Why does do-release-upgrade try to upgrade my system to 15.10, and how to I make it upgrade to 16.04?

Question

I'm currently using Ubuntu 14.04 LTS, and I decided it was a good time to update to the latest version. However, if I run

sudo do-release-upgrade

The program starts downloading Wily Werewolf (15.10) packages. How can I force Ubuntu to download Xenial Xerus?

Possible duplicate of Why is "No new release found" when upgrading from a LTS to the next? — TheWanderer, May 09 '16 at 14:28
`~ $ sudo do-release-upgrade -d
Checking for a new Ubuntu release

Err Upgrade tool signature 404 Not Found [IP: 91.189.88.152 80] Err Upgrade tool 404 Not Found [IP: 91.189.88.152 80] Fetched 0 B in 0s (0 B/s) WARNING:root:file 'utopic.tar.gz.gpg' missing Failed to fetch Fetching the upgrade failed. There may be a network problem.` — Martín Fixman, May 09 '16 at 14:42
For the record, I am able to apt-get update, apt-get upgrade correctly, and do-release-upgrade without the -d correctly. — Martín Fixman, May 09 '16 at 14:56
Does your /etc/update-manager/release-upgrades file end in Prompt=lts? If not, change it and try again. I just did this successfully in a VM. — Organic Marble, May 09 '16 at 16:39
@MartínFixman Great! How about I post it as an answer then? — Organic Marble, May 09 '16 at 17:57

score 3 · Accepted Answer · answered May 09 '16 at 18:00

3

Before doing the sudo do-release-upgrade -d, make sure that your /etc/update-manager/release-upgrades file ends in Prompt=lts. This will enable the upgrade tool to fetch the next LTS release (16.04) instead of just the next release (15.10).

answered May 09 '16 at 18:00

Organic Marble

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Should he backup his data ? – userDepth May 10 '16 at 15:16
1

He should also wear a seatbelt in a motor vehicle. But these are not things he asked about. – Organic Marble May 10 '16 at 17:29
Yeah I maybe he has nine lives and should pay for reincarnation services ... Where's be nice now?, when you gotta think. – userDepth May 10 '16 at 17:35
Seriously, if you look at the comments on the original question, he already tried it and it worked for him. – Organic Marble May 10 '16 at 17:36
Ok I'll delete my answer then. – userDepth May 10 '16 at 19:05
I'll just leave this here - http://ubuntuforums.org/showthread.php?t=2324051&p=13486842#post13486842 – userDepth May 10 '16 at 19:09

score -1 · Answer 2 · answered May 09 '16 at 15:11

-1

You will be able to have your 14.04 LTS version identified ad upgradable to the 16.04 LTS version when the first 'Point Release' for 16.04.1 is available - currently scheduled for July 21, 2016. Announced release schedule

If your desire is to test your current hardware and software compatibility with Xenial you can make a live session of Xenial for testing. Make a persistent USB instance.

answered May 09 '16 at 15:11

pfeiffep

748

So concise, pertinent, correct information is downgraded! – pfeiffep May 09 '16 at 15:55

Why does do-release-upgrade try to upgrade my system to 15.10, and how to I make it upgrade to 16.04?

2 Answers2