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generalize: lay the data disk out in Audit Mode, not only in specialize

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Formatting it from a specialize RunSynchronousCommand is not enough on its
own. FolderLocations is applied by Shell-Setup while the disk is prepared by
Deployment, and component order within a pass is not guaranteed -- so the
relocation can be evaluated before the volume it names exists, which fails
silently and leaves profiles on C:. That is what a correctly formatted data
disk carrying nothing but NTFS metadata was telling us.

Audit Mode is a fully booted OS with the disk already attached, so doing it
before sysprep makes the volume unconditionally present by the time any pass
looks for it. The specialize copy stays, now purely to re-assert the drive
letter after generalize clears MountedDevices.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0117qMyjpuXsjpVAcpJbFD8g
This commit is contained in:
Git Sagar 2026-09-10 05:11:40 -03:00
parent 0e4619eb39
commit 23c539dbe2
1 changed files with 11 additions and 0 deletions
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11
lib/images/windows/templates/generalize.nix
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@ -336,6 +336,17 @@ in {
del /q C:\Windows\Panther\unattend.xml 2>nul
del /q C:\Windows\Panther\Unattend\unattend.xml 2>nul
del /q C:\Windows\System32\Sysprep\Panther\unattend.xml 2>nul
${lib.optionalString (dataDisk != null) ''
:: Lay the data disk out here, in Audit Mode, rather than leaving it to the
:: specialize pass alone. Component order within a pass is not guaranteed,
:: and FolderLocations is applied by Shell-Setup while the disk is prepared
:: by Deployment -- so relocation can be evaluated before the volume it
:: names exists, which silently leaves profiles on C:. Audit Mode is a
:: fully booted OS with the disk already attached, so this always works.
:: The specialize copy stays as a letter re-assertion after generalize
:: clears MountedDevices.
call C:\vmix-init-data-disk.cmd
''}
C:\Windows\System32\Sysprep\sysprep.exe /generalize /oobe ${if delayOobeRun then "/shutdown" else "/reboot"} /quiet /unattend:C:\oobe-unattend.xml
'';
}