2 # $Id: firstboot 5544 2006-11-17 03:07:10Z nbd $
6 mtdpart="$(find_mtd_part $partname)"
8 rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
9 jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
11 dupe() { # <new_root> <old_root>
13 echo -n "creating directories... "
17 echo "./dev ./jffs ./mnt ./proc ./tmp"
18 # xdev skips mounted directories
23 echo -n "setting up symlinks... "
24 for file in $(cd $2; find . -xdev -type f;); do
26 ./rom/note) ;; #nothing
28 ./usr/lib/ipkg/info/*) cp -af $2/$file $file;;
29 *) ln -sf /rom/${file#./*} $file;;
32 for file in $(cd $2; find . -xdev -type l;); do
33 cp -af $2/${file#./*} $file
38 pivot() { # <new_root> <old_root>
39 mount -o move /proc $1/proc && \
40 pivot_root $1 $1$2 && {
41 mount -o move $2/dev /dev
42 mount -o move $2/tmp /tmp
43 mount -o move $2/sys /sys 2>&-
44 mount -o move $2/jffs /jffs 2>&-
49 fopivot() { # <rw_root> <ro_root> <dupe?>
52 mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
55 mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
64 fopivot /tmp/root /rom 1
67 # invoked as an executable
68 [ "${0##*/}" = "firstboot" ] && {
70 [ -z "$mtdpart" ] && {
71 echo "MTD partition not found."
76 echo "You do not have a squashfs partition; aborting"
77 echo "(firstboot cannot be run on jffs2 based firmwares)"
81 [ "$1" = "switch2jffs" ] && {
82 mount "$mtdpart" /rom/jffs -t jffs2 || exit
84 # try to avoid fs changing while copying
85 mount -o remount,ro none / 2>&-
87 # copy ramoverlay to jffs2
88 echo -n "copying files ... "
89 cp -a /tmp/root/* /rom/jffs 2>&-
92 # switch back to squashfs (temporarily)
93 # and park the ramdisk ontop of /tmp/root
95 mount -o move /mnt /tmp/root
97 # /jffs is the overlay
98 # /rom is the readonly
101 # try to get rid of /tmp/root
102 # this will almost always fail
103 umount /tmp/root 2>&-
108 # script run manually
109 [ \! -z "$jffs" ] && {
110 echo "firstboot has already been run"
111 echo "jffs2 partition is mounted, only resetting files"
112 grep mini_fo /proc/filesystems >&-
118 mount -o remount $jffs / 2>&-
123 mtd erase "$partname"
124 mount "$mtdpart" /jffs -t jffs2