Just imaged my machine and am ready to try. Can't wait to read it. OK, so reading this page I tried the following: Install Updates. Run Plasma Discover and install all available updates; or in Konsole run Code: sudo apt-get update && sudo apt-get dist-upgrade Upgrade. Ensure that the package ubuntu-release-upgrader-qt is installed. Run in Krunner. Code: pkexec do-release-upgrade -m desktop -f DistUpgradeViewKDE Alternatively if you wish to do the entire upgrade in a terminal, in Konsole do; Code: sudo do-release-upgrade -m desktop Don't know what Krunner is and can't find it, but I put both into Terminal and get this: Code: Checking for a new Ubuntu release There is no development version of an LTS available. To upgrade to the latest non-LTS develoment release set Prompt=normal in /etc/update-manager/release-upgrades. I might just wait until 20.04 is offered on this machine.
@Krusty, As mentioned (1), (2): "From 18.04, upgrades will not be enabled until approximately the date of the 1st 20.04 point release at the end of July." And regarding Krunner: KRunner is the launcher built into the Plasma desktop, and can be launched with Alt-F2 or Alt-SPACE, or even by typing directly in the Plasma desktop.
Ah, OK. Thanks. I wonder will 20.04 be offered like Mint or will I need to run those commands again after end of July?
Probably some days after Kubuntu 20.04.1 is released, at the end of July, the upgrade should be offered through Kubuntu's Discover software center, like the upgrade to Kubuntu Bionic Beaver, two years before.
Do you mean Kubuntu 20.04? I'd say, download and save the Kubuntu 20.04 LTS iso file, burn a bootable DVD (for instance using Kubuntu's K3b), or make a bootable USB flash drive (for instance using Etcher), boot your system with bootable DVD or USB flash drive, and then in the Install process, in Disk Setup, Installation type, choose Manual. Next you can choose which partition to install Kubuntu. You can find that information in the Kubuntu Manual. The manual for 20.04 is not yet available, but I guess the installation is the same as for Kubuntu 18.04 LTS, for which the manual is available on the Kubuntu site, in the Support section.
As always, @Stupendous Man , many thanks. Crisis averted for the time being. 20.04 upgraded nicely over 18.04 the last time I tried so I'll persevere with it. Cheers, Dave