Re: [Xen-devel] pvgrub2 is merged

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 27.11.2013 12:32, Fabio Fantoni wrote:
> Il 26/11/2013 19:12, Andrey Borzenkov ha scritto:
>> В Tue, 26 Nov 2013 18:58:47 +0100
>> Fabio Fantoni <address@hidden> пишет:
>>
>>> I have also another question:
>>> Is possible specify multiple path where search the grub.cfg for support
>>> all mainly distributions and add a custom cfg path support taking it
>>> from arguments?
>>>
>> You can do something like
>>
>> if search --set root --file /boot/grub2/grub.cfg ; then
>>    configfile /boot/grub2/grub.cfg
>> elif search --set root --file /boot/grub/grub.cfg ; then
>>    configfile /boot/grub/grub.cfg
>> elif ...
>>    ...
>> fi
> 
> I tried with this:
> cat > boot/grub/grub.cfg <<EOF
> insmod lvm
> insmod ext2
> insmod part_msdos
> insmod part_gpt
> if search --set root --file /boot/grub2/grub.cfg ; then
>   configfile /boot/grub2/grub.cfg
> elif search --set root --file /boot/grub/grub.cfg ; then
>   configfile /boot/grub/grub.cfg
> fi
> EOF
> 
> But it's not working and it prints this line indefinitely in loop:
> error: no such device: /boot/grub2/grub.cfg.
> 
That pretty much explains what happened: you don't have any
/boot/grub2/grub.cfg and when looking for /boot/grub/grub.cfg GRUB found
its own memdisk and fell into recursion. I'm not sure what should be the
proper way to solve this recursion.
> I also tried with only these lines instead of conditions:
> search -s root -f /boot/grub/grub.cfg
> configfile /boot/grub/grub.cfg
> 
> But all I get is the line "Welcome to GRUB!" followed by a white screen
> on xl console.
> 
> I don't know what else to try :(
> 
> Thanks for any reply.
> 
>>
>> If xen provides way to pass arguments to kernel, it sure could be
>> implemented as arguments to grub. Actually someone asked for a way to
>> pass arguments to grub on EFI, so this could share implementation.
> 
>

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