89 lines
1.9 KiB
Bash
Executable file
89 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
|
|
# Copyright (C) 2006 OpenWrt.org
|
|
|
|
rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
|
|
jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
|
|
|
|
dupe() { # <new_root> <old_root>
|
|
cd $1
|
|
echo -n "creating directories... "
|
|
{
|
|
cd $2
|
|
find . -xdev -type d
|
|
echo "./dev ./jffs ./mnt ./proc ./tmp ./sys"
|
|
# xdev skips mounted directories
|
|
cd $1
|
|
} | xargs mkdir -p
|
|
echo "done"
|
|
|
|
echo -n "setting up symlinks... "
|
|
for file in $(cd $2; find . -xdev -type f;); do
|
|
case "$file" in
|
|
./rom/note) ;; #nothing
|
|
./etc/config*|\
|
|
./etc/resolv.conf|\
|
|
./usr/lib/ipkg/info) cp -af $2/$file $file;;
|
|
*) ln -sf /rom/${file#./*} $file;;
|
|
esac
|
|
done
|
|
for file in $(cd $2; find . -xdev -type l;); do
|
|
cp -af $2/${file#./*} $file
|
|
done
|
|
echo "done"
|
|
}
|
|
|
|
pivot() { # <new_root> <old_root>
|
|
mount -o move /proc $1/proc && \
|
|
pivot_root $1 $1$2 && {
|
|
mount -o move $2/dev /dev
|
|
mount -o move $2/tmp /tmp
|
|
mount -o move $2/sys /sys
|
|
return 0
|
|
}
|
|
}
|
|
|
|
mountdp() { # <device> <mount_point> <ignored> <fs>
|
|
dev=$1; mnt=$2; shift 2; opt=$*
|
|
mount $dev $mnt $opt
|
|
dupe $mnt $rom
|
|
pivot $mnt /rom
|
|
}
|
|
|
|
ramoverlay() {
|
|
mkdir -p /tmp/root
|
|
mountdp /tmp/root /mnt -o bind
|
|
}
|
|
|
|
[ "${0##*/}" = "firstboot" ] && {
|
|
[ -z "$rom" ] && {
|
|
echo "You do not have a squashfs partition; aborting"
|
|
echo "(firstboot cannot be run on jffs2 based firmwares)"
|
|
exit 1
|
|
}
|
|
|
|
[ "$1" = "switch2jffs" ] && {
|
|
mtd erase OpenWrt
|
|
mount -o remount,ro none / # try to avoid fs changing while copying
|
|
mount -o bind / /mnt
|
|
mount /dev/mtdblock/4 /rom/jffs -t jffs2
|
|
echo -n "copying files ... "
|
|
cp -a /mnt/* /rom/jffs
|
|
umount /mnt
|
|
echo "done"
|
|
pivot /rom /mnt
|
|
mount -o move /mnt /tmp/root
|
|
pivot /jffs /rom
|
|
exit 0
|
|
}
|
|
|
|
# script run manually
|
|
[ \! -z "$jffs" ] && {
|
|
echo "firstboot has already been run"
|
|
echo "jffs2 partition is mounted, only resetting files"
|
|
dupe $jffs $rom
|
|
exit 0
|
|
}
|
|
|
|
mtd erase OpenWrt
|
|
mountdp /dev/mtdblock/4 /jffs -t jffs2
|
|
}
|