Bug#495949: grub-common: grub-probe segfaults

[Jean-Luc Coulon (f5ibh)]

Hi Félix

>Well:
>grub install "(md0)' leads to the same error message
>
>grub-install /dev/sda then grun-install /dev/sdb leads to other 
>problems: the device naming is not consistant from one boot to 
> another. Sometimes I've md0 with /dev/sda1 and /dev/sdb1 and 
> sometimes with sdb1 and adc1 while they are the same phisycal disks.
>So /boot/grub/device.map doesnt reflects always the real (logcal) 
> configuration of the system. This can produce erroror.

As I've seen there is a new version, I've tried again:

sudo grub-install '(md0)'

... and it failed with the following message


[jean-luc at tangerine] % sudo grub-install '(md0)'
grub-setup: warn: Attempting to install GRUB to a partitionless disk.  
This is a BAD idea.
grub-setup: error: Embedding is not possible, but this is required when 
the root device is on a RAID array or LVM volume.

I had a look in my raid configuration:
The devices.map files has

(hd0)   /dev/sda
(hd1)   /dev/sdb

But depending the way the system start, the device name is not 
consistant from a session to an other one. 

This time md0 was /dev/sdb1, /dev/sdc1

Today /dev/sda was grabbed by an external USB disk…

I edited devices.map:

(hd0)   /dev/sdb
(hd1)   /dev/sdc

And this time everything went fine.
jean-luc at tangerine] % sudo grub-install '(md0)'
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install'.

(hd0)	/dev/sdb
(hd1)	/dev/sdc


Is there a mean not to have to edit by hand devices.map each time the 
system is rebooted? Maybe a warning as when the result is successful 
about possibly wrong devices.map?

Regards

Jean-Luc



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