Change opensuse encryption passwd?

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#1

Hey,
How do I change my opensuse leap 42.1 KDE encryption password?
And how do I change my root password?

#2

What encryption password is that? Is this for disk encryption, or something else? What command asks for that password:

And how do I change my root password?

Become a root user, either with “su” or a root login at a virtual terminal, or by using “sudo”:

# passwd

This should prompt for the old password, then prompt (twice) for the new password.

#3

As this is a request for help (and above it says several times: This forums is NOT for asking questions), this will be moved to the help forums. To Applications to be precise.

It is CLOSED for the moment.

#4

Move from Unreviewed Howo and Faq and open again.

#5

Yes It’s for the disk encryption that comes with Opensuse Leap 42.1.
Btw I forgot my root passwd what can I do to retrieve it?
What I wanted to change was my user passwd.

#6

So it is for LUKS encryption.

Use:

# cryptsetup luksAddKey "device special file"

to add a new encryption key. Then, when you have tested that, you can use:

# cryptsetup luksRemoveKey "device special file"

In the above, “device special file” will be something like “/dev/sda5” or “/dev/disk/by-id/some-long-string”. Check “/etc/crypttab” if you are not sure of the device. And use

man cryptsetup

for more details.

Btw I forgot my root passwd what can I do to retrieve it?

You cannot retrieve it. But you can reset it. You will probably have to boot from live media to do that. There are countless posts here and on the internet with details. I’m sure you can find one with a web search.

What I wanted to change was my user passwd.

I normally do that with the “passwd” command from a terminal. But you can probably also do that in Plasma 5 with the User Manager (I have not tried this).