From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1MVNhR-000699-3g for garchives@archives.gentoo.org; Mon, 27 Jul 2009 10:44:57 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9C1E2E03F1; Mon, 27 Jul 2009 10:44:55 +0000 (UTC) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by pigeon.gentoo.org (Postfix) with SMTP id 26652E03F1 for ; Mon, 27 Jul 2009 10:44:55 +0000 (UTC) Received: (qmail invoked by alias); 27 Jul 2009 10:44:54 -0000 Received: from put92-4-82-231-50-6.fbx.proxad.net (EHLO [192.168.0.78]) [82.231.50.6] by mail.gmx.net (mp032) with SMTP; 27 Jul 2009 12:44:54 +0200 X-Authenticated: #5388774 X-Provags-ID: V01U2FsdGVkX1/Js3sJvTPJtw6uz+ASSrWSpsDa7+AkwgSrchpOGn /fc4k5zvac1V+D Message-ID: <4A6D8572.8060300@gmx.net> Date: Mon, 27 Jul 2009 12:46:10 +0200 From: Carlos User-Agent: Thunderbird 2.0.0.22 (X11/20090608) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] LiveCD installation not recognizing megaraid RAID set References: <5185b3ce0907270145q31445ccelc77437cae2bc87d7@mail.gmail.com> In-Reply-To: <5185b3ce0907270145q31445ccelc77437cae2bc87d7@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-Y-GMX-Trusted: 0 X-FuHaFi: 0.5 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 096f3f4f-49b1-4c2f-85e8-4c1db34dee50 X-Archives-Hash: a4d439354d4d4a89f5056f93b43ba53b Ho-Ki Au a =E9crit : > I was trying to put gentoo on a dell poweredge 1950 quadcore xeon machi= ne > with three disks connected to a lsi PERC 5/i raid controller. In the B= IOS > 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=3D'-ay' option, it came up not recognizing the RAID set, as I on= ly saw > "control" under /dev/mapper. modprobe megaraid was okay, so was modpro= be > raid5. Under /dev, I only saw sda, but there was no sdb, sdc. So it l= ooked > like there was only one disk but the system did not recognize it as a r= aid > set. Booting from LiveCD with dmraid=3D'-ay' doscsi didn't help. I go= t the > same result. If I did a dmraid -ay in bash, I got "No RAID disks". Co= uld > anyone point me to some instructions on how to make Gentoo recognize th= e > PERC 5/i RAID controller? >=20 > I tried both 32bit and 64bit gentoo and results were the same. >=20 > lspci showed: > 02:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller = 5 >=20 > 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 AN= SI: 5 > scsi 4:0:1:0: Direct-Access SEAGATE ST973402SS S206 PQ: 0 AN= SI: 5 > scsi 4:0:2:0: Direct-Access SEAGATE ST973402SS S206 PQ: 0 AN= SI: 5 > QLogic Fibre Channel HBA Driver > scsi 4:0:8:0: Enclosure DP BACKPLANE 1.05 PQ: 0 AN= SI: 5 > scsi 4:2:0:0: Direct-Access DELL PERC 5/i 1.03 PQ: 0 AN= SI: 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 >=20 > Thanks very much for your help! >=20 Your RAID set is being detected by the LiveCD. It looks as though you=20 have a RAID5 set using 3x72GB drives. This would be consistent with the=20 size of /dev/sda (144GB). Because it's hardware RAID, operating systems=20 don't usually access each individual disk but rather the disk set=20 presented by the controller. As mentioned by Neil, dmraid is for software RAID management. If you=20 want to manage your RAID controller or disk sets from Linux, you'll have=20 to find management software capable of doing this. Try the server=20 manufacture's site or the RAID manufacture's web site to see if such=20 software exists. Hope that helps, Carlos