diff options
Diffstat (limited to 'meta/files/overlayfs-etc-preinit.sh.in')
-rw-r--r-- | meta/files/overlayfs-etc-preinit.sh.in | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/meta/files/overlayfs-etc-preinit.sh.in b/meta/files/overlayfs-etc-preinit.sh.in new file mode 100644 index 0000000000..b05e3957a3 --- /dev/null +++ b/meta/files/overlayfs-etc-preinit.sh.in | |||
@@ -0,0 +1,52 @@ | |||
1 | #!/bin/sh | ||
2 | |||
3 | echo "PREINIT: Start" | ||
4 | |||
5 | PATH=/sbin:/bin:/usr/sbin:/usr/bin | ||
6 | if {CREATE_MOUNT_DIRS}; then | ||
7 | mount -o remount,rw / | ||
8 | |||
9 | mkdir -p /proc | ||
10 | mkdir -p /sys | ||
11 | mkdir -p /run | ||
12 | mkdir -p /var/run | ||
13 | mkdir -p {OVERLAYFS_ETC_MOUNT_POINT} | ||
14 | fi | ||
15 | |||
16 | mount -t proc proc /proc | ||
17 | mount -t sysfs sysfs /sys | ||
18 | |||
19 | [ -z "$CONSOLE" ] && CONSOLE="/dev/console" | ||
20 | |||
21 | BASE_OVERLAY_ETC_DIR={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc | ||
22 | UPPER_DIR=$BASE_OVERLAY_ETC_DIR/upper | ||
23 | WORK_DIR=$BASE_OVERLAY_ETC_DIR/work | ||
24 | LOWER_DIR=$BASE_OVERLAY_ETC_DIR/lower | ||
25 | |||
26 | if mount -n -t {OVERLAYFS_ETC_FSTYPE} \ | ||
27 | -o {OVERLAYFS_ETC_MOUNT_OPTIONS} \ | ||
28 | {OVERLAYFS_ETC_DEVICE} {OVERLAYFS_ETC_MOUNT_POINT} | ||
29 | then | ||
30 | mkdir -p $UPPER_DIR | ||
31 | mkdir -p $WORK_DIR | ||
32 | |||
33 | if {OVERLAYFS_ETC_EXPOSE_LOWER}; then | ||
34 | mkdir -p $LOWER_DIR | ||
35 | |||
36 | # provide read-only access to original /etc content | ||
37 | mount -o bind,ro /etc $LOWER_DIR | ||
38 | fi | ||
39 | |||
40 | mount -n -t overlay \ | ||
41 | -o upperdir=$UPPER_DIR \ | ||
42 | -o lowerdir=/etc \ | ||
43 | -o workdir=$WORK_DIR \ | ||
44 | -o index=off,xino=off,redirect_dir=off,metacopy=off \ | ||
45 | $UPPER_DIR /etc || \ | ||
46 | echo "PREINIT: Mounting etc-overlay failed!" | ||
47 | else | ||
48 | echo "PREINIT: Mounting </data> failed!" | ||
49 | fi | ||
50 | |||
51 | echo "PREINIT: done; starting </sbin/init>" | ||
52 | exec {SBIN_INIT_NAME} | ||