Re: writing cdhdtape to CD

["Michael L. Hitch" <mhitch%lightning.msu.montana.edu@localhost>]

On Thu, 28 May 2009, Ray Phillips wrote:

> (boot dkc400.4.0.11.0 -flags a)
> block 0 of dkc400.4.0.11.0 is a valid boot block
> reading 82 blocks from dkc400.4.0.11.0
> bootstrap code read in
> base = 1d8000, image_start = 0, image_bytes = a400
> initializing HWRPB at 2000
> initializing page table at 1ca000
> initializing machine state
> setting affinity to the primary CPU
> jumping to bootstrap code
>
> NetBSD/alpha 5.0 ustar Bootstrap, Revision 1.3
> (builds%b4.netbsd.org@localhost, Sun Apr 26 05:45:58 UTC 2009)
>
> VMS PAL rev: 0x1000000010114
> OSF PAL rev: 0x1000000020116
> Switch to OSF PAL code succeeded.
>
> Boot flags: a
> 9784992@@@@@@@@@read text: Input/output error

  This would appear that it started reading the kernel, and I believe the 
'@' symbols indicate errors while reading the media.

> @@@@@@@@@open netbsd.gz: Input/output error
> @@@@@@@@@open netbsd.bak: Input/output error
> @@@@@@@@@open netbsd.bak.gz: Input/output error
> @@@@@@@@@open netbsd.old: Input/output error
> @@@@@@@@@open netbsd.old.gz: Input/output error
> @@@@@@@@@open onetbsd: Input/output error
> @@@@@@@@@open onetbsd.gz: Input/output error
> @@@@@@@@@open netbsd.alpha: Input/output error
> @@@@@@@@@open netbsd.alpha.gz: Input/output error

  After getting errors reading the kernel, the boot program falls back to 
a list of other potential kernels, and gets errors reading them.

> I wonder if there's something wrong with the way I'm burning the cdhdtape 
> file to the CD?

  Have you tried using the alphacd.iso instead?  I don't think I've ever 
tried using the cdhdtape image since the iso images were being generated.

  Another thing I found (quite some time ago) was that burning the CD 
images at single speed worked better in the various DEC machines I have. 
This may only be applicable when using the original CD drives in the DEC 
systems.

--
Michael L. Hitch                        mhitch%montana.edu@localhost
Computer Consultant
Information Technology Center
Montana State University        Bozeman, MT     USA