Re: Probing misjudges ext2 partition as fat.

[Andrei Borzenkov]

В Sun, 21 Sep 2014 13:03:37 +0200
Andreas Krüger <address@hidden> пишет:

> Hello, grub developers,
> 
> my problem summary (lots of details follow below):
> 
> My /boot file system lives on partition /dev/sda1.  This was an ext2
> or ext4 file system (not entirely sure).  When doing some grub-install
> work, this was wrongly recognized as fat.
> 
> This resulted in a system that could no longer boot from hard drive.
> 
> What helped in the end: Copying the files of /boot, umounting,
> overwriting the start of /dev/sda1 with zeros, mke2fs -t ext2
> /dev/sda1, mounting, copying the files back to /boot and running
> grub-install again.
> 

Unfortunately you destroyed any possibility to investigate it further.
You should at least have saved beginning of partition.