3 ms·

This certainly was not my experience. For additional context, APFS is only supported on SSDs. My iMac didn't have an SSD, but it did have an upgraded HDD that

by cglong 2y ago

This certainly was not my experience. For additional context, APFS is only supported on SSDs. My iMac didn't have an SSD, but it did have an upgraded HDD that I chose while buying the machine from Apple. While performing the OS upgrade that was supposed to determine APFS wasn't applicable, it thrashed the bootloader and wouldn't proceed (something about not finding the unmounted partition? IDK it was several years ago). I hadn't been keeping proper backups either, but was able to manually backup the most important stuff using Target Disk Mode. Then, to Apple's credit, I eventually did a full reinstallation of the broken macOS, which amazingly kept my files intact. EDIT: I originally said the migration "bricked my computer", but greedo is correct that it wasn't permanent damage.

greedo 2y ago
So your computer eventually was usable? That's not what "bricked" means?
- cglong 2y ago
  I guess not, but it did render it inoperable for several months. Someone less technical wouldn't have been able to recover it at all (nor could the Apple Geniuses over my 2-3 visits there).