Cannot upgrade from 16.04 to 16.10 (No new release found)

Question

Cannot upgrade from 16.04LTS to 16.10.

Updated and dist-upgraded the system and tried running do-release-upgrade -d but it says no release found. Ensured that the prompt=normal in the "/etc/update-manager/release-upgrades" file.

Tried the same using the GUI of update-manager and changed the settings to "Notify for any new version" which is equivalent of prompt = normal and it says Your computer is up to date.

Also, all the necessary repos are present in the sources.lists.

I have recently upgraded a similar computer successfully which was quite straightforward. Cannot understand why this is happening even though the config files are similar and there are no problems in installing/updating using apt-get.

Any help would be greatly appreciated! Thanks :)

I deleted my answer because I saw that you already tried that. I did find one that might help: http://askubuntu.com/a/289076/231142 — Terrance, Dec 09 '16 at 23:17
Open Software updater it will give you option for upgrade to 16.10 — Rahul, Dec 10 '16 at 13:46

Dan Blows · Answer 1 · 2017-10-19T15:16:51.670

7

After changing the setting in /etc/update-manager/releases-upgrades from lts to normal, you need to run sudo apt-get update.

edited Oct 19 '17 at 15:16

answered Dec 20 '16 at 09:42

Dan Blows

171
5

Just for clarification, the sudo apt-get update forces it to check for new releases, then you do sudo do-release-upgrade. – Dan Blows Oct 19 '17 at 15:17

score 0 · Answer 2 · answered Dec 10 '16 at 13:21

0

To upgrade to Ubuntu 16.10 from the current LTS you will need to tell the OS that you want to receive non-LTS updates.:

Open ‘Software & Updates’ using the Unity Dash
Select the ‘Updates‘ tab
Find the section titled ‘Notify me of a new Ubuntu version‘
Change this from ‘For long-term support versions’ to ‘For any new version‘
Click ‘Close’

You’ll instantly be prompted to run a quick update.

answered Dec 10 '16 at 13:21

jet

7,274

Tried, same as putting prompt = normal. No luck ! – Abhijith Nair Dec 10 '16 at 13:43
What sudo apt-get update says – jet Dec 10 '16 at 20:34

score 0 · Answer 3 · edited May 03 '17 at 09:06

I found that my 16.04 box had a broken DNS (I had nothing in /etc/resolv.conf), so "sudo do-release-upgrade" fails with the "no release found" message mentioned above.

Once I fixed DNS, I got:

s1:~$ sudo do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [836 B]
Get:2 Upgrade tool [1,265 kB]
Fetched 1,266 kB in 0s (0 B/s)
authenticate 'xenial.tar.gz' against 'xenial.tar.gz.gpg'
...

So a good test is "sudo apt-get update" to ensure you can actually reach update servers, or a simple "nslookup security.ubuntu.com" to validate DNS is working.

Cannot upgrade from 16.04 to 16.10 (No new release found)

3 Answers3