GPG Error while trying to upgrade Zorin OS 17 PRO to 18

Installing Zorin OS
1

Hi there,

I upgraded my Zorin OS Core 17 to the latest version and then to the 17 PRO with the code I bought for Zorin 18 Pro.
Now running 17.3 Pro without any problem EXCEPT
I would like to upgrade my current version to the latest 18 PRO
I changed in the update list the name "jammy" by "noble" ; asked to actualise packages and got an error while updating the "noble premium InRelease" package.
the error is a GPG one with a NO_PUBKEY 55E9312A15BE5896
"the deposit packages.zorinoscom/premium noble InRelease is not signed"

I tried the command to get the key from the keyserver using
"gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv 55E9312A15BE5896"
but the key doesn't exist.

my running OS version Zorin OS 17.3 Pro
I bought the Zorin OS 18 Pro

What can I do to upgrade my version without reinstalling from a fresh install (I have already installed apps and would like to spare the time to reinstall them all and reconfig them).
Thanks in advance

Alain

2

Wait a few weeks, then you can upgrade with the upgrader tool. At the moment you can only make a fresh install of Zorin 18 pro.

1 Like
3

OK, thanks for the answer and details.
I will wait...
regards

1 Like
4

I would recommend to change the Update Sources back to the default Jammy Repos.

3 Likes
5

Changing the sources from Jammy to Noble will not create a Direct Upgrade path:

1 Like