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vms-b81: conversational boot — SYSBOOT> halts before executive attach - #301

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vms-b81-conversational-boot
Aug 11, 2026
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vms-b81-conversational-boot

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Closes the last boot-mechanism gap in the 0.4 "boots faithfully" milestone.

A boot-flag register (substrate analogue of VMS R5) is plumbed through boot.sh/run-qemu.sh (ovmx.flags=). With the conversational bit set, PID 1 halts at a SYSBOOT> prompt on the console before any banner and before executive_attach, implementing against the loaded parameter set:

  • SHOW <param> (byte-shaped to the §3.1 capture), SHOW /STARTUP
  • SET <param> <value>, USE CURRENT|DEFAULT, CONTINUE, WRITE
  • VMS persistence: SET affects this boot only; the parameter file is rewritten only by explicit WRITE.

Static PID 1 — raw console reads, no readline. New src/ovmx_init/sysboot.{c,h} + tests/qemu/test_sysboot_conversational.sh; early-boot output-ordering assertions added to test_executive_integral.sh.

Design: docs/design-boot-faithful.md §2.2/§3.1/§4.2. Item: vms-b81.

🤖 Generated with Claude Code

Adds a boot-flag register (substrate analogue of VMS R5) plumbed through
boot.sh/run-qemu.sh (ovmx.flags=). With the conversational bit set, PID 1
halts at a "SYSBOOT> " prompt on the console before any banner and before
executive_attach, implementing SHOW / SET / USE CURRENT|DEFAULT / CONTINUE /
WRITE against the loaded parameter set with VMS SET-vs-WRITE persistence
(SET affects this boot; only WRITE rewrites the file). Static PID 1: raw
console reads, no readline. Prompt text exactly 'SYSBOOT> '.

New: src/ovmx_init/sysboot.{c,h}, tests/qemu/test_sysboot_conversational.sh.
Wired into ovmx_init.c; early-boot output-ordering assertions added to
test_executive_integral.sh.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@baron-3dl
baron-3dl force-pushed the vms-b81-conversational-boot branch from 7fa51ca to 3fd5564 Compare August 11, 2026 05:52
@baron-3dl
baron-3dl merged commit 3621f4b into main Aug 11, 2026
53 checks passed
baron-3dl added a commit that referenced this pull request Aug 11, 2026
…in diagnostics) (#321)

* vms-832: bump OVMX_PRODUCT_VERSION to V0.3-3

Third point release off tag 0.3-2, cut through the RE machinery
(vms-a84). Payload: conversational boot (#301), DCL Phase 2
facade-kills (ASSIGN->real logical names #316, STOP->real
sys$delprc #318, SET PASSWORD->real SYSUAF hash change #319), and
rejoin isolation diagnostics (#314/#317/#320). No test hardcodes the
version literal -- tests/libvms/test_identity.c and friends all
compare against the OVMX_PRODUCT_VERSION macro, so no de-hardcoding
was needed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* vms-832: generate V0.3-3 release notes (boot + DCL Phase 2 + rejoin diagnostics)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: alice <alice@workspace.local>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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