Problem with Dell CERC ATA100/4Ch raid controller and linux 2.6.16.3kernel

Steven Nash Steven_Nash at compuserve.com
Fri Apr 14 08:04:33 CDT 2006


Paul,

I'm running FC3 on a 600SC with the CERC ATA100. I'm running kernel 2.6.9 (A
fedora build kernel).  I have build kernels to which work.

When using "make menu config" make sure the LSI New drivers is off and
Legacy is on, you can't have both.  Also I have the following in
/etc/modprobe.conf:
alias scsi_hostadapter megaraid_mbox
alias eth0 e1000
alias scsi_hostadapter1 aic7xxx
alias scsi_hostadapter2 megaraid_mbox
alias usb-controller ohci-hcd

Also don't use a kernel greater than 2.6.9 as you drives will go offline at
random intevals; note the CERC ATA is no longer being supported.

Hope this helps?
Steve

> -----Original Message-----
> From: linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Paul
> Sent: 12 April 2006 15:34
> To: linux-poweredge at dell.com
> Subject: Problem with Dell CERC ATA100/4Ch raid controller 
> and linux 2.6.16.3kernel
> 
>  
> Hi,
> 
> I have a Power Edge 600SC machine with a CERC ATA100/4Ch raid 
> controller. I
> am trying to create a custom kernel so that I can see all of 
> the memory I
> installed. At the moment the machine is running with the 
> 2.6.8 kernel using
> an initrd image that the red hat installer created.
> 
> 
> I have been unsuccessful booting off the new kernel. Upon 
> reboot I receive
> the following - can't find my block device type error:
> 
> Cannot open root device "sda1" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
> 
> 
> I am including the following drivers in my config:
> 
> SCSI disk support - BLK_DEV_SD
> LSI Logic RAID Device Drivers - MEGARAID_NEWGEN
> LSI Logic Management Module - MEGARAID_MM
> LSI Logic MegaRAID Driver - MEGARAID_MAILBOX
> LSI Logic Legacy MegaRAID driver - MEGARAID_LEGACY
> 
> 
> I know the drives are good because I can boot using a 2.6.8 
> kernel from the
> red hat installer using an initrd image.
> 
> lspci output when booted in 2.6.8 kernel:
> 
> 0000:00:00.0 Host bridge: ServerWorks GCNB-LE Host Bridge (rev 32)
> 0000:00:00.1 Host bridge: ServerWorks GCNB-LE Host Bridge
> 0000:00:02.0 Ethernet controller: Intel Corp. 82540EM Gigabit Ethernet
> Controller (rev 02)
> 0000:00:03.0 Ethernet controller: Intel Corp. 82557/8/9 
> [Ethernet Pro 100]
> (rev 0d)
> 0000:00:07.0 I2O: American Megatrends Inc. MegaRAID (rev 02)
> 0000:00:08.0 VGA compatible controller: ATI Technologies Inc 
> Rage XL (rev
> 27)
> 0000:00:0f.0 Host bridge: ServerWorks CSB6 South Bridge (rev a0)
> 0000:00:0f.1 IDE interface: ServerWorks CSB6 RAID/IDE 
> Controller (rev a0)
> 0000:00:0f.2 USB Controller: ServerWorks CSB6 OHCI USB 
> Controller (rev 05)
> 0000:00:0f.3 ISA bridge: ServerWorks GCLE-2 Host Bridge
> 
> 
> dmesg output when booted in 2.6.8 kernel:
> 
> megaraid: found 0x101e:0x1960:bus 0:slot 7:func 0
> scsi0:Found MegaRAID controller at 0xf881e000, IRQ:193
> megaraid: [6.62:1.03] detected 1 logical drives.
> megaraid: supports extended CDBs.
> megaraid: channel[0] is raid.
> megaraid: channel[1] is raid.
> megaraid: channel[2] is raid.
> megaraid: channel[3] is raid.
> scsi0 : LSI Logic MegaRAID 6.62 254 commands 16 targs 7 chans 7 luns
> Using anticipatory io scheduler
> scsi0: scanning scsi channel 0 for logical drives.
>   Vendor: MegaRAID  Model: LD 0 RAID5  714G  Rev: 6.62
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> scsi0: scanning scsi channel 1 for logical drives.
> scsi0: scanning scsi channel 2 for logical drives.
> scsi0: scanning scsi channel 4 [P0] for physical devices.
> scsi0: scanning scsi channel 5 [P1] for physical devices.
> scsi0: scanning scsi channel 6 [P2] for physical devices.
> scsi0: scanning scsi channel 7 [P3] for physical devices.
> 
> 
> 
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