Re: Installing freeBSD on an Intel RAID5 partition

Jerry McAllister wrote:
On Wed, Oct 10, 2007 at 03:35:54PM +0800, nodje wrote:

I couldn't find any answer to the question.The problem is that the installer
shows up all the disks instead of proposing to install somewhere on the
RAID5 partition, in other words, it just doesn't recognize the RAID5.
Is it possible at all to install freeBSD on one of those RAID??

I've found out that this is also a problem with the few linux distros I've
tried. I've heard it was possible now but I'm a little bit surprised by the
slow adoption I must say.

I had something look similar to that on a Dell 2950.
It put out lots of lines for each separate drive including a device
controler name. But I had to dig through the boot messages carefully
to find a device name for the raid controller. But, it was there. Once
I found it, things went just fine. I may have done something manually
with fdisk or maybe dd to the raid device before getting things to
be happy. I don't remember exactly.

Unfortunately, I had to load Susie 10 Linux on it so I can't look back
right now. It also would have been a Dell Perc something, probably 5.
So, the device name might be different from the Intel.

But, keep searching.
Strange -- I have PowerEdge 1600 with RAID-5 (3disks) installer worked
just fine.

FreeBSD 6.2-RELEASE-p5 #0: Thu Jun 28 17:57:32 UTC 2007

real memory = 2147418112 (2047 MB)
avail memory = 2096361472 (1999 MB)
MPTable: <DELL PE 011B >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 1
cpu1 (AP): APIC ID: 0

aacd0: <RAID 5> on aac0
aacd0: 139997MB (286714368 sectors)


df
Filesystem Size Used Avail Capacity Mounted on
/dev/aacd0s1a 989M 81M 829M 9% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/aacd0s1d 1.9G 140K 1.8G 0% /tmp
/dev/aacd0s1e 6.8G 1.9G 4.4G 30% /usr
/dev/aacd0s1g 24G 67M 22G 0% /usr/home
/dev/aacd0s1f 24G 506M 22G 2% /var
/dev/aacd0s1h 70G 3.2G 62G 5% /x1
devfs 1.0K 1.0K 0B 100% /var/named/dev

This worked out of the box with GENERIC kernel on i386

Kernel config custom snippets:
########## SCSI
device scbus # SCSI Subsystem
device ahc # AHA2940 and onboard AIC7xxx devices
device da # Direct Access (disks)
device cd # CD
device ses # SCSI Environmental Services (and SAF-TE)
device aac



--
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Philip M. Gollucci (philip@xxxxxxxxxxxxxx) c:323.219.4708 o:703.749.9295x206
Senior System Admin - Riderway, Inc.
http://riderway.com / http://ridecharge.com
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