version 20.04 is not supported anymore for ubuntu

The message you are posting is not from ISPConfig itself; it's from the auto-installer. And as we currently prepare for releasing Ubuntu 24.04 support next week, we have removed Ubuntu 20.04 support from the auto-installer already. This is about the auto-installer only, so about installing new systems, and not about ISPConfig. Ubuntu 20.04 support from ISPConfig will not get removed. Installing new systems on a 4-year-old OS does not make much sense anyway; you better install your servers using Ubuntu 22.04 or wait a few days and install it then with Ubuntu 24.04 right from the beginning.

 

That's no problem in general. You just have to ensure all servers use the same ISPConfig version. And you can most likely not use mirroring of services between different OS versoins, but that's not related to ISPConfig but to the service itself.

 

Which error do you refer to? I'm not aware of any fstab error that needs fixing.

Please create your own thread next time, as this thread here is neither about fstab nor about manual installation mode.