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I'm trying to upgrade from 19.10 to 20.04, following https://wiki.ubuntu.com/FocalFossa/ReleaseNotes. I have run sudo apt-get update and sudo apt-get upgrade, and have set Notify me of a new Ubuntu version: For any new version. However, nothing in the release notes worked.

update-manager -c says everything up to date, but says: Failed to connect to https://changelogs.ubuntu.com/meta-release-development. Check your Internet connection or proxy settings. Same for /usr/lib/ubuntu-release-upgrader/check-new-release-gtk or do-release-upgrade. sudo apt dist-upgrade does nothing. However, when i can curl the url and it loads fine in firefox.

Maybe relevant: I have compiled and installed openssl 1.1.1g by hand. Maybe some difference between openssl 1.1.1c and 1.1.1g is causing this error? I compiled with ./config zlib zlib-dynamic threads enable-buildtest-c++ --release

How would I fix this?

Edit: I have no proxy or internet issue.

mikewhatever
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Rotartsi
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4 Answers4

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If your computer has IPv6, check if your IPv6 connectivity is working.

changelogs.ubuntu.com has an AAAA entry: try pinging changelogs.ubuntu.com

ping6 -c1 changelogs.ubuntu.com

Otherwise verify that with your installation of SSL the connection works:

openssl s_client -CAfile /etc/ssl/certs/ca-certificates.crt -showcerts -connect changelogs.ubuntu.com:443 < /dev/null

The output should start with:

CONNECTED(00000003)
depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3
verify return:1
depth=0 CN = changelogs.ubuntu.com
verify return:1
Jeremy SPIESSER
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it somehow hadn't occurred to me to google the error message ;(

After some googling, I found Failed to connect to https://changelogs.ubuntu.com/meta-release-development. Check your Internet connection or proxy settings.

So, after editing /usr/lib/python3/dist-packages/UpdateManager/Core/MetaRelease.py, it worked.

However, I'm on ubuntu 19.10, and the issue in that question seems to have fixed in ubuntu 18.04.2.

The problem seems to have been something not playing nicely with https. In the question's case something to do with the certs, but in my case i can curl it and openssl s_client has no problem verifying the cert, but then again the update-manager and others might be doing something weird.

Might be the same problem?

Rotartsi
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0

In my case, my name server was changed when I upgraded from Ubuntu 16 to 18

Once it is changed my /etc/resolv.conf file, all was good.

Kevin Bowen
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Sam_Fani
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I had the same issue on a customer's computer with Ubuntu 18.04. After reading this thread and Upgrade 20.04 to 22.04 fails because of HTTPS certificate issue, which is about the same issue, I checked wget's response and there was the same validity error regarding the website's certificate. A dpkg-reconfigure -plow ca-certificates did not fix the problem, although all the necessary certificates had been enabled. I then checked /etc/ca-certificates.conf and discovered that the DST Root CA X3 certficate had been disabled. I then removed the exclamation mark in front of it, re-ran update-ca-certificates, and then everything worked.

Because that file looked so weird and did not match the output of dpkg-reconfigure, I ended up deleting /etc/ca-certificates.conf completely and re-created it by another run of dpkg-reconfigure -plow ca-certificates. Everything was fine after that.

The system was a pre-configured one.

dleidert
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