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[openwrt.git] / openwrt / package / base-files / default / bin / firstboot

diff --git a/openwrt/package/base-files/default/bin/firstboot b/openwrt/package/base-files/default/bin/firstboot
index eff7063..2818978 100755 (executable)
--- a/openwrt/package/base-files/default/bin/firstboot
+++ b/openwrt/package/base-files/default/bin/firstboot
@@ -1,62 +1,90 @@
 #!/bin/sh
 # $Id$
 
-mount | grep squashfs >&- || {
-       echo "You do not have a squashfs partition; aborting"
-       echo "(firstboot cannot be run on jffs2 based firmwares)"
-       return
+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"
 }
 
-[ -f "/tmp/.firstboot" ] && {
-       echo "firstboot is already running"
-       return
+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
+       }
 }
-touch /tmp/.firstboot
 
-jdev=$(mount | awk '/jffs2/ {print $3}')
+mountdp() { # <device> <mount_point> <ignored> <fs>
+        dev=$1; mnt=$2; shift 2; opt=$*
+       mount $dev $mnt $opt
+       dupe $mnt $rom
+       pivot $mnt /rom
+}
 
-if [ -z "$jdev" ]; then
-       echo -n "Creating jffs2 partition... "
-       mtd erase OpenWrt >&- 2>&-
-       mount -t jffs2 /dev/mtdblock/4 /jffs
-       echo "done"
-       cd /jffs
-else
-       echo "firstboot has already been run"
-       echo "jffs2 partition is mounted, only resetting files"
-       cd $jdev
-fi
-
-exec 2>/dev/null
-
-mount /dev/mtdblock/2 /rom -o ro
-
-echo -n "creating directories... "
-{
-       cd /rom
-       find . -type d
-       cd -
-} | xargs mkdir
-echo "done"
-
-echo -n "setting up symlinks... "
-for file in $(cd /rom; find *  -type f; find *  -type l;)
-do {
-  case "${file%/*}" in
-    "usr/lib/ipkg/info"|"etc/config") cp -f /rom/$file $file;;
-    *) ln -sf /rom/$file $file;;
-  esac
-} done
-echo "done"
-
-touch /tmp/resolv.conf
-ln -s /tmp/resolv.conf /etc/resolv.conf
-
-umount /rom
-mount none /jffs/proc -t proc
-pivot_root /jffs /jffs/rom
-mount none /dev  -t devfs
-mount none /tmp  -t ramfs
-umount /rom/proc
-umount /rom/tmp
-umount /rom/dev
+ramoverlay() {
+       mkdir -p /tmp/root
+       mountdp /tmp/root /mnt -o bind
+}
+
+[ "${0##*/}" = "firstboot" ] && {
+       [ -z "$rom" ] && {
+               echo "You do not have a squashfs partition; aborting"
+               echo "(firstboot cannot be run on jffs2 based firmwares)"
+               exit 1
+       }
+
+       [ "$1" = "switch2jffs" ] && {
+               mtd erase OpenWrt
+               mount -o remount,ro none / # try to avoid fs changing while copying
+               mount -o bind / /mnt
+               mount /dev/mtdblock/4 /rom/jffs -t jffs2
+               echo -n "copying files ... "
+               cp -a /mnt/* /rom/jffs
+               umount /mnt
+               echo "done"
+               pivot /rom /mnt
+               mount -o move /mnt /tmp/root
+               pivot /jffs /rom
+               jffs2root --clean
+               exit 0
+       }
+
+       # script run manually
+       [ \! -z "$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
+}