Imaging chain stalled on WJF00159 after FormTracePak Setup.exe forced
a reboot: SupportUser auto-logged in fine, briefly flashed something
(an HKLM\Run logon hook), then idle - no resume of Run-ShopfloorSetup.
Confirmed via diag-dispatcher.ps1: bay had AutoLogon working, RunOnce
empty, no Stage-Dispatcher.ps1 on disk, no setup-stage.txt.
Root cause: Run-ShopfloorSetup launches once from unattend XML's
FirstLogonCommands and has no self-resume mechanism. If anything cuts
it off mid-flight (FormTracePak Setup, eDNC MSI, Oracle install with
forced reboot, etc) the chain dies and nothing brings it back.
Stage-Dispatcher.ps1 in the repo is academic infrastructure that was
never wired into the live flow - startnet.cmd does not stage it and
nothing creates setup-stage.txt.
Fix: have Run-ShopfloorSetup register ITSELF as RunOnce at the top of
the script. The script is idempotent throughout (detection checks
skip already-done work) so re-entry post-reboot picks up cleanly.
Normal completion path removes the RunOnce so it does not re-fire
after the planned end-of-script reboot.
Also top up AutoLogonCount to 10 at script start. The unattend XML's
LogonCount=7 budget gets consumed across typical imaging reboots
(Office, Oracle, FormTracePak, Run-ShopfloorSetup explicit, sync-intune)
and an unplanned FormTracePak forced reboot pushes the counter past 0,
clearing AutoAdminLogon and parking the bay at the login screen.
Restoring the budget every Run-ShopfloorSetup entry keeps SupportUser
auto-logging in across any number of forced reboots until normal
completion. Lockdown's Autologon.exe sets its own AutoAdminLogon for
the ShopFloor user when it runs, so the post-completion natural
decrement to 0 does not affect the final state.
Verified via diag-dispatcher.ps1 capture on WJF00159 today - that bay
had AutoLogonCount=4 and no Stage-Dispatcher.ps1 on disk, which both
match this root cause + fix.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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