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I want to run an old version of MythTV written for Ubuntu 12.04, on my Ubuntu 20.04 desktop. I don't want to run the latest MythTV, I want my MTV! Obviously I can (and am currently) run it in a virtual environment running Ubuntu 12.04, but this is not a satisfying solution.

Is there a Wine-equivalent for older linux kernel? Or is this a job for docker/flatpak? Assuming I could package it, would a flatpak/docker of a program built with linux 3.xx run on a linux 5.xx platform?

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  • I doubt it, Ubuntu has gone though a lot of changes underneath the hood since 12.04, and seems to be limited need to have old programs work on newer kernels. It is a shame when new improved programs suck. Hopefully the people on here who know what they are talking about can help. Commented Jan 14, 2021 at 20:45
  • Snaps too are an answer; you can build on one system (where it works well), but the snap once built will run on any other system/release that has snaps enabled for execution. Building snaps on systems older than 16.04 has been done, but as the tools didn't reach maturity till ~16.04 more work/skill is required (at least that's my understanding from blogs). Commented Jan 14, 2021 at 23:50
  • @guiverc He wants to build old program on newer Ubuntu, can that be done? Like running a XP era program on Win 10. Commented Jan 15, 2021 at 0:53
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    @crip659 I would do it by starting a VM (lxc maybe; as precise [12.04] templates exist) and building the snap there, thus the host release doesn't matter (I can use my hirsute system, the OP their focal). I've not done it though; it's what I'd likely do if I was trying to achieve what the OP wants. The VM being used only the create the snap; the packaged snap is then run in the focal system directly (or any other release in the future). Commented Jan 15, 2021 at 1:24

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