Turn off Filevault on macOS:
https://kane.mx/posts/2021/turn-off-filevault-on-macosx/
Oct 31, 2021,
Tags: MACOSX, MACOS MONTEREY, FILEVAULT, TIP
I'm trying to upgrade my Macbook Pro to macOS Monterey,
however the installation can not be started due to the disk is encrypted by Filevault ?
I have to turn off Filevault to disable disk encrpytion before installing macOS Monterey.
I found this support article on how turning off Filevault,
but it does not work at all. There is nothing hint or error message after clicking the option Turn off Filevault
.
After researching it for a while, I found this post via CLI command,
$ sudo fdesetup disable
But above command also does not work, it exits with error code -69594 as follow:
$ sudo fdesetup disable
Enter the user name:abael
Enter the password for user 'abael':
FileVault was not disabled (-69594).
I found some articles said that the Filevault only can be disabled by the user whom enables it.
I found below command to show the user whom enabled the Filevault,
it's enabled by an unknown user! I don't have idea how enabling it.
$ sudo fdesetup list -extended
ESCROW UUID TYPE USER
2D3F7CA5-4ED4-4537-8DA2-98B1E3637954 Unknown User
Finally I found below command line to disable Filevault though I don't know which user enabled it.
$ diskutil apfs disableFileVault disk1s1 -user disk
Input the disk password when booting the macOS.
The disabling Filevault will be processed in backgroud, you can retrieve the progress by below command,
$ diskutil apfs list
Happy Monterey!