openwrtv3/target/linux/x86_64/base-files/lib/upgrade/platform.sh
Jo-Philipp Wich 05abf01ac0 x86_64: fix invoking sysupgrade on PARTUUID mounted system
Fix sysupgrade to determine the correct boot block device to use if
/proc/cmdline contains a PARTUUID root.

Change the preinit move_config() hook to use the UUID scanning code
from sysupgrade in order to avoid code duplication.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 42968
2014-10-19 20:28:43 +00:00

66 lines
1.2 KiB
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platform_export_bootpart() {
local cmdline uuid disk
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="${disk#PARTUUID=}"
uuid="${uuid%-02}"
for disk in /dev/[hsv]d[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
export BOOTPART="${disk}1"
return 0
fi
done
;;
/dev/*)
export BOOTPART="${disk%[0-9]}1"
return 0
;;
esac
fi
return 1
}
platform_check_image() {
[ "$#" -gt 1 ] && return 1
case "$(get_magic_word "$1")" in
eb48|eb63) return 0;;
*)
echo "Invalid image type"
return 1
;;
esac
}
platform_copy_config() {
if [ -b "$BOOTPART" ]; then
mount -t ext4 -o rw,noatime "$BOOTPART" /mnt
cp -af "$CONF_TAR" /mnt/
umount /mnt
fi
}
platform_do_upgrade() {
platform_export_bootpart
if [ -b "${BOOTPART%[0-9]}" ]; then
sync
get_image "$@" | dd of="${BOOTPART%[0-9]}" bs=4096 conv=fsync
sleep 1
fi
}