Golden Gate Does Not Actually Support CoreStorage

macOS 15 Sequoia had a hard time with CoreStorage and HFS+ volumes, since it deprecated both technologies and callously crippled some important tools for working with them, but nonetheless it mostly still worked. Not only does Golden Gate just not support CoreStorage or HFS+ volumes, out of the box you can’t do anything with them – can’t mount them, can’t convert them to APFS, can’t even erase them. It renders your expensive storage hardware completely useless. Worse, macOS 27 puts up a misleading dialog, upon boot, saying that macOS 28 (the next version) won’t support these volumes. I have no idea what Apple’s doing or thinking. Maybe it’s all just an embarrassing misunderstanding – the file system team told the notifications team that CoreStorage & HFS support is gone, and typoed the version number as 28 rather than 27?

Apple also wrote an article this summer saying that CoreStorage volumes would be supported in macOS 27 and that unencrypted HFS+ would be supported in macOS 28.

Tregaskis says that macOS 28 does not support “CoreStorage or HFS+,” but in my testing plain HFS+ volumes do work.

Previously:

Sunsetting CoreStorage

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