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So I just fresh installed 18.04.1 server from this ISO: ubuntu-18.04.1-live-server-amd64.iso

This is how my /etc/apt/sources.list looks:

svy@emerg-reg-srv:~$ cat /etc/apt/sources.list
deb http://archive.ubuntu.com/ubuntu bionic main
deb http://archive.ubuntu.com/ubuntu bionic-security main
deb http://archive.ubuntu.com/ubuntu bionic-updates main

It's missing universe and multiverse, all src ones. I can't even install mc. So what's going on here? Did something break during installation?

marked as duplicate by dobey, Thomas, wjandrea, Charles Green, Jeremy Bicha Sep 9 '18 at 19:01

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • 3
    You must sudo add-apt-repository {universe,restricted,multiverse} if you want them. – AlexP Aug 6 '18 at 20:04
  • 1
    With Server edition in 18.04, universe/multiverse/backports are not enabled by default. – dobey Sep 7 '18 at 14:51

I installed 18.04.1 server a few times and saw the same result. No, it doesn't look like something went wrong with your install, but that someone upstream made the change.

There are also changes with default group membership. lpadmin was missing.

These are changes between 18.04 and 18.04.1


You can enable the multiverse repo by running:

sudo apt-add-repository multiverse && sudo apt-get update


There is no way to know what happened but here is what the file looks like from a vanilla desktop install. I removed the comments.

You can remove the "us." if you don't want to use the US server.

deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
deb http://us.archive.ubuntu.com/ubuntu/ bionic universe
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe
deb http://us.archive.ubuntu.com/ubuntu/ bionic multiverse
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
deb http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu bionic-security main restricted
deb http://security.ubuntu.com/ubuntu bionic-security universe
deb http://security.ubuntu.com/ubuntu bionic-security multiverse
  • You can condense all that into four lines pastebin.com/5agGcMkb or eight if you're including source. – hiigaran Aug 6 '18 at 22:47
  • @hiigaran Yes, mine is three lines long because I don't use backports. But the point of my answer was to show what the stock version is. – Organic Marble Sep 8 '18 at 13:18

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