[Info-vax] Trying to boot a MicroVAX II with VMS 7.3

[JF Mezei]

Robert Jarratt wrote:
> I am trying various ways to boot my MicroVAX II. I am currently unable to do 
> this using MOP because 7.3 does not support DEQNA. So I am now trying 
> standalone backup using TK50. I created the kit on another machine running 
> 7.3 and put it into the MicroVAX II. After a while I got:
> 
> %SYSBOOT-F-PFN allocation overwrites CI ucode.

(help/message)

SYSBOOT-F-PFN allocation overwrites CI ucode

  Facility:     SYSBOOT, System Bootstrap Facility

  Explanation:  The allocation of physical pages for the system page table,
                nonpaged dynamic pool, interrupt stack, and resident
executive
                overwrites the CI microcode.

  User Action:  Reconfigure the system to require less physical memory, then
                reboot the system. Reduce the value of one or more
parameters
                that control the allocation of physical memory: NPAGEDYN,
                BALSETCNT, and VIRTUALPAGECNT (VAX only).




I can't seem to find my original Mivrovax II VAXVMSSYS.PAR file. But I
do have some leftovers in my current 192 meg (393216 pages) system:


MIN_PAGEDYN=1406464
MIN_NPAGEDYN=20132659  ! 10% of physical memory
MAX_NPAGEVIR=66437775   ! 33% of physical memory
!MAX_NPAGEVIR=100662784    ! 50% of physical memory - 1 page
MIN_SPTREQ=110100  ! 28% of physical memory (suggested by B treahy)
MIN_INTSTKPAGES=16


I had the 50% on for the MVII at 16 megs. Once I migrated to a 192 meg
system, the 50% became too large based on what I had read.

A 16 meg MVII has 32768 pages to work with instead of the 393216.

Also, ensure the sysgen parameter PHYSICAL_PAGES is set to 32768 or to -1.