Kubuntu 18.04.2 LTS -> Ubuntu 19.04

[Volker Wysk]

Am Samstag, den 15.06.2019, 00:05 -0400 schrieb Robert Heller:
> At Sat, 15 Jun 2019 02:52:43 +0200 "Ubuntu user technical
> support,  not for general discussions" <ubuntu-users at lists.ubuntu.com
> > wrote:
> 
> > 
> > Am Freitag, den 14.06.2019, 17:09 -0400 schrieb Paul Smith:
> > > On Fri, 2019-06-14 at 22:26 +0200, Volker Wysk wrote:
> > > > This means that I have to migrate from my 18.04.2 LTS system to
> > > > the
> > > > newest Ubuntu version.
> > > > 
> > > > Can this be done with do-release-upgrade or something like
> > > > that? I
> > > > really don't want to set up everything from scratch _again_.
> > > > There's a lot to setup.
> > > 
> > > It is definitely supported to use do-release-upgrade to move
> > > between
> > > non-LTS releases; I do it all the time (I don't use fresh install
> > > modes). However, unfortunately you can't skip non-LTS releases;
> > > that's not supported.  
> > 
> > It's possible to upgrade from one LTS release to the next, skipping
> > the
> > non-LTS releases in between...
> 
> Yes, the *default* behavour of do-release-upgrade when run on a LTS
> release is
> to go to the next LTS release. At least that is what happened when I
> ran it on
> laptops and workstations running 14.04 -- it jumped to 16.04, and
> then when I
> ran it (again) on the 16.04 install, it jumped to 18.04.  I upgraded
> two 
> laptops and three desktop machines from 14.04 to 18.04 that way. (I
> upgraded 
> the diskless workstations using a fresh install of of 18.04 on a
> fresh VM and 
> then just updated things in the DHCP server's dhcpd.conf file.)
> 
> I have no clue what do-release-upgrade does on a non-LTS release.

do-release-upgrade has two modes: LTS mode and normal mode. One of the
two is selected in /etc/update-manager/release-upgrades. In normal
mode, it upgrades to the next release (be it LTS or non-LTS).

> > > So you can't jump straight from 18.04 to 19.04; you have to
> > > go to 18.10 first then from there to 19.04.
> > > 
> > > Also, I don't know enough about Kubuntu to say if you can
> > > upgrade 
> > > from a Kubuntu release to a vanilla Ubuntu release... that's 
> > > something I've never really considered trying.
> > 
> > That's my question...
> > 
> > > It should be _possible_ because all the packages will have
> > > appropriate names... however of course at best you'll have a lot
> > > of
> > > leftover Kubuntu packages lying around on your Ubuntu system.
> > 
> > I don't get this. Are you saying that the Kubuntu package names
> > won't
> > clash with vanilla-Ubuntu package names?
> 
> I would suspect that going from Kubuntu to vanilla-Ubuntu *might* be
> strange, 
> but why would you do that?  But I don't know.

I want to get the newest Gnome. This is in vanilla-Ubuntu, every half-
year.


Bye
Volker