On 03/24/2013 05:48 PM, Martin Husemann wrote:
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.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).
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.
All machines that have PROM-VMB + 11/750 and VAX8200 (with ROM routines) works correctly. For other machines the boot program is installed on the frontend media (RX11, RL02 or something) so the boot blocks are never used.
-- Ragge