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From: "N.J. Thomas" <thomas@zaph.org>
To: "Snorre D. ?verb?" <snorre@overbo.no>, freebsd-questions@freebsd.org
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Subject: Re: Disk errors on installing FreeBSD 7.0
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* "Snorre D. ?verb?" <snorre@overbo.no> [2008-08-07 15:29:11+0000]:
> When I boot up with the installation DVD these error messages appear
> on the screen.
> 
> ad1: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0055347
> ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0
> etc

I got the same exact errors trying to install 7.0-RELEASE on two
different Dell boxes. One was 4 years old, the other was brand new (3
months ago).

Never was able to fix the problem. For the older one, I plugged in an
external DVD drive and installed via that. For the other one, I
installed via a mini-install disk, and then did a minimal network
install.

For the record, they both had SATA drives and the disks worked (and
still work) fine after the OS was installed. It was just copying the
base system off the CD that was causing errors.

Thomas