MacOS 15.0 Beta broke users - attempting to re-install

[poetinger]

Error

Error: 
   0: Install failure
   1: Error executing action
   2: Action `create_users_and_group` errored
   3: Action `create_user` errored
   4: Failed to execute command with status 55 `"/usr/bin/dscl" "." "-create" "/Users/_nixbld1" "UniqueID" "301"`, stdout: 
      stderr: <main> attribute status: eDSRecordAlreadyExists
      <dscl_cmd> DS Error: -14135 (eDSRecordAlreadyExists)

Metadata

key	value
version	0.19.0
os	macos
arch	aarch64

Description

After OS update, I had many issues trying to get the _nixbld1 user (really any build user) to work. So I uninstalled nix-darwin using the uninstaller already in the Nix Store, as I could not build the uninstaller anymore (following Darwin instructions). This worked. I then uninstalled nix through the determinate uninstaller. This also worked.

The issue begins with the installation. First the nix volume was never actually deleted by the uninstaller (manual command worked).

Now I cannot progress past the user/group step due to these users and groups "existing" yet not being listed when I run the commands manually. Attempting to remove them from via the nix uninstall step:

sudo dscl . -delete /Groups/nixbld
for u in $(sudo dscl . -list /Users | grep _nixbld); do sudo dscl . -delete /Users/$u; done

outputs nothing, and listing both shows nothing on the device. I've tried a couple "solutions" from previous discussions related to _nixbldN and the group, but no luck.

[poetinger]

Related to #1001 most likely.

[poetinger]

I'll let the other issue track this issue, as it has the (hopefully temporary) solution.