blob: b05e3957a38252b73e57bb2447a6d0f3b5b60b0c (
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
|
#!/bin/sh
echo "PREINIT: Start"
PATH=/sbin:/bin:/usr/sbin:/usr/bin
if {CREATE_MOUNT_DIRS}; then
mount -o remount,rw /
mkdir -p /proc
mkdir -p /sys
mkdir -p /run
mkdir -p /var/run
mkdir -p {OVERLAYFS_ETC_MOUNT_POINT}
fi
mount -t proc proc /proc
mount -t sysfs sysfs /sys
[ -z "$CONSOLE" ] && CONSOLE="/dev/console"
BASE_OVERLAY_ETC_DIR={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc
UPPER_DIR=$BASE_OVERLAY_ETC_DIR/upper
WORK_DIR=$BASE_OVERLAY_ETC_DIR/work
LOWER_DIR=$BASE_OVERLAY_ETC_DIR/lower
if mount -n -t {OVERLAYFS_ETC_FSTYPE} \
-o {OVERLAYFS_ETC_MOUNT_OPTIONS} \
{OVERLAYFS_ETC_DEVICE} {OVERLAYFS_ETC_MOUNT_POINT}
then
mkdir -p $UPPER_DIR
mkdir -p $WORK_DIR
if {OVERLAYFS_ETC_EXPOSE_LOWER}; then
mkdir -p $LOWER_DIR
# provide read-only access to original /etc content
mount -o bind,ro /etc $LOWER_DIR
fi
mount -n -t overlay \
-o upperdir=$UPPER_DIR \
-o lowerdir=/etc \
-o workdir=$WORK_DIR \
-o index=off,xino=off,redirect_dir=off,metacopy=off \
$UPPER_DIR /etc || \
echo "PREINIT: Mounting etc-overlay failed!"
else
echo "PREINIT: Mounting </data> failed!"
fi
echo "PREINIT: done; starting </sbin/init>"
exec {SBIN_INIT_NAME}
|
