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View Full Version : Why is KNOPPIX the only distribution that can see my RAID??



hissingshark
07-27-2007, 12:45 PM
HI there,

I'm trying to make the long walk from WinXP Pro to Linux.

I've got striped RAID running on an nForce2 motherboard.
That uses the Silicon Image SiL3112a Controller which DMRAID apparently supports.
From my reading here it represents "fake raid".

I first used the KNOPPIX live CD and was delighted to see how easy it all was and was encouraged to stick with Linux.
It saw all my devices straight out of the box as it were, proving that my RAID can work with Linux.

Now I'm confused having tried other distributions.
I've got an 80Gb emergency drive which I installed Ubuntu 7.04 onto.
My hope is to maintain XP on the RAID and keep my media files etc over there.
But the RAID doesn't feature on the devices list. I've tried Fedora too and same problem.

WHat is KNOPPIX doing that the others aren't?
And how can I transfer this magic to another distribution?

I ran:
sudo dmraid -r
and got
/dev/sda: sil, "sil_afadddbhabeb", stripe, ok, 321669888 sectors, data@ 0
/dev/sdb: sil, "sil_afadddbhabeb", stripe, ok, 321669888 sectors, data@ 0

There are the boys.
So I ran:
sudo dmraid -ay
And got
RAID set "sil_afadddbhabeb" already active
RAID set "sil_afadddbhabeb1" already active

Looking with:
sudo dmraid -s
i get
*** Active Set
name : sil_afadddbhabeb
size : 643339776
stride : 32
type : stripe
status : ok
subsets: 0
devs : 2
spares : 0

And:
sudo ls /dev/mapper
Tells me:
control sil_afadddbhabeb sil_afadddbhabeb1

Is it "control" that needs the attention here?

Many thanks in advance folks,