Unsupported repository when upgrading to LinuxMint 21

Hi all. I recently attempted to upgrade my Plex server OS to LinuxMint 21. The pre-checks state that the plex repo “does not explicitly support my version of Linux Mint”.
Has anybody else had this issue? Is it simply a matter of waiting for the repo to be updated for support?
Thanks
Paul

@pswindells8

If Mint is looking for a “Mint” branded repo, that won’t happen.

The repos are for DEB or RPM package managers (generic).

If your system is specifically complaining because of the repo definition and GPG key requirement — That fix is coming right now in PMS 1.28.1 and 1.28.2

(there was a bug in the packaging which engineering is “hotfixing” for me right now)

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Still no change. This is the exact message when I run the “mintupgrade” tool. It performs a number of checks. The fix it offers removes the repo then also the subsequent redundant package(s). I realise that this is most likelt a linuxmint issue but just wondering if anybody else has come across this problem. Thanks.
plex_repo

Could this be related to the depreciation of apt-key in the latest version of LinuxMint?

Decided to take the plunge. I renamed the plex repo files in /etc/apt/sources.d and set the plexmediaserver to KEEP in the orphaned apps list (mintupgrade tool). Upgrade completed successfully. I have re-instated the repo files. Updated apps and the repo is checked as expected. All good.

@pswindells8

Sorry for having been busy with the :fire: around here.

You’re confirming the new repo signing is working correctly for you?

Good so far. No errors with apt-get update. I should have waited to install the recent plex server update after upgrading Mint. Didn’t think. Assuming the next upgrade plex is identified and installs from the repo, I think all should be good. If not I will remove the repo and re-add the keys.

Recently updated Plex via standard repo. All is working as expected.

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