With the help of Time Machine backups, local snapshots, and being a bit more careful when "upgrading" I kind of got back to some state that is working. I hope. Some notes, true or not, but wha...
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With the help of Time Machine backups, local snapshots, and being a bit more careful when "upgrading" I kind of got back to some state that is working. I hope. Some notes, true or not, but what I think I need to remember next time I do an upgrade. Running "macOS on macOS" using VMware Fusion is a bit "sensitive" so extra steps is a good thing Make sure you have Time Machine backups. Make sure you have disk space for multiple local snapshots (I think it silently deletes old ones to make room for new ones). For each upgrade of VMware Fusion and/or the guest OS run "tmutil snapshot" in Terminal to get restore points. You could make a note about what time stamp corresponds to what change. Or make complete Time Machine backups on external media but takes more time. If you need to restore, reboot the host OS with command-r keys down to get into recovery mode, select Time Machine Backup and a local snapshot before your change that broke things. When taking snapshots, taking back a virtual disk from backup, or upgrading VMware Fusion, or upgrading the guest OS, always shut down the guest OS and terminate VMware Fusion. I.e. don't let any state be saved in memory or outside the virtual disk. I corrupted the guest OS multiple times when being too hasty and was too optimistic doing changes. Also if upgrading VMware Tools do the steps, terminate guest OS, exit VMware Fusion, take a snapshot, start VMware Fusion, start the guest OS, do the upgrade. And try it out.