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How do I downgrade or remove the 16.04.1 point release to 16.04?

edwinksl
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Alex
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1 Answers1

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The only practical way to downgrade that I'm aware of is to reinstall, clean, from a pre-point release ISO image. Obviously, you'll need to make appropriate backups before you proceed. This will certainly be the quickest way, assuming (per comments) that it's a non-production system (i.e. one with little or no user data present, installed just for testing, learning, or certification).

You'll also need to unselect the option to load updates during installation, and turn off automatic updating on the new installation, otherwise the new install with promptly update itself to 16.04.1 again.

Zeiss Ikon
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    That's not a downgrade, of course. –  Oct 13 '16 at 13:53
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    It does satisfy the "or remove" part though ;) – Rinzwind Oct 13 '16 at 14:23
  • Indeed it does. –  Oct 13 '16 at 14:29
  • So there is no way by removing the kernels for the point release 16.04.1 to get back to 16.04? – Alex Oct 13 '16 at 15:34
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    What is your problem exactly? I have a feeling you fell into the X-Y trap: http://xyproblem.info/ –  Oct 13 '16 at 15:39
  • The point release involves far more than just a kernel upgrade. I'm here to tell you that, at least on my hardware, 16.04 just barely worked (when first installed, the GUI for Kubuntu didn't work at all on my GTx-750 until I changed the video driver from the command line). Now, it works pretty reliably, though there's a lot of eye candy missing from KDE Plasma that I was used to in 14.04.5. – Zeiss Ikon Oct 13 '16 at 15:40
  • I have to certify with Ubuntu 16.04 which I had originally and it got updated somehow to 16.04.1. If I have to just blow away my machine and start from scratch I can do that, but I just want to find out if there is another alternative to remove the point release ".1" from 16.04. – Alex Oct 13 '16 at 18:01
  • I'm new to Ubuntu so any expert advise will be helpful. – Alex Oct 13 '16 at 18:02
  • I'm pretty confident that the least time consuming method will be to start fresh, assuming this is a machine installed to learn on or test/certify with rather than a "production" system. – Zeiss Ikon Oct 13 '16 at 18:17
  • Thank you Zeiss. Do you point me to documentation on how I can turn off automatic updating on the new installation? – Alex Oct 13 '16 at 18:41
  • Not at the moment; I'm at work, and my Kubuntu systems are at home. As I recall, it's a setting in the updater (I also don't use the stock updater, because I was already used to Synaptic when I came to Kubuntu). – Zeiss Ikon Oct 13 '16 at 19:23