Are there any builds of Ubuntu (or flavors of) 18.04 for PowerPC Macs?

I have an old PowerMac G4 that I installed Lubuntu 16.04 on a while ago. I've been getting notifications in the terminal that 18.04 is available to upgrade, but the upgrader fails to run, saying that the package ubuntu-minimal is not available. I haven't seen any ISOs for PowerPC available, and ports.ubuntu.com doesn't have any bionic distributions available for architecture powerpc. But while searching I found this link that suggests that there is/was a version of Ubuntu 18.04 for PowerPC. Is this just a pre-generated page, or is there somewhere I can get Ubuntu Bionic for PPC?

Solution 1:

Lubuntu 16.04 LTS is EOL (https://wiki.ubuntu.com/XenialXerus/ReleaseNotes/Lubuntu http://lubuntu.me/xenial-released), as being a flavor it came with only 3 years of support.

All 32-bit ppc support ended in April-2019 (3 years of support only is provided for flavors like MATE & Lubuntu which had PPC support) and Ubuntu 14.04 LTS which also had PPC support with its 5 years of standard support ended at the same time

18.04 is only available for ppc64el or the 64-bit PPC which will not run on powerpc mac boxes.