x86: fix sysupgrade

[openwrt.git] / target / linux / x86 / base-files / lib / preinit / 79_move_config

diff --git a/target/linux/x86/base-files/lib/preinit/79_move_config b/target/linux/x86/base-files/lib/preinit/79_move_config
new file mode 100644 (file)
index 0000000..0bffbab
--- /dev/null
+++ b/target/linux/x86/base-files/lib/preinit/79_move_config
@@ -0,0 +1,22 @@
+#!/bin/sh
+# Copyright (C) 2012 OpenWrt.org
+
+move_config() {
+       local rootfsdev
+       local rootfstype
+       
+       rootfstype="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "rootfstype") { print $2 }' < /proc/cmdline)"
+       case "$rootfstype" in
+               squashfs|jffs2)
+                       rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "block2mtd.block2mtd") { print substr($2,1,index($2, ",")-1) }' < /proc/cmdline)";;
+               ext4)
+                       rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "root") { print $2 }' < /proc/cmdline)";;
+       esac
+
+       mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt
+       mv -f /mnt/sysupgrade.tgz /
+       umount /mnt
+}
+
+boot_hook_add preinit_mount_root move_config
+