| 1 | #!/bin/sh
|
|---|
| 2 | # $Id: firstboot 3633 2006-04-13 14:43:47Z nbd $
|
|---|
| 3 |
|
|---|
| 4 | rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
|
|---|
| 5 | jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
|
|---|
| 6 |
|
|---|
| 7 | dupe() { # <new_root> <old_root>
|
|---|
| 8 | cd $1
|
|---|
| 9 | echo -n "creating directories... "
|
|---|
| 10 | {
|
|---|
| 11 | cd $2
|
|---|
| 12 | find . -xdev -type d
|
|---|
| 13 | echo "./dev ./jffs ./mnt ./proc ./tmp"
|
|---|
| 14 | # xdev skips mounted directories
|
|---|
| 15 | cd $1
|
|---|
| 16 | } | xargs mkdir -p
|
|---|
| 17 | echo "done"
|
|---|
| 18 |
|
|---|
| 19 | echo -n "setting up symlinks... "
|
|---|
| 20 | for file in $(cd $2; find . -xdev -type f;); do
|
|---|
| 21 | case "$file" in
|
|---|
| 22 | ./rom/note) ;; #nothing
|
|---|
| 23 | ./etc/config*|\
|
|---|
| 24 | ./etc/resolv.conf|\
|
|---|
| 25 | ./usr/lib/ipkg/info) cp -af $2/$file $file;;
|
|---|
| 26 | *) ln -sf /rom/${file#./*} $file;;
|
|---|
| 27 | esac
|
|---|
| 28 | done
|
|---|
| 29 | for file in $(cd $2; find . -xdev -type l;); do
|
|---|
| 30 | cp -af $2/${file#./*} $file
|
|---|
| 31 | done
|
|---|
| 32 | echo "done"
|
|---|
| 33 | }
|
|---|
| 34 |
|
|---|
| 35 | pivot() { # <new_root> <old_root>
|
|---|
| 36 | mount -o move /proc $1/proc && \
|
|---|
| 37 | pivot_root $1 $1$2 && {
|
|---|
| 38 | mount -o move $2/dev /dev
|
|---|
| 39 | mount -o move $2/tmp /tmp
|
|---|
| 40 | return 0
|
|---|
| 41 | }
|
|---|
| 42 | }
|
|---|
| 43 |
|
|---|
| 44 | mountdp() { # <device> <mount_point> <ignored> <fs>
|
|---|
| 45 | dev=$1; mnt=$2; shift 2; opt=$*
|
|---|
| 46 | mount $dev $mnt $opt
|
|---|
| 47 | dupe $mnt $rom
|
|---|
| 48 | pivot $mnt /rom
|
|---|
| 49 | }
|
|---|
| 50 |
|
|---|
| 51 | fopivot() { # <rw_root> <ro_root> <dupe?>
|
|---|
| 52 | root=$1
|
|---|
| 53 | mount -t mini_fo -o base=/,sto=$1 $1 /mnt 2>&- && root=/mnt
|
|---|
| 54 | pivot $root $2
|
|---|
| 55 | }
|
|---|
| 56 |
|
|---|
| 57 |
|
|---|
| 58 | ramoverlay() {
|
|---|
| 59 | mkdir -p /tmp/root
|
|---|
| 60 | mountdp /tmp/root /mnt -o bind
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | [ "${0##*/}" = "firstboot" ] && {
|
|---|
| 64 | [ -z "$rom" ] && {
|
|---|
| 65 | echo "You do not have a squashfs partition; aborting"
|
|---|
| 66 | echo "(firstboot cannot be run on jffs2 based firmwares)"
|
|---|
| 67 | exit 1
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | # script run manually
|
|---|
| 71 | [ \! -z "$jffs" ] && {
|
|---|
| 72 | echo "firstboot has already been run"
|
|---|
| 73 | echo "jffs2 partition is mounted, only resetting files"
|
|---|
| 74 | dupe $jffs $rom
|
|---|
| 75 | exit 0
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | mtd erase data
|
|---|
| 79 | mountdp /dev/mtdblock/4 /jffs -t jffs2
|
|---|
| 80 | }
|
|---|
