Port-vax archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: installboot is broken

On 2013-03-24 19:25, Anders Magnusson wrote:
On 03/24/2013 05:48 PM, Martin Husemann wrote:
On Sun, Mar 24, 2013 at 04:39:45PM +0100, Anders Magnusson wrote:
Vax only have one bootblock which is installed in the first 16 sectors
on the disk.
The boot block is the same for all different disk types. Which is
nice :-)
Yes, indeed - but Jonny claims the conversion to this sheme broke
preparation of completely zeroed/new disks for 11/750 and others (but
not for micro vaxen, which is the only hardware I have).
You mean the installboot usage, or something else?  Vax has had a
unified boot block on NetBSD ~forever.  It was installed by newfs
earlier but now it needs installboot.

I thought I remembered disklabel doing the installation of the boot block, but I might be misremembering.

VAX have everything needed to read UFS installed in the first 8k of disk
with the important asm stuff in block 0 and 1 on the disk, depending on HW.

Yes. Except now we are not getting any of the important asm stuff in block 0, which is the problem. Block 0 does not contain anything meaningful except for a couple of magic numbers (and the disk label).

All machines that have PROM-VMB + 11/750 and VAX8200 (with ROM routines)
works correctly.

I wonder. Does the 11/750 really work now? I have a feeling it will not.

For other machines the boot program is installed on the frontend media
(RX11, RL02 or something) so the boot blocks are never used.

Ragge, that was ages ago. :-)
We have not used out own boot program on the FE media since 2.0 or something. I still have a copy around on my FE RL02 just in case something really bad happens, and I need it, but I have not used it in ages.


Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt%softjar.se@localhost             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

Home | Main Index | Thread Index | Old Index