diff options
Diffstat (limited to 'package/base-files/brcm/bin/firstboot')
| -rwxr-xr-x | package/base-files/brcm/bin/firstboot | 80 |
1 files changed, 59 insertions, 21 deletions
diff --git a/package/base-files/brcm/bin/firstboot b/package/base-files/brcm/bin/firstboot index b65d3ee98..c3d9a64b8 100755 --- a/package/base-files/brcm/bin/firstboot +++ b/package/base-files/brcm/bin/firstboot @@ -1,5 +1,9 @@ #!/bin/sh -# Copyright (C) 2006 OpenWrt.org +# $Id$ +. /etc/functions.sh + +partname="OpenWrt" +mtdpart="$(find_mtd_part $partname)" rom=$(awk '/squashfs/ {print $2}' /proc/mounts) jffs=$(awk '/jffs2/ {print $2}' /proc/mounts) @@ -10,7 +14,7 @@ dupe() { # <new_root> <old_root> { cd $2 find . -xdev -type d - echo "./dev ./jffs ./mnt ./proc ./tmp ./sys" + echo "./dev ./jffs ./mnt ./proc ./tmp" # xdev skips mounted directories cd $1 } | xargs mkdir -p @@ -21,7 +25,6 @@ dupe() { # <new_root> <old_root> case "$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 @@ -37,24 +40,37 @@ pivot() { # <new_root> <old_root> pivot_root $1 $1$2 && { mount -o move $2/dev /dev mount -o move $2/tmp /tmp - mount -o move $2/sys /sys + mount -o move $2/jffs /jffs 2>&- 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 +fopivot() { # <rw_root> <ro_root> <dupe?> + root=$1 + { + mount -t mini_fo -o base=/,sto=$1 $1 /mnt 2>&- && root=/mnt + } || { + [ "$3" = "1" ] && { + mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1 + dupe $1 $rom + } + } + pivot $root $2 } ramoverlay() { mkdir -p /tmp/root - mountdp /tmp/root /mnt -o bind + fopivot /tmp/root /rom 1 } +# invoked as an executable [ "${0##*/}" = "firstboot" ] && { + + [ -z "$mtdpart" ] && { + echo "MTD partition not found." + exit 1 + } + [ -z "$rom" ] && { echo "You do not have a squashfs partition; aborting" echo "(firstboot cannot be run on jffs2 based firmwares)" @@ -62,17 +78,31 @@ ramoverlay() { } [ "$1" = "switch2jffs" ] && { - mtd erase OpenWrt - mount -o remount,ro none / # try to avoid fs changing while copying - mount -o bind / /mnt - mount /dev/mtdblock/4 /rom/jffs -t jffs2 + mtd erase "$partname" + + # try to avoid fs changing while copying + mount -o remount,ro none / 2>&- + + # copy ramoverlay to jffs2 + mount "$mtdpart" /rom/jffs -t jffs2 echo -n "copying files ... " - cp -a /mnt/* /rom/jffs - umount /mnt + cp -a /tmp/root/* /rom/jffs 2>&- echo "done" + + # switch back to squashfs (temporarily) + # and park the ramdisk ontop of /tmp/root pivot /rom /mnt mount -o move /mnt /tmp/root - pivot /jffs /rom + + # /jffs is the overlay + # /rom is the readonly + fopivot /jffs /rom + + # try to get rid of /tmp/root + # this will almost always fail + umount /tmp/root 2>&- + + # fs is clean jffs2root --clean exit 0 } @@ -81,10 +111,18 @@ ramoverlay() { [ \! -z "$jffs" ] && { echo "firstboot has already been run" echo "jffs2 partition is mounted, only resetting files" - dupe $jffs $rom - exit 0 + grep mini_fo /proc/filesystems >&- + [ $? != 0 ] && { + dupe $jffs $rom + exit 0 + } || { + rm -rf $jffs/* 2>&- + mount -o remount $jffs / 2>&- + exit 0 + } } - mtd erase OpenWrt - mountdp /dev/mtdblock/4 /jffs -t jffs2 + mtd erase "$partname" + mount "$mtdpart" /jffs -t jffs2 + fopivot /jffs /rom 1 } |