fdisk unable to read /dev/sdb

Martha Flugstad MARTHAF at exchange.astate.edu
Fri May 7 20:23:15 CDT 2004

     The driver is loaded, I believe.  I see boot messages that indicate that it is.  It finds one logical drive, but when I use fdisk, I get the message that "unable to read /dev/sdb".  I am preparing to reinstall with AS 2.1 Update 4.
-----Original Message-----
From: Chris_Purcell at Dell.com [mailto:Chris_Purcell at Dell.com]
Sent: Friday, May 07, 2004 3:35 PM
To: Martha Flugstad; linux-poweredge at dell.com
Subject: RE: fdisk unable to read /dev/sdb

Is the driver for the PERC, to which the PowerVault is attached, loaded?
If not, you will need to load the driver, check that fdisk /dev/sdb (or whatever) returns a valid disk, and then remake the initrd so that driver loads consistently.
As well, you will want the driver for the PV's PERC to load after the driver for the PERC to which the boot drives are attached.
Chris T. Purcell
Americas Enterprise Services
Linux and Novell Hardware Support
Tues-Sat 0600-1500
-----Original Message-----
From: linux-poweredge-admin at dell.com [mailto:linux-poweredge-admin at dell.com] On Behalf Of Martha Flugstad
Sent: Thursday, May 06, 2004 10:40 AM
To: linux-poweredge at dell.com
Subject: fdisk unable to read /dev/sdb

     I have installed Red Hat AS 2.1 on a Poweredge 250 with a Powervault 220S attached.  The 220s has been configured as RAID 10.  However, when I tried to partition the logical drive on the RAID storage with fdisk, I received the error "unable to read /dev/sdb".  Can anyone help point me in the right direction?  Thanks for your help.
Martha Flugstad
Network Services
Arkansas State University
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