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| author | Jo-Philipp Wich <jow@openwrt.org> | 2014-10-17 22:50:38 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2014-10-17 22:50:38 +0000 |
| commit | 93e7f9f6113474ac98ef37ba2fefea6bafb5ff3f (patch) | |
| tree | 956b2487dd4d809e76610b2cfe1fc7b0b2c714e3 /target/linux | |
| parent | 882e83a275f36a8687d6b65930d64fda8f93b64f (diff) | |
| download | upstream-93e7f9f6113474ac98ef37ba2fefea6bafb5ff3f.tar.gz upstream-93e7f9f6113474ac98ef37ba2fefea6bafb5ff3f.tar.bz2 upstream-93e7f9f6113474ac98ef37ba2fefea6bafb5ff3f.zip | |
x86_64: support sysupgrade config restore on PARTUUID mounted disks
Fix the move_config() procedure to properly find the corresponding disk if
the rootfs was mounted by PARTUUID instead of a device node.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42946 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/x86_64/base-files/lib/preinit/79_move_config | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/target/linux/x86_64/base-files/lib/preinit/79_move_config b/target/linux/x86_64/base-files/lib/preinit/79_move_config index 0bffbab994..ca9c2a9b5e 100644 --- a/target/linux/x86_64/base-files/lib/preinit/79_move_config +++ b/target/linux/x86_64/base-files/lib/preinit/79_move_config @@ -1,21 +1,44 @@ #!/bin/sh -# Copyright (C) 2012 OpenWrt.org +# Copyright (C) 2012-2014 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 $2 }' < /proc/cmdline)";; - esac + local cmdline uuid disk dev - mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt - mv -f /mnt/sysupgrade.tgz / - umount /mnt + if read cmdline < /proc/cmdline; then + case "$cmdline" in + *block2mtd=*) + disk="${cmdline##*block2mtd=}" + disk="${disk%%,*}" + ;; + *root=*) + disk="${cmdline##*root=}" + disk="${disk%% *}" + ;; + esac + + case "$disk" in + PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02) + uuid="${cmdline#PARTUUID=}" + uuid="${uuid%-02}" + for disk in /dev/sd[a-z]; do + set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "') + if [ "$4$3$2$1" = "$uuid" ]; then + dev="${disk}1" + break + fi + done + ;; + /dev/*) + dev="${disk%[0-9]}1" + ;; + esac + fi + + if [ -n "$dev" ]; then + mount -t ext4 -o rw,noatime "$dev" /mnt + mv -f /mnt/sysupgrade.tgz / + umount /mnt + fi } boot_hook_add preinit_mount_root move_config |