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submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/linuxquestions

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I tried the following

sudo cryptsetup luksChangekey /dev/nvme0n1p3 < new passphrase >

It then asks for the Sudo password, then asks for the old passphrase, but then it prints this error message

Failed to open key file.

what went wrong ?

Edit: turns out using GNOME Disks is way more straightforward.. 😅, thank you all

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[–] [email protected] 2 points 5 months ago (1 children)

Have you tried using GNOME Disk Utility?

[–] [email protected] 1 points 5 months ago (2 children)

I have it installed, but I don't see the option 🤷‍♂️

[–] [email protected] 2 points 5 months ago

Try clicking on the encrypted partition to get the passphrase option.

[–] [email protected] 1 points 5 months ago (1 children)

[–] [email protected] 2 points 5 months ago

OMG, thank youu.. It worked.. 🥳