Grub seem to not check for /dev/md?

[Froggy]

On 13.04.2011 17:14, Froggy wrote:
>> /usr/sbin/grub-probe: error: no such disk.
>> Auto-detection of a filesystem of /dev/md5 failed.
>Do you have mdadm installed? Do you have /dev/md/5 node? if the problem
>is former, please install mdadm. If the latter, the attached patch may help

So, i didn't have /dev/md/5 and it is the difference beetween booting on
my kernel and on the debian live CD in rescue mode. mdadm is installed.
I cp -a /dev/md5 to /dev/md/5

When i try grub-install /dev/md/5 i got a new error :
/usr/sbin/grub-setup: error: unable to identify a filesystem in hd4;
safety check can't be performed

But using grub-install /dev/sda or grub-install /dev/sde success.

Thats good for me, but i dont know if it is a bug or if my system isn't
clear.

Regards,