The PXE server address appeared 14 times and the share credentials 13, so moving
the server or rotating the account meant editing every net use in the file and
rebuilding boot.wim - with no way to tell from a diff whether one had been
missed. Now set once at the top as PXESERVER / SHAREUSER / SHAREPASS.
Exactly one literal address remains, the definition on line 6. Prose in REM
comments is left alone so the paths stay readable.
This also reaches the post-boot self-heal for free. startnet already writes
C:\Enrollment\fetch-source.txt, and both Fetch-StagingPayload.ps1 and
Verify-And-Heal-Staging.ps1 read it (line1=UNC, line2=user, line3=pass) with
their own hardcoded values only as a fallback. Confirmed on 579C144:
[13:30:35] [INFO] fetch-source.txt: UNC=\172.16.9.1\enrollment user=pxe-upload
[13:30:36] [INFO] Mounting \172.16.9.1\enrollment as Z: (attempt 1/5)...
so the seeded file wins and the heal follows PXESERVER automatically. My earlier
claim that the heal scripts were hardcoded was wrong - they were already
config-driven and startnet was already seeding them. The hardcoding was all in
startnet itself.
Verified: set on line 13, first use on line 20; parens balance; every goto
resolves; 1005 CRLF lines with no bare LF; the deployed copy contains exactly one
literal address. boot.wim md5 7a9b832b.
a0aceb4680