Disco as next 19.04 release

[harry332]

I always do the upgrade by manually changing the distro name in the file /etc/apt/sources.list and then by running the Synaptic Packaga Manager.
You just need to know the new distro name. For example Cosmic Cuttlefish is named "cosmic" and Disco Dingo is named "disco".

[zika]

Or, simply put, use „devel“ and let the rolling distribution start. It works, also, with all the files for other ppa's in subfolder, at least it did for me for several releases for several years now...

[actionmystique]

Or, simply put, use „devel“ and let the rolling distribution start. It works, also, with all the files for other ppa's in subfolder, at least it did for me for several releases for several years now...

Interesting trick which looks like testing for Debian instead of buster.
However, using it triggers a warning which may or may not raise issues: "Conflicting distribution"

# cat /etc/apt/sources.list
deb http://archive.ubuntu.com/ubuntu devel main restricted multiverse universe
deb-src http://archive.ubuntu.com/ubuntu devel main restricted multiverse universe
# apt update
Get:1 http://archive.ubuntu.com/ubuntu devel InRelease [243 kB]
Get:2 http://archive.ubuntu.com/ubuntu devel/main Sources [826 kB]
Get:3 http://archive.ubuntu.com/ubuntu devel/restricted Sources [5,904 B]
Get:4 http://archive.ubuntu.com/ubuntu devel/multiverse Sources [189 kB]
Get:5 http://archive.ubuntu.com/ubuntu devel/universe Sources [9,337 kB]
Get:6 http://archive.ubuntu.com/ubuntu devel/main i386 Packages [1,007 kB]
Get:7 http://archive.ubuntu.com/ubuntu devel/main amd64 Packages [1,019 kB]
Get:8 http://archive.ubuntu.com/ubuntu devel/main Translation-en [513 kB]
Get:9 http://archive.ubuntu.com/ubuntu devel/main amd64 DEP-11 Metadata [475 kB]
Get:10 http://archive.ubuntu.com/ubuntu devel/main DEP-11 48x48 Icons [123 kB]
Get:11 http://archive.ubuntu.com/ubuntu devel/main DEP-11 64x64 Icons [237 kB]
Get:12 http://archive.ubuntu.com/ubuntu devel amd64 Contents (deb) [40.8 MB]
Get:13 http://archive.ubuntu.com/ubuntu devel i386 Contents (deb) [40.1 MB]
Get:14 http://archive.ubuntu.com/ubuntu devel/restricted amd64 Packages [9,304 B]
Get:15 http://archive.ubuntu.com/ubuntu devel/restricted i386 Packages [9,564 B]
Get:16 http://archive.ubuntu.com/ubuntu devel/restricted Translation-en [3,888 B]
Get:17 http://archive.ubuntu.com/ubuntu devel/multiverse amd64 Packages [158 kB]
Get:18 http://archive.ubuntu.com/ubuntu devel/multiverse i386 Packages [147 kB]
Get:19 http://archive.ubuntu.com/ubuntu devel/multiverse Translation-en [113 kB]
Get:20 http://archive.ubuntu.com/ubuntu devel/multiverse amd64 DEP-11 Metadata [48.5 kB]
Get:21 http://archive.ubuntu.com/ubuntu devel/multiverse DEP-11 48x48 Icons [8,931 B]
Get:22 http://archive.ubuntu.com/ubuntu devel/multiverse DEP-11 64x64 Icons [221 kB]
Get:23 http://archive.ubuntu.com/ubuntu devel/universe i386 Packages [8,735 kB]
Get:24 http://archive.ubuntu.com/ubuntu devel/universe amd64 Packages [8,792 kB]
Get:25 http://archive.ubuntu.com/ubuntu devel/universe Translation-en [5,058 kB]
Get:26 http://archive.ubuntu.com/ubuntu devel/universe amd64 DEP-11 Metadata [3,378 kB]
Get:27 http://archive.ubuntu.com/ubuntu devel/universe DEP-11 48x48 Icons [2,546 kB]
Get:28 http://archive.ubuntu.com/ubuntu devel/universe DEP-11 64x64 Icons [8,424 kB]
Fetched 133 MB in 21s (6,311 kB/s)                                                                                                                           
Error: Timeout was reached
Reading package lists... Done
Building dependency tree       
Reading state information... Done
111 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Conflicting distribution: http://archive.ubuntu.com/ubuntu devel InRelease (expected devel but got disco)

So I reverted back to disco.

[mrfelker]

Did you try sudo update-manager -d.? I had no problems doing the upgrade this way. Also you can now download an iso from the ubuntu daily servers if you want a clean/VM install.

[jbicha]

Also you can now download an iso from the ubuntu daily servers if you want a clean/VM install.

The installer isn't working yet. See the other thread.

[VMC]

Lubuntu 19.04 Disco ISO, on the other hand installs. It uses Calamares installer instead of Ubiquity.

[zika]

Interesting trick which looks like testing for Debian instead of buster.
However, using it triggers a warning which may or may not raise issues: "Conflicting distribution"
So I reverted back to disco.

Those warnings are OK. Just informing You that there is a reroute to latest distro... No harm, just warning.

[cariboo]

I just upgraded to Disco using:

sudo sed -i 's/cosmic/disco/g' /etc/apt/sources.list

and

sudo apt update && sudo apt dist-upgrade

and so it begins.

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=19.04
DISTRIB_CODENAME=disco
DISTRIB_DESCRIPTION="Ubuntu Disco Dingo (development branch)