grub2 md-linear unsupported?

grub2 md-linear unsupported?

[Leo Baltus]

Hi,

I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
level 'linear'. 

On grub2-install is says:

error: unsupported RAID level: -1.
/sbin/grub2-probe: error: no such disk.
Auto-detection of a filesystem of /dev/md0 failed.

Is this really unsupported?

-- 
Leo Baltus, internetbeheerder                         /\
NPO ICT Internet Services                            /NPO/\
Sumatralaan 45, 1217 GP Hilversum, Filmcentrum, west \  /\/
beheer@omroep.nl, 035-6773555                         \/

Re: grub2 md-linear unsupported?

[Mads Kiilerich]

On 04/23/2012 03:19 PM, Leo Baltus wrote:
> Hi,
>
> I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
> level 'linear'.
>
> On grub2-install is says:

Exactly which full command is it that fails?

What do you have in /boot/grub2/device.map?

/Mads

> error: unsupported RAID level: -1.
> /sbin/grub2-probe: error: no such disk.
> Auto-detection of a filesystem of /dev/md0 failed.
>
> Is this really unsupported?
>

Re: grub2 md-linear unsupported?

[Leo Baltus]

Op 23/04/2012 om 16:00:26 +0200, schreef Mads Kiilerich:
> On 04/23/2012 03:19 PM, Leo Baltus wrote:
> >Hi,
> >
> >I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
> >level 'linear'.
> >
> >On grub2-install is says:
> 
> Exactly which full command is it that fails?

Im am working from a busybox shell, prepare my disk, mount on /mnt,
polulate it with rsync, bind mount dev on it and do

	chroot /mnt grub2-install /dev/sda
> 
> What do you have in /boot/grub2/device.map?
> 

I'm not using a device.map

> 
> >error: unsupported RAID level: -1.
> >/sbin/grub2-probe: error: no such disk.
> >Auto-detection of a filesystem of /dev/md0 failed.
> >
> >Is this really unsupported?
> >
> 

-- 
Leo Baltus, internetbeheerder                         /\
NPO ICT Internet Services                            /NPO/\
Sumatralaan 45, 1217 GP Hilversum, Filmcentrum, west \  /\/
beheer@omroep.nl, 035-6773555                         \/

Re: grub2 md-linear unsupported?

[Bean]

Hi,

I believe it only support raid level 0/1/4/5/6/10. It's easy to add
linear support, but i guess grub2 is currently in frozen state so you
might need to wait a bit.

On Mon, Apr 23, 2012 at 10:25 PM, Leo Baltus
<Leo.Baltus+grub2@tech.omroep.nl> wrote:
> Op 23/04/2012 om 16:00:26 +0200, schreef Mads Kiilerich:
>> On 04/23/2012 03:19 PM, Leo Baltus wrote:
>> >Hi,
>> >
>> >I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
>> >level 'linear'.
>> >
>> >On grub2-install is says:
>>
>> Exactly which full command is it that fails?
>
> Im am working from a busybox shell, prepare my disk, mount on /mnt,
> polulate it with rsync, bind mount dev on it and do
>
>        chroot /mnt grub2-install /dev/sda
>>
>> What do you have in /boot/grub2/device.map?
>>
>
> I'm not using a device.map
>
>>
>> >error: unsupported RAID level: -1.
>> >/sbin/grub2-probe: error: no such disk.
>> >Auto-detection of a filesystem of /dev/md0 failed.
>> >
>> >Is this really unsupported?
>> >
>>
>
> --
> Leo Baltus, internetbeheerder                         /\
> NPO ICT Internet Services                            /NPO/\
> Sumatralaan 45, 1217 GP Hilversum, Filmcentrum, west \  /\/
> beheer@omroep.nl, 035-6773555                         \/
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel



-- 
Best wishes
Bean

Re: grub2 md-linear unsupported?

[Vladimir 'φ-coder/phcoder' Serbinenko]

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On 23.04.2012 17:02, Bean wrote:
> Hi,
>
> I believe it only support raid level 0/1/4/5/6/10. It's easy to add
> linear support, but i guess grub2 is currently in frozen state so you
> might need to wait a bit.
It depends on the kind of the problem. If it's just small probe issue
(like I suppose given that mdraid1x_linux.c has code to alias -1 to 0)
then it can be fixed before 2.00. If it's something more serious it will
have to wait.
>
> On Mon, Apr 23, 2012 at 10:25 PM, Leo Baltus
> <Leo.Baltus+grub2@tech.omroep.nl> wrote:
>> Op 23/04/2012 om 16:00:26 +0200, schreef Mads Kiilerich:
>>> On 04/23/2012 03:19 PM, Leo Baltus wrote:
>>>> Hi,
>>>>
>>>> I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
>>>> level 'linear'.
>>>>
>>>> On grub2-install is says:
>>> Exactly which full command is it that fails?
>> Im am working from a busybox shell, prepare my disk, mount on /mnt,
>> polulate it with rsync, bind mount dev on it and do
>>
>>        chroot /mnt grub2-install /dev/sda
>>> What do you have in /boot/grub2/device.map?
>>>
>> I'm not using a device.map
>>
>>>> error: unsupported RAID level: -1.
>>>> /sbin/grub2-probe: error: no such disk.
>>>> Auto-detection of a filesystem of /dev/md0 failed.
>>>>
>>>> Is this really unsupported?
>>>>
>> --
>> Leo Baltus, internetbeheerder                         /\
>> NPO ICT Internet Services                            /NPO/\
>> Sumatralaan 45, 1217 GP Hilversum, Filmcentrum, west \  /\/
>> beheer@omroep.nl, 035-6773555                         \/
>>
>> _______________________________________________
>> Grub-devel mailing list
>> Grub-devel@gnu.org
>> https://lists.gnu.org/mailman/listinfo/grub-devel
>
>


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko



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Re: grub2 md-linear unsupported?

[Leo Baltus]

Op 23/04/2012 om 23:02:45 +0800, schreef Bean:
> I believe it only support raid level 0/1/4/5/6/10. It's easy to add
> linear support, but i guess grub2 is currently in frozen state so you
> might need to wait a bit.

Thanks, I'll wait. 

> 
> On Mon, Apr 23, 2012 at 10:25 PM, Leo Baltus
> <Leo.Baltus+grub2@tech.omroep.nl> wrote:
> > Op 23/04/2012 om 16:00:26 +0200, schreef Mads Kiilerich:
> >> On 04/23/2012 03:19 PM, Leo Baltus wrote:
> >> >Hi,
> >> >
> >> >I just tested with grub2-1.99-13 (fedora16) on an md-device with raid-
> >> >level 'linear'.
> >> >
> >> >On grub2-install is says:
> >>
> >> Exactly which full command is it that fails?
> >
> > Im am working from a busybox shell, prepare my disk, mount on /mnt,
> > polulate it with rsync, bind mount dev on it and do
> >
> >        chroot /mnt grub2-install /dev/sda
> >>
> >> What do you have in /boot/grub2/device.map?
> >>
> >
> > I'm not using a device.map
> >
> >>
> >> >error: unsupported RAID level: -1.
> >> >/sbin/grub2-probe: error: no such disk.
> >> >Auto-detection of a filesystem of /dev/md0 failed.
> >> >
> >> >Is this really unsupported?
> >> >
> >>
> >

-- 
Leo Baltus, internetbeheerder                         /\
NPO ICT Internet Services                            /NPO/\
Sumatralaan 45, 1217 GP Hilversum, Filmcentrum, west \  /\/
beheer@omroep.nl, 035-6773555                         \/

Re: grub2 md-linear unsupported?

[Vladimir 'φ-coder/phcoder' Serbinenko]

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On 23.04.2012 17:09, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> On 23.04.2012 17:02, Bean wrote:
>> Hi,
>>
>> I believe it only support raid level 0/1/4/5/6/10. It's easy to add
>> linear support, but i guess grub2 is currently in frozen state so you
>> might need to wait a bit.
> It depends on the kind of the problem. If it's just small probe issue
> (like I suppose given that mdraid1x_linux.c has code to alias -1 to 0)
> then it can be fixed before 2.00. If it's something more serious it will
> have to wait.
I've confused -4 and -1. Supporting linear would need some non-trivial
changes to grub_diskfilter_make_raid even though diskfilter supports
such a config. So it's post-2.00 stuff. Meanwhile I recommend using LVM.

-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko



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