Installing F7 on 64-bit Dual Opeteron System w/Hardware Raid

Giancarlo del Rossi gdelrossi at
Thu Jun 14 08:07:16 UTC 2007

RICHARD ha scritto:
> I believe the raid are scsi (they usally show up as sda and sdb) and I
> don't remember if it is integrated into the mb or a separate controller.
> (I didn't set up the system and I think there are both but I don't know
> which we ended up using.)
> The system has 2gb of ram. I would be happy to dispense with the raid for
> the moment and just get the system booting off of one of the two ide
> drives.
> Rick
> Rick Bilonick
> mailto:rab at
The ide disk use the block device /dev/hdX, and is very strange that 
your disk is recognized same a scsi device.
Usb,sata,sas,scsi use the sdX block system

The first step is to understand what type of hd device your system 
recognize, and the raid array configuration

If you have the FC7 installed, go under the /proc/scsi and /proc/ide dir 
and see what hw the system use.

Is a example for my sata system :

ll /proc/scsi/
totale 0
-r--r--r-- 1 root root 0 14 giu 09:36 device_info
-r--r--r-- 1 root root 0 14 giu 09:36 scsi
dr-xr-xr-x 2 root root 0 14 giu 09:36 sg

 cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: MAXTOR STM332082 Rev: 3.AA
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: Optiarc  Model: DVD RW AD-7170S  Rev: 1.00
  Type:   CD-ROM                           ANSI  SCSI revision: 05

In every cases, its important the raid hw and the configuration of the array

When i asked if your system use a raid controller embedded with the 
mainboard, was because many hw producers use a software raid intestead 
directly into the bios.

This is a false raid controller and linux dont discovery the bios array 
but the disk directly.

Use a lspci command to see what pci hw the system use, and if you want 
more information use the -v flags

I think that a visual inspection of your system is a nice idea to 
understand the hw configuration.



Giancarlo del Rossi
System Administrator
EnterMED s.r.l - Via liberta' 56 - 90143 Palermo
+39917303009 - +3991305023 - +3497609610 - gdelrossi at
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