## TOPIC: Upgrade Debian 10 to 12

#### Presenter: Lee Lammert and Volunteers

Upgrading from Debian 10 ( Buster )to Debian 11 ( Bullseye )...or 12!

We will be doing a walkthru of a live upgrade of Debian 10->12 showing how we planned it. We'd like to get to release 12 (the latest) but "do we need to stop at 11 for intermediate things"?

We have mailman e-mail listserve and a webserver and various other sftwr. Do these sftwr pkges have DEPENDENCIES on which release of the OS? How can we tell? In what order do we proceed?

It is a "multi-user system" with expectations that it is to be "up and available" 7X24, so, we have to treat this more like a "business machine" rather than a "home-user/hobbie-ist". So, this will be a good chance to see how to PLAN such an upgrade rather than just "brute force it"

==== References ====
Debian 10 Buster End-Of-Life is 2024-06-30, with no more updates or security patches.

Debian end of life dates available at [https://endoflife.date/debian/](https://www.google.com/url?q=https://endoflife.date/debian/&sa=D&source=calendar&usd=2&usg=AOvVaw1ELQoBudt4J6rEPXQYUfMq)

General plan:[https://wiki.sluug.org/bock_upgrade_debian_10_-_11](https://www.google.com/url?q=https://wiki.sluug.org/bock_upgrade_debian_10_-_11&sa=D&source=calendar&usd=2&usg=AOvVaw1HUtBlOpn-HEzVcJf5mMDr)

[https://stllinux.org/](https://www.google.com/url?q=https://stllinux.org/&sa=D&source=calendar&usd=2&usg=AOvVaw2uM7FapJDOGtNsHLFt_7Rb)
The url link to this Zoom mtng is posted earlier on the day of the mtng at the above home page. It is the link called "linked here".

EVERY MTNG:

The Saint Louis MO, STL Linux Users Group (STLLUG) meets monthly to talk about Linux. Meetings are free and open to everyone.
At 6:30 PM CST we start with introductions, announcements, current events of interest, and a general CALL FOR HELP segment. Then we will go into the presentation of our main topic, sometime around or after 7:00 PM CST.
UnixFile SystemsInformation TechnologySystem AdministrationTechnology Professionals

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See [https://www.stllinux.org/](https://www.google.com/url?q=https://www.stllinux.org/&sa=D&source=calendar&usd=2&usg=AOvVaw3Y-AOfHPNKVMZJY5EzlB9e) for current information. The URL link to this meeting is posted earlier in the day of the meeting on the above home page. It is the link called "linked here".

• ONLINE MEETINGS ONLY until further notice.
• ONLINE session will use a remote video meeting service.
• HOW TO CONNECT instructions will be on the [https://www.stllinux.org/](https://www.google.com/url?q=https://www.stllinux.org/&sa=D&source=calendar&usd=2&usg=AOvVaw3Y-AOfHPNKVMZJY5EzlB9e) web page and our mailing lists. Note that your browser cache may need to be refreshed each time you check the web page for the instructions.
• We will open the remote session at about 6:00 PM, so that you can join early to test sharing your microphone, screen and video camera.
• The STLLINUX meetings are eight days after the SLUUG General meeting; so, usually on the third or fourth Thursday of each month from 6:30 PM to 9:00 PM.
• ==========================================

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https://stllinux.org/
HOW TO CONNECT instructions on https://stllinux.org/ web page and our mailing lists. Note that your browser cache may need to be refreshed each time you check the above web page for the instructions.

The Saint Louis MO, STL Linux Users Group (STLLUG) meets monthly to talk about Linux. This GNU/Linux Users Group usually holds its meetings on the third or fourth Thursday of every month. Meetings are free and open to everyone.

At 6:30 PM CST we start with introductions, announcements, current events of interest, and a general CALL FOR HELP segment. Then we will go into the presentation of our main topic, sometime around or after 7:00 PM CST.