS | ||
12 | |||
13 | # | ||
14 | # Set SULOGIN in /etc/default/rcS to yes if you want a sulogin to be spawned | ||
15 | # from this script *before anything else* with a timeout, like SCO does. | ||
16 | # | ||
17 | test "$SULOGIN" = yes && sulogin -t 30 $CONSOLE | ||
18 | |||
19 | # | ||
20 | # Read /etc/fstab. | ||
21 | # | ||
22 | exec 9< /etc/fstab | ||
23 | rootmode=rw | ||
24 | rootopts=rw | ||
25 | rootcheck=$ENABLE_ROOTFS_FSCK | ||
26 | swap_on_md=no | ||
27 | devfs= | ||
28 | while read fs mnt type opts dump pass junk <&9 | ||
29 | do | ||
30 | case "$fs" in | ||
31 | ""|\#*) | ||
32 | continue; | ||
33 | ;; | ||
34 | /dev/md*) | ||
35 | # Swap on md device. | ||
36 | test "$type" = swap && swap_on_md=yes | ||
37 | ;; | ||
38 | /dev/*) | ||
39 | ;; | ||
40 | *) | ||
41 | # Might be a swapfile. | ||
42 | test "$type" = swap && swap_on_md=yes | ||
43 | ;; | ||
44 | esac | ||
45 | test "$type" = devfs && devfs="$fs" | ||
46 | test "$mnt" != / && continue | ||
47 | rootopts="$opts" | ||
48 | test "$pass" = 0 -o "$pass" = "" && rootcheck=no | ||
49 | case "$opts" in | ||
50 | ro|ro,*|*,ro|*,ro,*) | ||
51 | rootmode=ro | ||
52 | ;; | ||
53 | esac | ||
54 | done | ||
55 | exec 0>&9 9>&- | ||
56 | |||
57 | # Check for conflicting configurations | ||
58 | if [ "$rootmode" = "ro" -a "$ROOTFS_READ_ONLY" = "no" ] || \ | ||
59 | [ "$rootmode" = "rw" -a "$ROOTFS_READ_ONLY" = "yes" ]; then | ||
60 | echo "" | ||
61 | echo "WARN: conflicting configurations in /etc/fstab and /etc/default/rcS" | ||
62 | echo " regarding the writability of rootfs. Please fix one of them." | ||
63 | echo "" | ||
64 | fi | ||
65 | |||
66 | |||
67 | # | ||
68 | # Activate the swap device(s) in /etc/fstab. This needs to be done | ||
69 | # before fsck, since fsck can be quite memory-hungry. | ||
70 | # | ||
71 | test "$VERBOSE" != no && echo "Activating swap" | ||
72 | swapon -a 2> /dev/null | ||
73 | |||
74 | # | ||
75 | # Check the root filesystem. | ||
76 | # | ||
77 | if test -f /fastboot || test $rootcheck = no | ||
78 | then | ||
79 | test $rootcheck = yes && echo "Fast boot, no filesystem check" | ||
80 | else | ||
81 | # | ||
82 | # Ensure that root is quiescent and read-only before fsck'ing. | ||
83 | # | ||
84 | mount -n -o remount,ro / | ||
85 | if test $? = 0 | ||
86 | then | ||
87 | if test -f /forcefsck | ||
88 | then | ||
89 | force="-f" | ||
90 | else | ||
91 | force="" | ||
92 | fi | ||
93 | if test "$FSCKFIX" = yes | ||
94 | then | ||
95 | fix="-y" | ||
96 | else | ||
97 | fix="-a" | ||
98 | fi | ||
99 | spinner="-C" | ||
100 | case "$TERM" in | ||
101 | dumb|network|unknown|"") spinner="" ;; | ||
102 | esac | ||
103 | test `uname -m` = s390 && spinner="" # This should go away | ||
104 | test "$VERBOSE" != no && echo "Checking root filesystem..." | ||
105 | fsck $spinner $force $fix / | ||
106 | # | ||
107 | # If there was a failure, drop into single-user mode. | ||
108 | # | ||
109 | # NOTE: "failure" is defined as exiting with a return code of | ||
110 | # 2 or larger. A return code of 1 indicates that filesystem | ||
111 | # errors were corrected but that the boot may proceed. | ||
112 | # | ||
113 | if test "$?" -gt 1 | ||
114 | then | ||
115 | # Surprise! Re-directing from a HERE document (as in | ||
116 | # "cat << EOF") won't work, because the root is read-only. | ||
117 | echo | ||
118 | echo "fsck failed. Please repair manually and reboot. Please note" | ||
119 | echo "that the root filesystem is currently mounted read-only. To" | ||
120 | echo "remount it read-write:" | ||
121 | echo | ||
122 | echo " # mount -n -o remount,rw /" | ||
123 | echo | ||
124 | echo "CONTROL-D will exit from this shell and REBOOT the system." | ||
125 | echo | ||
126 | # Start a single user shell on the console | ||
127 | /sbin/sulogin $CONSOLE | ||
128 | reboot -f | ||
129 | fi | ||
130 | else | ||
131 | echo "*** ERROR! Cannot fsck root fs because it is not mounted read-only!" | ||
132 | echo | ||
133 | fi | ||
134 | fi | ||
135 | |||
136 | # | ||
137 | # If the root filesystem was not marked as read-only in /etc/fstab, | ||
138 | # remount the rootfs rw but do not try to change mtab because it | ||
139 | # is on a ro fs until the remount succeeded. Then clean up old mtabs | ||
140 | # and finally write the new mtab. | ||
141 | # | ||
142 | mount -n -o remount,$rootmode / | ||
143 | if test "$rootmode" = rw | ||
144 | then | ||
145 | ln -sf /proc/mounts /dev/mtab | ||
146 | fi | ||
147 | |||
148 | : exit 0 | ||