@dosdude1 Happy to report that upgrading to Developer Beta 9 via MAS was successful and went smooth. Had to of course apply the post install patches again.
@nekton1 Maybe the problem is that you tried to update with the disk inside the Tempo? I did the upgrade with SSD in one of the standard Mac Pro bays.

@nekton1 Maybe the problem is that you tried to update with the disk inside the Tempo? I did the upgrade with SSD in one of the standard Mac Pro bays.
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