Re: Grub rescue

[Jordan Uggla]

On Sun, Mar 24, 2013 at 10:36 PM, Andrey Borzenkov <address@hidden> wrote:
> On Mon, Mar 25, 2013 at 8:19 AM, Jordan Uggla <address@hidden> wrote:
>> On Sun, Mar 24, 2013 at 3:19 PM, David WE Roberts <address@hidden> wrote:
>>> Now the 3TB [when did the notation move from GB to GiB?] permanent data
>>> disc has turned up I need to move my partitions across from an MBR disc to
>>> a GPT disc but keep the booting organisation effectively the same.
>>>
>>> So I seem to be stuck in a transition between old and new disc formats,
>>> and old and new BIOS formats.
>>
>> The normal procedure is to just run grub-install and (if needed)
>> grub-mkconfig after making whatever partitioning changes you want. Is
>> there any reason you can't do that?
>>
>
> To run grub-install you need to boot first, and to boot you need
> access to /boot/grub and to access /boot/grub you need part_gpt. Which
> is not available until you can access /boot/grub. Catch 22.

To change from an msdos label to a GPT label you need to be booted
into an OS. If you're booted into an OS you can run grub-install.
Where is the catch?

-- 
Jordan Uggla (Jordan_U on irc.freenode.net)