APFS FileVault problem in beta 8?

[eyvind]

I just updated my test Mac to beta 8, and now it refuses to accept my password to unlock the drive after rebooting.

I've seen reports of similar problems in earlier betas, but in those cases people were getting generic "enter drive password" prompts. I can select my normal user, it just doesn't recognise my password.

I've tried using recovery boot and the drive decrypts just fine with my password there. I even tried reinstalling High Sierra from recovery, but it still can't unlock my drive on boot.

I'll be reporting the problem to Apple, but has anybody else seen anything like this?

 

[GrantGochnauer]

I did but happened to change my password on b8 when using a domain controller. So what happened was that I changed my pw and the filevault password was one of the passwords while the domain password was another and now I have to "login" twice.

 

[eyvind]

Thanks for the response The only other password I've used on that machine under 10.13 is my iCloud password, but that also failed when I tried it.

It seems like the magic that allows macOS installers to bypass the FileVault password on reboot failed, and instead prevented the preboot environment from unlocking the drive at all.

In the end I just erased the drive and did a clean install. Fortunately it's just a test machine.