LiveCD installation not recognizing megaraid RAID set

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I was trying to put gentoo on a dell poweredge 1950 quadcore xeon machine
with three disks connected to a lsi PERC 5/i raid controller.  In the BIOS
settings, all three disks were added to the controller for a RAID5 set up.
 When I boot from LiveCD (2008 version with 2.6.24-r5 kernel) with
dmraid='-ay' option, it came up not recognizing the RAID set, as I only saw
"control" under /dev/mapper.  modprobe megaraid was okay, so was modprobe
raid5.  Under /dev, I only saw sda, but there was no sdb, sdc.  So it looked
like there was only one disk but the system did not recognize it as a raid
set.  Booting from LiveCD with dmraid='-ay' doscsi didn't help.  I got the
same result.  If I did a dmraid -ay in bash, I got "No RAID disks".  Could
anyone point me to some instructions on how to make Gentoo recognize the
PERC 5/i RAID controller?

I tried both 32bit and 64bit gentoo and results were the same.

lspci showed:
02:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller 5

dmesg showed:
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
megasas: 00.00.03.10-rc5 Thu May 17 10:09:32 PDT 2007
megasas: 0x1028:0x0015:0x1028:0x1f03: bus 2:slot 14:func 0
ACPI: PCI Interrupt 0000:02:0e.0[A] -> GSI 78 (level, low) -> IRQ 17
megasas: FW now in Ready state
scsi4 : LSI Logic SAS based MegaRAID driver
scsi 4:0:0:0: Direct-Access     SEAGATE  ST973402SS       S206 PQ: 0 ANSI: 5
scsi 4:0:1:0: Direct-Access     SEAGATE  ST973402SS       S206 PQ: 0 ANSI: 5
scsi 4:0:2:0: Direct-Access     SEAGATE  ST973402SS       S206 PQ: 0 ANSI: 5
QLogic Fibre Channel HBA Driver
scsi 4:0:8:0: Enclosure         DP       BACKPLANE        1.05 PQ: 0 ANSI: 5
scsi 4:2:0:0: Direct-Access     DELL     PERC 5/i         1.03 PQ: 0 ANSI: 5
scsi 4:0:8:0: Attached scsi generic sg1 type 13
sd 4:2:0:0: [sda] 284164096 512-byte hardware sectors (145492 MB)
sd 4:2:0:0: [sda] Write Protect is off
sd 4:2:0:0: [sda] Mode Sense: 1f 00 10 08
sd 4:2:0:0: [sda] Write cache: disabled, read cache: disabled, supports DPO
and FUA
sd 4:2:0:0: [sda] 284164096 512-byte hardware sectors (145492 MB)
sd 4:2:0:0: [sda] Write Protect is off
sd 4:2:0:0: [sda] Mode Sense: 1f 00 10 08

Thanks very much for your help!

-- 
-hoki

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I was trying to put gentoo on a dell poweredge 1950 quadcore xeon
machine with three disks connected to a lsi PERC 5/i raid controller.=C2=A0
In the BIOS settings, all three disks were added to the controller for
a RAID5 set up. =C2=A0When I boot from LiveCD (2008 version with 2.6.24-r5
kernel) with dmraid=3D'-ay' option, it came up not recognizing the =
RAID
set, as I only saw "control" under /dev/mapper. =C2=A0modprobe me=
garaid was
okay, so was modprobe raid5. =C2=A0Under /dev, I only saw sda, but there wa=
s
no sdb, sdc. =C2=A0So it looked like there was only one disk but the system
did not recognize it as a raid set. =C2=A0Booting from LiveCD with dmraid=
=3D'-ay' doscsi didn't help. =C2=A0I got the same result.=C2=A0=
 If I did a dmraid -ay in bash, I got "No RAID disks".=C2=A0 Coul=
d anyone
point me to some instructions on how to make Gentoo recognize the PERC
5/i RAID controller?<br>
<br>
I tried both 32bit and 64bit gentoo and results were the same.<br>
<br>
lspci showed:<br>
02:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller 5<br=
>
<br>
dmesg showed:<br>
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)<br>
megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)<br>
megasas: 00.00.03.10-rc5 Thu May 17 10:09:32 PDT 2007<br>
megasas: 0x1028:0x0015:0x1028:0x1f03: bus 2:slot 14:func 0<br>
ACPI: PCI Interrupt 0000:02:0e.0[A] -&gt; GSI 78 (level, low) -&gt; IRQ 17<=
br>
megasas: FW now in Ready state<br>
scsi4 : LSI Logic SAS based MegaRAID driver<br>
scsi 4:0:0:0: Direct-Access=C2=A0=C2=A0=C2=A0=C2=A0 SEAGATE=C2=A0 ST973402S=
S=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 S206 PQ: 0 ANSI: 5<br>
scsi 4:0:1:0: Direct-Access=C2=A0=C2=A0=C2=A0=C2=A0 SEAGATE=C2=A0 ST973402S=
S=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 S206 PQ: 0 ANSI: 5<br>
scsi 4:0:2:0: Direct-Access=C2=A0=C2=A0=C2=A0=C2=A0 SEAGATE=C2=A0 ST973402S=
S=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 S206 PQ: 0 ANSI: 5<br>
QLogic Fibre Channel HBA Driver<br>
scsi 4:0:8:0: Enclosure=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 DP=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 BACKPLANE=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0 1.05 PQ: 0 ANSI: 5<br>
scsi 4:2:0:0: Direct-Access=C2=A0=C2=A0=C2=A0=C2=A0 DELL=C2=A0=C2=A0=C2=A0=
=C2=A0 PERC 5/i=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1.03 PQ: 0 =
ANSI: 5<br>
scsi 4:0:8:0: Attached scsi generic sg1 type 13<br>
sd 4:2:0:0: [sda] 284164096 512-byte hardware sectors (145492 MB)<br>
sd 4:2:0:0: [sda] Write Protect is off<br>
sd 4:2:0:0: [sda] Mode Sense: 1f 00 10 08<br>
sd 4:2:0:0: [sda] Write cache: disabled, read cache: disabled, supports DPO=
 and FUA<br>
sd 4:2:0:0: [sda] 284164096 512-byte hardware sectors (145492 MB)<br>
sd 4:2:0:0: [sda] Write Protect is off<br>
sd 4:2:0:0: [sda] Mode Sense: 1f 00 10 08<br>
<br>
Thanks very much for your help!<br clear=3D"all"><br>-- <br>-hoki<br>

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