diff options
Diffstat (limited to 'package/base-files/files')
| -rwxr-xr-x | package/base-files/files/bin/firstboot | 128 | ||||
| -rwxr-xr-x | package/base-files/files/etc/preinit | 5 | ||||
| -rwxr-xr-x | package/base-files/files/sbin/mount_root | 15 |
3 files changed, 146 insertions, 2 deletions
diff --git a/package/base-files/files/bin/firstboot b/package/base-files/files/bin/firstboot new file mode 100755 index 0000000000..fe63d1b279 --- /dev/null +++ b/package/base-files/files/bin/firstboot @@ -0,0 +1,128 @@ +#!/bin/sh +# $Id: firstboot 5544 2006-11-17 03:07:10Z nbd $ +. /etc/functions.sh + +partname="rootfs_data" +mtdpart="$(find_mtd_part $partname)" + +rom=$(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" + # 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*|\ + ./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/jffs /jffs 2>&- + return 0 + } +} + +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 $2 +} + +ramoverlay() { + mkdir -p /tmp/root + fopivot /tmp/root /rom 1 +} + +# invoked as an executable +[ "${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)" + exit 1 + } + + [ "$1" = "switch2jffs" ] && { + mtd erase "$partname" + + # try to avoid fs changing while copying + mount -o remount,ro none / 2>&- + + # copy ramoverlay to jffs2 + mount "$mtdpart" /rom/jffs -t jffs2 + echo -n "copying files ... " + cp -a /tmp/root/* /rom/jffs 2>&- + echo "done" + + # switch back to squashfs (temporarily) + # and park the ramdisk ontop of /tmp/root + pivot /rom /mnt + mount -o move /mnt /tmp/root + + # /jffs is the overlay + # /rom is the readonly + fopivot /jffs /rom + + # try to get rid of /tmp/root + # this will almost always fail + umount /tmp/root 2>&- + + # fs is clean + jffs2root --clean + exit 0 + } + + # script run manually + [ \! -z "$jffs" ] && { + echo "firstboot has already been run" + echo "jffs2 partition is mounted, only resetting files" + grep mini_fo /proc/filesystems >&- + [ $? != 0 ] && { + dupe $jffs $rom + exit 0 + } || { + rm -rf $jffs/* 2>&- + mount -o remount $jffs / 2>&- + exit 0 + } + } + + mtd erase "$partname" + mount "$mtdpart" /jffs -t jffs2 + fopivot /jffs /rom 1 +} diff --git a/package/base-files/files/etc/preinit b/package/base-files/files/etc/preinit new file mode 100755 index 0000000000..74d4e88892 --- /dev/null +++ b/package/base-files/files/etc/preinit @@ -0,0 +1,5 @@ +#!/bin/sh +# Copyright (C) 2006 OpenWrt.org +export PATH=/bin:/sbin:/usr/bin:/usr/sbin +mount_root +exec /sbin/init diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root index 81660f0067..607877c643 100755 --- a/package/base-files/files/sbin/mount_root +++ b/package/base-files/files/sbin/mount_root @@ -1,10 +1,21 @@ #!/bin/sh # Copyright (C) 2006 OpenWrt.org +. /etc/functions.sh mount none /proc -t proc size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo) mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777 + +grep rootfs /proc/mtd >/dev/null 2>/dev/null && { + mtd unlock rootfs + grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && { + . /bin/firstboot + echo "switching to jffs2" + mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2 + fopivot /jffs /rom + } +} || mount -o remount,rw /dev/root / + mkdir -p /dev/pts mount none /dev/pts -t devpts -mount -t sysfs none /sys 2>&- -mount -o remount,rw /dev/root / +grep sysfs /proc/filesystems >/dev/null && mount -t sysfs none /sys 2>&- |