Bug#601974: regression: grub-probe can not find /dev/xvda1 (block device inside XEN)

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 11/01/2010 11:30 PM, Csillag Kristof wrote:
> 2010-11-01 18:26 keltezéssel, Vladimir 'φ-coder/phcoder' Serbinenko írta:
>   
>> [...]
>>     
>>> With new grub, this returns:
>>>
>>> # grub-probe -t abstraction --device /dev/xvda1 -v
>>> grub-probe: info: /dev/xvda1 starts from 0.
>>> grub-probe: info: opening the device hd0.
>>> grub-probe: error: cannot find a GRUB drive for /dev/xvda1.  Check your
>>> device.map.
>>>
>>> As I have already shown, device.map contains this:
>>>
>>>     (hd0)    /dev/xvda
>>>
>>> so it might try to open /dev/xvda, which is a fake device, it does not
>>> exist.
>>> Only xvda1 and xvda2 exists.
>>> Old grub could cope with this.
>>>
>>>
>>>   
>>>     
>>>       
>> Could you try removing this entry?
>>   
>>     
> With line from device.map removed:
>
> # grub-probe -t abstraction --device /dev/xvda1 -v
> grub-probe: info: /dev/xvda1 starts from 0.
> grub-probe: info: opening the device /dev/xvda.
> grub-probe: error: cannot find a GRUB drive for /dev/xvda1.  Check your
> device.map.
>
> The result is different, but still does not work.
>
> I have also tried to remove the (fake) /dev/xvda device. The result is:
>
> # grub-probe -t abstraction --device /dev/xvda1 -v
> grub-probe: info: /dev/xvda1 starts from 0.
> grub-probe: info: opening the device /dev/xvda.
> grub-probe: error: cannot find a GRUB drive for /dev/xvda1.  Check your
> device.map.
>
> When testing with devices.map entry, but fake xvda removed:
>
> # grub-probe -t abstraction --device /dev/xvda1 -v
> grub-probe: info: Cannot stat `/dev/xvda', skipping.
> grub-probe: info: /dev/xvda1 starts from 0.
> grub-probe: info: opening the device /dev/xvda.
> grub-probe: error: cannot find a GRUB drive for /dev/xvda1.  Check your
> device.map.
>
>     * * *
>
> Anything else to test?
>   
The case with both device.map entry and fake device removed, this is the
correct way of doing it.
>     Csillag
>
>
>   


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


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