How to upgrade the system to the newer major level or update the system to the latest patch level and errata?
Before you begin the further steps, please be sure to making a backup from the system or if you are using a UCS on a VM, make a fresh snapshot from an shutdown system. Just simply for safety.
Step 1: Update to the latest patch level and errata
First of all check your system info with
the next step will be to update the system to the latest UCS 4.4 patch level and errata with:
univention-upgrade --help Usage: univention-upgrade [options] Install UCS release and errata updates. Options: -h, --help show this help message and exit --updateto=UPDATETO update up to specified version --check check if updates are available --setucr if set, variable update/available will be updated --ignoressh pass --ignoressh to univention-updater --ignoreterm pass --ignoreterm to univention-updater --noninteractive Perform a non-interactive update --iso=ISO ISO image for the repository update --cdrom=CDROM CDROM device for the repository update App updates: --enable-app-updates Update installed Apps --disable-app-updates Skip updating installed Apps --username=USERNAME Name of the user used for registering the app --pwdfile=PWDFILE Name of the file containing the user password
While the update maybe you get an ssh issue and that’s why i prefer to ignore ssh and won’t interactive like in this command
univention-upgrade --updateto=4.4-9 --ignoressh --noninteractive
If you want to update the installed app while the system update, you can use this command as well
univention-upgrade --updateto=4.4-9 --ignoressh --enable-app-updates --noninteractive
After a successfully update your system will be on
UCS 4.4-9 errata1371
Step 2: Preparation of of the system
So now for your safety, shutdown the system and make another backup or snapshot from the VM.
At first we have to check the Release-Notes 5.0-0 and if you want, make an
Preparation of update to check the system and find possible issue before the upgrade begins.
So the next step to UCS 5.0-0 will also check the system before the upgrade starts.
Step 3: Upgrade the system to the next major level
At first you have to upgrade the system to the next major level UCS 5.0-0
univention-upgrade --updateto=5.0-0 --ignoressh --enable-app-updates --noninteractive
And after successfully upgrade to UCS 5.0-0 errata195
Just for your safety, we prefer to make another snapshot from a shutdown system now.
Please note here the release nodes and the procedure regarding what needs to be done after an upgrade.
Postprocessing of the update
A recommendation here is also to have read through the release notes once before executing the next step.
Release Notes / Changelogs
Step 4: Update the system to the latest patch level
From here you can directly update the system to the latest patch level
univention-upgrade --ignoressh --enable-app-updates --noninteractive
After the update is successfully, restart the system with
The Primary Directory Node (DC-Master) is have to be on the latest version level in the domain because it is the domain leader.
This is for the Backup Directory Node (DC-Backup), Replica Directory Node (DC-Slave), Managed Node (Memberserver) after the successfully update to the latest patch level and reboot, new or updated join scripts need to be executed by running the command
univention-run-join-scripts as root.
Post processing of the update for UCS 5.0-3
Also you can check the system after the whole upgrade/update with
Some information for Errata Updates UCS 5.0-x