macOS 15 Sequoia had a hard time with CoreStorage – and thus encrypted HFS+ volumes – since it deprecated both technologies and callously crippled some important tools for working with them, but nonetheless it mostly still worked. While I’d often – but not always – have to manually unlock one of my HFS+ volumes – but not the others – at boot, and it also refused to convert some – but not all – volumes from HFS+ to APFS1, keeping me trapped in the situation – it ultimately still worked. I could get at my data and use the volumes more or less normally.
Unfortunately, in macOS 27 that’s no longer the case. Not only does Golden Gate just not support CoreStorage / encrypted 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.
