[CentOS] i can't install centos on my poweredge 2950

Eric Doutreleau Eric.Doutreleau at it-sudparis.eu
Tue Aug 24 08:53:05 UTC 2010


well
yes the drive is bootable as i can boot from it
it s when the kernel need to find the root device that it s the problem
it s like it can't find the volume group


Le 23/08/2010 15:44, m.roth at 5-cent.us a écrit :
> Eric Doutreleau wrote:
>>
>> i m trying to install centos5 on my poweredge 2950 with no luck.
>> the raid controler is LSI Logic / Symbios Logic MegaRAID SAS 1078 (rev 04)
>>
>> indeed all is going fine during the installation but when i reboot the
>> server panic
>>
>> the first error i got is this one
>> error mounting /dev/root on /sysroot as ext3: block device required
>>
>> it seems that it can't find the /dev/root devices.
>>
>> but when i boot in rescue mode the / partition is found without any
>> problem. i can chroot in it
>
> Does the PERC controller know that the drive you want to boot off of is
> bootable? Have you<ctrl-r>'d into the controller before boot, and then
> gone to control (there's virtual disks, PD, and the third thing, I forget
> exactly what it's called, but I'll be able to tell you later today), and
> down on the bottom, just to the right of center, it displays the bootable
> drive. Though it doesn't *look* like it, if you tab down there and down
> arrow, it will display choices....
>
> Oh, and you did note that no matter how you set it up, it *ALWAYS* wants
> slots 2&  3 to be RAID group 0, and the drives in slots 0 and 1 to be
> group 2?
>
> Oh, yes, and it also *REFUSES* to display any drive that's not raided,
> even if you want your boot and root on a drive that's not raided....
>
> I decided Friday that this *thing* was designed and signed off on by
> two-toothed idiots with IQs around 57, decended from generations of the
> same who couldn't manage to run a farm, whose ancestors came to the US by
> selling themselves as indentured servants, who once they were here were
> *fired* because they were too stupid to follow directions....
>
>           mark "would you like me to *really* tell you how I feel about them?"
>
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