Re: grub-install fails an RAID1
Tom H <tomh0665@gmail.com> writes:
> On Tue, Oct 11, 2011 at 5:58 PM, Kurt Flex <flxkrt@aol.com> wrote:
>>
>> # grub-install /dev/sda
>> /usr/sbin/grub-setup: warn: This msdos-style partition label has no post-MBR gap; embedding won't be possible!.
>> /usr/sbin/grub-setup: error: embedding is not possible, but this is required when the root device is on a RAID array or LVM volume.
>
> As the error message says, you don't have a "post-MBR gap". Your first
> partition starts too early. Typically, the first partition is preceded
> by 63 sectors of 512 bytes, The first sector is the MBR and the next
> 62 are the post-MBR gap in which both grub1 and grub2 save an image
> that can read a filesystem and therefore locate and boot a kernel.
>
> What I don't understand is that this has happened after running
> "aptitude safe-upgrade". How was grub2 booting your system before
> running aptitude?!
After reading the other replies that is the question I'm also asking to
myself. Well I haven't setup the server myself, it's a rented server und
was installed by the lessor.
Currently I guess the real bootloader is not on the raid at all. Maybe
it's some other device they are hiding from me. (There is also a rescue
system I can boot, but i can't find it in normal state).
Next week I should have a bit more time to take the risk to type
`sudo reboot' and see what happens.
Thank you for all the explanations.
Kurt
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