Ubuntu updates MBR damage misoperation loss of Partition Table

Ubuntu installed with wubi in Win7. Because the software cannot be compiled and installed in Ubuntu10.40, glib/gtk +-is updated, but it still cannot be compiled. It was a tragedy to update everything, including grub, with soft automatic parts. After the restart, the Error: nosuchdevicexxxxxxxxxxxxxxxxxxxgrubrescue is displayed. Ubuntu cannot be entered, but Win7 cannot.

Ubuntu installed with wubi in Win7. Because the software cannot be compiled and installed in Ubuntu10.40, glib/gtk +-is updated, but it still cannot be compiled. It was a tragedy to update everything, including grub, with soft automatic parts. Directly displayed after restart

Error: no such device xxxxxxxxxxxxxxxxxxxxx

Grub rescue:

Even more tragic. Ubuntu cannot be entered, but Win7 cannot. You can find a boot CD, XP, and cannot enter the repair server of Win7. You can check it in PE. I found a DiskGenius tool in the disk tool and found a lost partition table in the search. The partition itself is still there. I just clicked it and searched for two partitions. I did not pay attention to saving it. I did not have any seven partitions. The two searched partitions are displayed. Tragedy! Then, no matter how it is rebuilt, it cannot be restored by searching again. I was trying to use another software. I downloaded the DG from the Internet and loaded it into the PE. I thought it was still DiskGenius and scanned the lost partition again. I didn't expect all of them to be flushed out. There were a lot of seven partitions, but the display was incomplete. After a restart, the access would be normal and the drive letter would be normal! OMG, and then re-build the MBR with DiskGenius loaded by the U disk. Restart. the startup list is displayed! Ubuntu/Win7 enters normally!

The thrilling journey has come to an end.