microvax2 unable to boot quasijarus0c

[RSX11MPLUS]

• Context

  i have an ra92 disk image (created within simh) with quasijarus0c installed from tape. this image will boot normally on a real, similarly configured ka630, but hangs (i believe trying to find a boot block) within the microvax2 simh. it is also not possible to initiate the install from tape due to an I/O error on the controller:

=copy
cpu: uVAX II
From: tms(0,1)
To: ra(0,1)
ra: I/O error
ra(0,0,0,1): can't read disk label

i have confirmed this behavior occurs on every ra8x/9x series drive and both rqdx3 and kda50 controllers.

• the output of "sim> SHOW VERSION" while running the simulator which is having the issue

  sim> sh ver
  MicroVAX II (KA630) simulator Open SIMH V4.1-0 Current
  Simulator Framework Capabilities:
      64b data
      64b addresses
      Threaded Ethernet Packet transports:PCAP:TAP:NAT:UDP
      Idle/Throttling support is available
      Virtual Hard Disk (VHD) support
      Asynchronous I/O support (Lock free asynchronous event queue)
      Asynchronous Clock support
      FrontPanel API Version 12
  Host Platform:
      Compiler: GCC 12.2.0
      Simulator Compiled as C arch: x64 (Release Build) on Mar  8 2024 at 20:45:23
      Build Tool: simh-makefile
      Memory Access: Little Endian
      Memory Pointer Size: 64 bits
      Large File (>2GB) support
      SDL Video support: SDL Version 2.28.5, PNG Version 1.6.40, zlib: 1.3
      PCRE RegEx (Version 8.45 2021-06-15) support for EXPECT commands
      OS clock resolution: 1ms
      Time taken by msleep(1): 1ms
      Ethernet packet info: libpcap version 1.10.4
      OS: FreeBSD datz.lab.rsx11m.io 14.0-RELEASE FreeBSD 14.0-RELEASE #0 releng/14.0-n265380-f9716eee8ab4: Fri Nov 10 05:57:23 UTC 2023     root@releng1.nyi.freebsd.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64
      tar tool: bsdtar 3.7.1 - libarchive 3.7.1 zlib/1.3 liblzma/5.4.4 bz2lib/1.0.8 libzstd/1.5.2
      curl tool: curl 8.6.0 (amd64-portbld-freebsd14.0) libcurl/8.6.0 OpenSSL/3.0.12 zlib/1.3 libpsl/0.21.2 libssh2/1.11.0 nghttp2/1.58.0
      git commit id: 625b9e8d
      git commit time: 2023-11-16T16:23:53-0800

• how you built the simulator or that you're using prebuilt binaries

  built with BSD build instructions (gmake, gcc, etc)

• the simulator configuration file (or commands) which were used when the problem occurred.

  
  set cpu 13m, idle, conhalt

set rq en set rq0 ra92 at rq0 wooyoo-43bsd-root.ra92 set tq en set tq0 lock at tq0 4.3BSD-Quasijarus0c.tap

set xq en at xq0 em0

b cpu

- #### the expected behavior and the actual behavior

KA630-A.V1.3

Performing normal system tests.

5..4..3..

Tests completed.

b

2.. <--- hangs here Simulation stopped, PC: 0000130B (BITW #8080,(R7))

- #### you may also need to provide specific pointers to data files that may be necessary to demonstrate the problem
can provide my disk image if it helps

[rms47]

Did quasijarus0c support CVAX (MicroVAX 3900)? If so, does this procedure - building and trying to boot quasijarus0c - work or fail on CVAX?

[hbent]

Perhaps the fix from ccdc5d0711ac68f3c521610731b13f482af57cd3 will solve the issue here?