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Willing to upgrade my Deepin Desktop Environment (DDE) based on Ubuntu 18.04 I was confronted with the lack of explanation on how to do so reliably to 20.04 DDE.

Any enlightened, safe method on how to do so?

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    Please refer askubuntu.com/help/on-topic, Ubuntu and official flavors of Ubuntu (ubuntu.com/download/flavours) are on-topic on this site. The on-topic link provides alternate SE sites for non-Ubuntu OSes. Ubuntu DDE is a re-spin and not a flavor of Ubuntu.
    – guiverc
    Aug 28, 2020 at 1:55
  • I was not aware, I will keep this in mind. Is there a place to post for re-spins? Very few support sources exist at the moment about this DDE re-spin on Ubuntu.
    – Lurch
    Aug 28, 2020 at 11:07
  • Refer to the on-topic link I provided, it'll suggest SE's Unix & Linux ps: For Ubuntu and flavors of Ubuntu, I'd always go to the release notes for the release you want to upgrade to, it always has a Upgrading from section telling you how to upgrade from prior supported upgrade paths, I assume Ubuntu DDE has the same, or it's on their web site.
    – guiverc
    Aug 28, 2020 at 11:08
  • Done! unix.stackexchange.com/questions/606798/…
    – Lurch
    Aug 29, 2020 at 4:35

1 Answer 1

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First, start doing the upgrade (it's ok to do it from DDE terminal) from Ubuntu 18.04 to 20.04 as described here:

First, make sure that your system is already up-to-date. Run a full Ubuntu update and upgrade with Apt.

$ sudo apt update 
$ sudo apt upgrade
$ sudo apt dist-upgrade

Then, before you begin to upgrade Ubuntu to 20.04 LTS Focal Fossa you may also want to remove all no longer required packages using:

$ sudo apt autoremove

If you know what you're doing (if not, refer to the linked post), issue the following to start the update process from 18.04 to 20.04:

$ sudo do-release-upgrade -d

Ubuntu will ask you a couple of questions about how you want to handle the upgrade, and it'll start off upgrading your system.

You may be asked a few questions during the update process, review them carefully. In my case I only had to answer (Y) each time.

At the end of the upgrade process, tyou will receive a prompt to restart the system. Answer No or (N).

Secondly, follow the install procedure to install DDE on 20.04 as issued here:

Step 1: Add UbuntuDDE Stable PPA repository

If you had tried other PPA repositories such as leaeasy without any success I recommend you clean them out.

sudo apt update
sudo apt install ppa-purge
sudo ppa-purge ppa:leaeasy/dde

Add Stable PPA repository for DDE:

sudo add-apt-repository ppa:ubuntudde-dev/stable

Hit the Enter key in your keyboard to add the repository.

Step 2: Install Deepin Desktop Environment (DDE) on Ubuntu 20.04

After adding the repository successfully the next step will be to install Deepin Desktop Environment (DDE) on Ubuntu 20.04.

sudo apt update
sudo apt install ubuntudde-dde

Step 3: Using Deepin Desktop Environment (DDE) on Ubuntu 20.04

Be careful: don't restart your machine yet. Instead, issue the following

sudo apt update
sudo apt full-upgrade

In order to be sure all the components of DDE are updated successfully.

Reboot and repeat that last step, by any chance.

This is done because there are relatively few articles on how to debug DDE on Ubuntu so better proceed carefully to avoid them. This walkthrough should avoid most of the caveats you could meet in the process.

Enjoy

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  • Thanks for posting a detailed and informative answer. I posted my experiences in upgrading from 18.04 to 20.04 in this answer. Users who experience any other problems when upgrading from 18.04 to 20.04 may find additional useful information there. In addition to what I posted there I will add the ancient advice that errors that occur when trying to upgrade will be recorded in the log files.
    – karel
    Aug 28, 2020 at 6:58
  • Thank you for posting. Too bad this is off-topic, I found it is not easy to find support for DDE environments. Based on Ubuntu, I supposed it would be fine to post it here.
    – Lurch
    Aug 28, 2020 at 11:04
  • DDE is on topic at Unix & Linux Q&A
    – karel
    Aug 28, 2020 at 11:13
  • Posted! Thank you!
    – Lurch
    Aug 28, 2020 at 11:17

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