§2023-07-22

$ sudo apt update && sudo apt -y upgrade
$ sudo nano /etc/update-manager/release-upgrades
Change Prompt=lts to normal

$ sudo do-release-upgrade -c
Checking for a new Ubuntu release
New release '23.04' available.
Run 'do-release-upgrade' to upgrade to it.

$ sudo do-release-upgrade     <-- please run this on terminal, not through `ssh` session
Checking for a new Ubuntu release

= Welcome to Ubuntu 23.04 'Lunar Lobster' =

The Ubuntu team is proud to announce Ubuntu 23.04 'Lunar Lobster'.

To see what's new in this release, visit:
  https://wiki.ubuntu.com/LunarLobster/ReleaseNotes

Ubuntu is a Linux distribution for your desktop or server, with a fast
and easy install, regular releases, a tight selection of excellent
applications installed by default, and almost any other software you
can imagine available through the network.

We hope you enjoy Ubuntu.

== Feedback and Helping ==

If you would like to help shape Ubuntu, take a look at the list of
ways you can participate at

  http://www.ubuntu.com/community/participate/

Your comments, bug reports, patches and suggestions will help ensure
that our next release is the best release of Ubuntu ever.  If you feel
that you have found a bug please read:

  http://help.ubuntu.com/community/ReportingBugs

Then report bugs using apport in Ubuntu.  For example:

  ubuntu-bug linux

will open a bug report in Launchpad regarding the linux package.

If you have a question, or if you think you may have found a bug but
aren't sure, first try asking on the #ubuntu or #ubuntu-bugs IRC
channels on Libera.Chat, on the Ubuntu Users mailing list, or on the
Ubuntu forums:

  http://help.ubuntu.com/community/InternetRelayChat
  http://lists.ubuntu.com/mailman/listinfo/ubuntu-users
  http://www.ubuntuforums.org/


== More Information ==

You can find out more about Ubuntu on our website, IRC channel and wiki.
If you're new to Ubuntu, please visit:

  http://www.ubuntu.com/


To sign up for future Ubuntu announcements, please subscribe to Ubuntu's
very low volume announcement list at:

  http://lists.ubuntu.com/mailman/listinfo/ubuntu-announce


Continue [yN] y   <-- 

..
This session appears to be running under ssh. It is not recommended 
to perform a upgrade over ssh currently because in case of failure it 
is harder to recover. 

If you continue, an additional ssh daemon will be started at port 
'1022'. 
Do you want to continue? 

Continue [yN] n    --> switch to terminal and do `
...
`/etc/update-manager/release-upgrades` keep the one we updated
Prompt=normal
  1. After reboot check
 cat /etc/os-release 
PRETTY_NAME="Ubuntu 23.04"
NAME="Ubuntu"
VERSION_ID="23.04"
VERSION="23.04 (Lunar Lobster)"
VERSION_CODENAME=lunar
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=lunar
LOGO=ubuntu-logo

$ grep lunar  /etc/apt/sources.list
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar main restricted
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar-updates main restricted
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar universe
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar-updates universe
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar multiverse
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar-updates multiverse
deb http://tw.ports.ubuntu.com/ubuntu-ports/ lunar-backports main restricted universe multiverse
deb http://ports.ubuntu.com/ubuntu-ports lunar-security main restricted
deb http://ports.ubuntu.com/ubuntu-ports lunar-security universe
deb http://ports.ubuntu.com/ubuntu-ports lunar-security multiverse



---

&sect;2023-06-14

Ubuntu 23.04, codenamed Lunar Lobster, is the next major update for Ubuntu, and was officially released on April 20, 2023. Unlike Ubuntu 22.04, this is a short-term release that will be supported for nine months until January 2024.

- [How to Upgrade from Ubuntu 22.04 to Ubuntu 23.04](https://jumpcloud.com/blog/how-to-upgrade-ubuntu-22-04-to-ubuntu-23-04)

Step 1: Update the System
```bash
$ sudo apt update && sudo apt -u upgrade

Step 1a: Confirm Upgrade Complete

$ cat /etc/os-release

Step 2: Install and Configure Update Manager

$ sudo apt install update-manager-core -y

Next, access the /etc/update-manager/release-upgrades file.

$ sudo nano /etc/update-manager/release-upgrades

Set the default upgrade policy from Prompt=lts to Prompt=normal as shown.

Step 3: Update Sources.List To Point to Lunar Next, update the sources.list file by replacing every instance of ‘jammy’ with ‘lunar’ using the sed command as shown.

$ sudo sed -i 's/jammy/lunar/g' /etc/apt/sources.list

$ sudo cp -v  /etc/apt/sources.list /etc/apt/sources.list.ori

Step 4: Run Update and Upgrade Commands

$ sudo apt update && sudo apt -y upgrade

Step 5: Initiate Ubuntu 23.04 Upgrade

Finally, perform the upgrade to Ubuntu 23.04 using the following command:

$ sudo apt dist-upgrade -y
[sudo] password for alexlai: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following package was automatically installed and is no longer required:
  libldap-2.5-0
Use 'sudo apt autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Step 6: Confirm Update Is Successful Upon rebooting, be sure to confirm that you have upgraded to Ubuntu 23.04 as shown.

$ cat /etc/os-release 
PRETTY_NAME="Ubuntu 23.04"
NAME="Ubuntu"
VERSION_ID="23.04"
VERSION="23.04 (Lunar Lobster)"
VERSION_CODENAME=lunar
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=lunar
LOGO=ubuntu-logo

Reboot, problems


--- 

can not install budgie-desktop, or any other desktop at present time.

```bash
$ sudo apt install ubuntu-budgie-desktop