Re: Grub2 gives error :File not found and goes into rescue mode

[Gary Roach <gary719_list1@verizon.net>]

On 05/22/2013 04:45 PM, Sebastian Canagaratna wrote:

Thank uou Frank and Klaus. As you surmised, it was a typo : I meant to say /dev/sda to be sure I repeated the grub-install

and the version given by bootinfoscript if 1.99 though AI have 2.00-14. When I use grub rescue and type set prefixs=(hd1,msdos1)/boot/grub and then root=(hd1,msdos1) and insmod normal it gives unknown file system error.

Sebastian

On Wed, May 22, 2013 at 7:19 PM, Frank McCormick <debianlist@videotron.ca> wrote:

On 05/22/2013 05:21 PM, Sebastian Canagaratna wrote:

Further to the questions I raised, I downloaded supergrub2 and I was
able to access the system.However, after starting 3.9.3.slh-1 and
running update-grub and grub-install /dev/sda0 ( the installation
finished. No error reported) still, on rebooting, come to the same error

   I think you should be installing grub in /dev/sda, the MBR not a partition.


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Cheers
Frank

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Hi all

Actully fdisk -l shows the Master Boot Record (MBR)  on  /dev/sda1. This is the standard place for it for ext type formats.  It and the partition table are in the first 512 bytes of first partition. I formatted both systems months ago and have had no trouble until now. All test show that there is nothing wrong with the partitioning. Further, I did nothing to the disk partitions during the update. As I said earlier, my other identical system works fine and the bad system only started giving trouble after a fairly massive update.

Sebastian, Your root="(hd0,msdos1)" should be 'set root="(hd0,msdos1)".' I don't know whether that is a typo or whether leaving off set would make a difference but my information says it should be "set root".

Gary R.