On Fri, Jun 29, 2012 at 4:56 PM, Richard Yao <[email protected]> wrote:
> On 06/29/2012 03:04 PM, Mike Gilbert wrote:
>> On Fri, Jun 29, 2012 at 3:00 PM, Rich Freeman <[email protected]> wrote:
>>> On Fri, Jun 29, 2012 at 2:51 PM, Richard Yao <[email protected]> wrote:
>>>> GRUB2 does away with the conventional stage files. It also wants a
>>>> special BIOS Boot Partition in order to function. That is where it
>>>> stores the equivalent of the stage2 bootcode. That is similar to
>>>> FreeBSD's bootloader.
>>>
>>> Now, that should make for a fun migration!  Fortunately I do have a
>>> separate boot already, and I guess I can be daring and overwrite it in
>>> place and trust in grub2 to still find the kernel elsewhere.
>>>
>>> Those without a separate boot and without any free space are likely to
>>> find this to be painful.  Resizing partitions isn't exactly
>>> risk-free...
>>>
>>> Rich
>>>
>>
>> I think Richard is incorrect here; grub2 can live on any filesystem,
>> so long as some combination of modules can access it.
>>
>
> Do you know what function the BIOS Boot Partion serves? It is necessary
> when using GRUB2's ZFS support. I was under the impression that it
> stored boot code.
>

Based on a Google search I think "BIOS Boot Partition" is a GPT thing.
Not relevent if you have an MBR partition table.

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