UPDATE: Grab file sfdisk from https://github.com/o...-arm/bin/sfdisk (it is a stripped static build for armv7l), place it to /system/bin/, assign 755 permissions and as root run:
/system/bin/sfdisk -d /dev/block/mmcblk0 > /sdcard/mmcblk0_stock.txt
and post a zipped file here.
The best bet of sfdisk is that we can dump and restore the partition table in command-line with
sfdisk -d /dev/block/mmcblk0 > mmcblk0_merge.txt
cat mmcblk0_merge.txt > sfdisk /dev/block/mmcblk0
Edited by gellmar, 15 March 2013 - 01:47 PM.