| 1 | #!/bin/sh |
| 2 | # Copyright 2010 Vertical Communications |
| 3 | |
| 4 | # This is free software, licensed under the GNU General Public License v2. |
| 5 | # See /LICENSE for more information. |
| 6 | |
| 7 | determine_root_device() { |
| 8 | root_device="$(mount | grep ' / ' | cut -f1 -d\ | grep -v rootfs )" |
| 9 | } |
| 10 | |
| 11 | set_jffs_mp() { |
| 12 | jffs="$(awk '/jffs2/ {print $2}' /proc/mounts)" |
| 13 | } |
| 14 | |
| 15 | er_load_modules() { |
| 16 | mkdir -p /tmp/extroot_modules/modules.d |
| 17 | mkdir -p /tmp/extroot_modules/modules |
| 18 | ln -sf /etc/modules.d/* /tmp/overlay/etc/modules.d/* /tmp/extroot_modules/modules.d |
| 19 | ln -sf /lib/modules/*/* /tmp/overlay/lib/modules/*/* /tmp/extroot_modules/modules |
| 20 | local modules="$(grep -l '# May be required for rootfs' /tmp/extroot_modules/modules.d/* 2>/dev/null)" |
| 21 | cd /tmp/extroot_modules/modules && [ -n "$modules" ] && { |
| 22 | cat $modules | sed -e 's/^\([^#].*\)/insmod \.\/\1.ko/'| sh 2>&- || : |
| 23 | } |
| 24 | rm -rf /tmp/extroot_modules |
| 25 | } |
| 26 | |
| 27 | pivot_rom() { # <new_root> <old_root> |
| 28 | mount -o move /proc $1/proc && \ |
| 29 | pivot_root $1 $1$2 && { |
| 30 | mount -o move $2/dev /dev |
| 31 | mount -o move $2/tmp /tmp |
| 32 | mount -o move $2/sys /sys 2>&- |
| 33 | return 0 |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | |
