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From: "Gayn Winters" <gayn.winters@bristolsystems.com>
To: "'Mike Jeays'" <Mike.Jeays@rogers.com>, <freebsd-questions@freebsd.org>
Date: Sat, 29 Oct 2005 19:00:26 -0700
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Subject: RE: DMA errors
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> -----Original Message-----
> From: owner-freebsd-questions@freebsd.org 
> [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Mike Jeays
> Sent: Saturday, October 29, 2005 4:28 PM
> To: freebsd-questions@freebsd.org
> Subject: DMA errors
> 
> 
> I have a 40GB Maxtor D740X-6L disk, and have been unable to 
> install 5.4 or 6.0 on it.  I get errors:
> 
> ad0: FAILURE WRITE_DMA STATUS=51 <READY,DSC,ERROR> error=84 (IRC,
> ABORTED) LBA=..
> 
> as soon as I try to commmit the changes in sysinstall.
> 
> I have checked that the IDE cable is the 80-wire type, and cleaned up
> the connections and so on.
> 
> I tried installing Ubuntu on this disk, and everything went 
> perfectly. 
> (Those guys have done a really great job, by the way).
> 
> Is there some configuration trick I have missed?
> 

Well, my first guess would be that you have a cable problem. Try a new
cable and/or make sure that the disk is on the master plug (at the end
of the 80-wire cable) and that the jumper on the drive is set to master
(DS and not cable select CS). 

If you still have a problem, pls list mboard, controller, and give
output of fdisk and bsdlabel. (Do the latter before trying the commit.)


-gayn

Bristol Systems Inc.
714/532-6776
www.bristolsystems.com