Ubuntu – Ubuntu 16.04 LTS Shown in Upgrade Manager Now

16.04upgrade

I see the next upgrade available as 16.04 LTS shown in update manager.

But the release date (from wiki) is written as April 2016. And it's not shown in Ubuntu page yet.

Why is it already available to upgrade now? If it's not official, why is it listed as an option in the update manager?

Thanks for any information.

(I'm in the process of upgrading my Ubuntu Gnome 14.04 in my Dell Venue 11 Pro 7140. Everything works, except sound, and modprobing my snd_soc_sst_broadwell fails – whereas in Ubuntu (main) 15.10, it works- , hence wanted to upgrade and came across this issue.)

Best Answer

update-manager -d checks if upgrading to the latest development release is possible. Since 16.04 alpha 1 release is available from January 7, you'll be notified about this.

Read this post to know how to upgrade your system. Your best bet would be to use a 15.10 live USB.

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Ubuntu – No window manager after Ubuntu update (e.g. 13.10 to 14.04)

We had a similar issue and went through removing (renaming) some related files for the user. It was eventually fixed by removing (renaming) compizconfig-1 in the .cache directory for the affected user.

Upgrade – Can’t Upgrade from 15.10 to 16.04

This is more of a redirect, but when I posted my broken package issue on launchpad (similarly trying to upgrade from 15.10 to 16.04), I got excellent support. In my case my issue was that I had used a foreign source (a ppa) to install some more recent graphics packages, specifically libgl1-mesa-dri, libegl1-mesa, and libgbm1. I had to downgrade those packages to the Ubuntu source versions, and then I was able to proceed with the upgrade. So my suggestion for handling broken package issues is to follow the steps in the OP, e.g.

sudo apt-get update --fix-missing
sudo dpkg --configure -a
sudo apt-get install -f

and if that fails, consider whether any ppas might be introducing package versions that would interfere with stock Ubuntu packages. Additionally, if you get extremely frustrated (like I did), get support on Launchpad.

Best Answer

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Ubuntu – No window manager after Ubuntu update (e.g. 13.10 to 14.04)

Upgrade – Can’t Upgrade from 15.10 to 16.04

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