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From: John Baldwin <jhb@freebsd.org>
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Date: Sat, 17 Nov 2007 12:31:24 -0500
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Cc: chat@freebsd.org
Subject: Re: loader and "Could not find Primary Volume Descriptor"
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On Friday 16 November 2007 01:55:06 pm Jeremy C. Reed wrote:
> Trying to boot PC-BSD 1.4.1 and I get:
>=20
> CD Loader 1.2
> Building the boot loader arguments
> Looking up /BOOT/LOADER... Found
> Read error: 0x10
> Could not find Primary Volume Descriptor

=46rom Ralf Brown's interrupt list error codes for disk I/O:

10h    uncorrectable CRC or ECC error on read

The part about the primary volume descriptor is a bug in cdboot where the
read error message doesn't have a trailing \0, so it writes out both errors
on a read error.  I'll fix that part, but your BIOS is claiming it got a
CRC error while trying to read /boot/loader in off the CD.  If you mount
the CD under a running system can you read all of /boot/loader ok?  (Maybe
compare md5 with a known good copy of /boot/loader.)

=2D-=20
John Baldwin