Re: Remove disk encryption in Maintenance Mode

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On Tue, 2024-11-05 at 18:25 -0800, richard emberson wrote:
> Early in Maintenance Mode I tested the keyboard and typed in the passphrase,
> twice, and it appeared on the screen correctly.

Just to be thorough...  On the graphical login screen see if there's an
icon for choosing keyboard layout/language.  It is possible for the
command line (purely textual interface) to be different from the
graphical interface.

You can't remove disc encryption without re-writing every bit of data
stored on the disc.  When using an encrypted disc the system is
decrypting the data on the fly, it's always encrypted on the disc.

Are you sure you want to do that, or simply access the encrypted data?

Of course, when it comes to updating an old installation of something
with a new version of something else, there is every chance that the
old encryption scheme isn't supported any more, so you would have to
re-encrypt the drive (or just decrypt it, if you don't want encrypted
contents any more).

You should probably be booting from something else, and something
that's compatible with the original encryption scheme, to do this.  I
wouldn't risk trying anything that was going to decrypt in-place when
its running from itself, well not if the OS is encrypted.  I'd be more
confident about doing that if it's simply user data space that was
encrypted.

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