Christian Affolter wrote:
Hmm, are you sure that your RAID has been recognized correctly? In case
you don't have another RAID-set or a standalone disk/CD Rom, your
RAID-set should be accessible as /dev/sda. So what's behind /dev/sda in
your case?
No, I'm not. But I cannot access /dev/sda.
From a terminal (LiveCD booted):
# fdisk /dev/sda
Unable to open /dev/sda
I may access /dev/sdb though (that's why the I installed Gentoo on sdb).
So, to summarize: Check that your RAID set has been recognized properly
before installing with the live-CD. Investigate why you only have one
SCSI device in contrast to two on the live CD (missing SCSI CD-ROM
support?).
I'm not sure how to do that. I'm not even sure if /dev/sdb is the actual
RAID or just one of the drives? But when I come to think about it...
when I try to boot the system, the Dell server actually boots from the
logical drive and it do find the kernel, hence /dev/sdb is infact the
RAID, right?
I also removed one of the drives, tried to boot (it finds the kernel),
then I removed the other drive and rebooted and it still finds the kernel).
Steve Dommett wrote:
> At this point does an 'lsmod' give any further clues? For instance is
> the LiveCD using the same driver for the RAID you are expecting to use
> after the reboot?
lsmod gives one interesting module: megaraid_sas (if I recall
correctly). And I guess this is one of the many LSI entries in kernel
configuration, and I have tried enabling them all.
>> sda: unknown partition table
> Ouch! Something is very wrong here. I don't think you're going much
> further until this one gets fixed.
I agree, something is wrong indeed!
> Are you sure you're running the same driver for the card as was used
> during the install?
Not at all and I don't know how to figure that out either. I was told to
check /sys/ from the LiveCD and check which module was used for /dev/sdb
but I couldn't find anything (that I found) interesting.
> Maybe you could try using genkernel to build the kernel, which will
> also create an initrd to autoload most needed modules just like the
> LiveCD.
I have tried that too! I have also tried genkernel and modified it to
build support for LSI drivers.
> Also, I doubt if this is necessary with a hardware RAID controller,
> but perhaps emerge'ing device-mapper is necessary. Perhaps also
> mdadm too, but I'm even more doubtful about that one.
I can't see how this could make any difference when I can't even mount
the root device? Anyway, I'm desperate and will try this as soon as I can.
Thanks for your help,
-Patrik
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