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	<phcoder@gmail.com>
Subject: Re: pvgrub2 is merged
Date: Wed, 27 Nov 2013 12:50:56 +0100
Message-ID: <5295DCA0.2010805__49710.3162961595$1385553156$gmane$org@gmail.com>
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	<20131126221221.3fe316e3@opensuse.site> <5295D867.9050306@m2r.biz>
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To: Fabio Fantoni <fabio.fantoni@m2r.biz>
Cc: Andrey Borzenkov <arvidjaar@gmail.com>, The development of GNU GRUB <grub-devel@gnu.org>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, M A Young <m.a.young@durham.ac.uk>
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On 27.11.2013 12:32, Fabio Fantoni wrote:
> Il 26/11/2013 19:12, Andrey Borzenkov ha scritto:
>> =D0=92 Tue, 26 Nov 2013 18:58:47 +0100
>> Fabio Fantoni <fabio.fantoni@m2r.biz> =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>>
>>> I have also another question:
>>> Is possible specify multiple path where search the grub.cfg for suppo=
rt
>>> 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
>=20
> 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
>=20
> But it's not working and it prints this line indefinitely in loop:
> error: no such device: /boot/grub2/grub.cfg.
>=20
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
>=20
> But all I get is the line "Welcome to GRUB!" followed by a white screen=

> on xl console.
>=20
> I don't know what else to try :(
>=20
> Thanks for any reply.
>=20
>>
>> 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.
>=20
>=20



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