Originally Posted By: joemikeb
🤞

(Dunno why your 250% tags don't work in "Quote" format.)

OK... No luck! frown

Here's a step by step of what I did...
  1. I first tried a clean install.
  2. Cloned boot volume to external. (Both drives are SSDs.)
  3. Erased boot volume.
  4. D/l'ed High Sierra to empty partition on external...HFS+ as expected.
  5. Shut down after Installer had launched but before going any further.
  6. Restarted in boot volume clone.
  7. Cloned product of steps 4 & 5 to previously erased boot volume...HFS+ as expected.
  8. Completed installation.
  9. Aaargh!!!
  10. Erased HS installation.
  11. Cloned step 1 clone back to its original home.
  12. Upgraded with HS installer...APFS as expected.
  13. Aaargh!!!
  14. Re-d/l'ed HS from App Store.
  15. Clean install.
  16. Aaargh!!!
(I was flustered, and I trashed my notes along with High Sierra; I hope I'm not omitting anything important.)

My MAJOR problem with HS was with Keychain Access...
  • My "Changed" login password wasn't perpetuated.
  • I reinstated it, and it worked, but it didn't survive either shut down or simple restart.
  • My "Local Items" weren't perpetuated.
  • Re-added "Local Items" sometimes survived shut down or simple restart...sometimes didn't.
  • Aaargh!!!
  • Filed bug report with Apple.
As you might expect, I'm back in Sierra.

Aftermath: After I erased the step 12 HS installation I wanted to reformat the volume as HFS+ but couldn't do so from a local volume, so I booted into Recovery Drive but got an endless SBOD when I tried to get to Disk Utility, and I wound up erasing and reinstalling my entire internal drive. mad

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire