diff options
Diffstat (limited to 'package/base-files/files/sbin/firstboot')
| -rwxr-xr-x | package/base-files/files/sbin/firstboot | 176 |
1 files changed, 24 insertions, 152 deletions
diff --git a/package/base-files/files/sbin/firstboot b/package/base-files/files/sbin/firstboot index d5a0981..5de4fa8 100755 --- a/package/base-files/files/sbin/firstboot +++ b/package/base-files/files/sbin/firstboot @@ -1,162 +1,34 @@ #!/bin/sh -. /etc/functions.sh -partname="rootfs_data" -mtdpart="$(find_mtd_part $partname)" +switch2jffs_hook= +jffs2reset_hook= +no_fo_hook= -rom=$(awk '/squashfs/ {print $2}' /proc/mounts) -jffs=$(awk '/jffs2/ {print $2}' /proc/mounts) +. /lib/functions/boot.sh -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" +firstboot_skip_next=false - 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/opkg/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 2>&- - mount -o move $2/jffs /jffs 2>&- - return 0 - } -} - -fopivot() { # <rw_root> <ro_root> <dupe?> - root=$1 - { - if grep -q mini_fo /proc/filesystems; then - mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt - else - mount --bind / /mnt - mount --bind -o union "$1" /mnt && root=/mnt - fi - } || { - [ "$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 - mount -t tmpfs root /tmp/root - fopivot /tmp/root /rom 1 -} +for fb_source_file in /lib/firstboot/*; do + . $fb_source_file +done # invoked as an executable -[ "${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 - } - - [ "$1" = "switch2jffs" ] && { - if grep -q mini_fo /proc/filesystems; then - mount "$mtdpart" /rom/jffs -t jffs2 || exit - - # try to avoid fs changing while copying - mount -o remount,ro none / 2>&- - - # copy ramoverlay to 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>&- - else - # switch back to squashfs temporarily - pivot /rom /mnt - - # get rid of the old overlay - umount -l /mnt - - # another umount to get rid of the bind from /tmp/root - umount -l /mnt - - # initialize jffs2 - mount "$mtdpart" /jffs -t jffs2 || exit - - # workaround to ensure that union can attach properly - sync - ls /jffs >/dev/null - - # switch to the new (empty) jffs2 - fopivot /jffs /rom 1 - - # copy ramoverlay to jffs2, must be done after switching - # to the new rootfs to avoid creating opaque directories - echo -n "copying files ... " - cp -a /tmp/root/* / >/dev/null 2>&1 - sync - echo "done" - - umount -l /jffs - umount -l /tmp/root - fi - - exit 0 - } - - # script run manually - [ \! -z "$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 $jffs / 2>&- - exit 0 - } - } - +if [ "${0##*/}" = "firstboot" ]; then + if [ "$1" = "switch2jffs" ]; then + boot_run_hook switch2jffs + elif [ -z "$jffs" ]; then + reset_has_fo=true + echo "firstboot has already been run" + echo "jffs2 partition is mounted, only resetting files" + boot_run_hook jffs2reset + else mtd erase "$partname" mount "$mtdpart" /jffs -t jffs2 fopivot /jffs /rom 1 -} + fi +else + set_mtd_part + set_rom_part + set_jffs_part +fi + |