Instructions

You can change your repo both inside GUI and Manually


Changing repo through GUI

Open "Software and Updates" , then change the Server like this:




Chaning repo Manually

You have to change your repo address in /etc/apt/sources.list

After that run the "apt update" command

20.04:

#####IUT REPO #######

###### Ubuntu Main Repos

deb http://repo.iut.ac.ir/ubuntu/ focal main restricted universe multiverse

deb-src http://repo.iut.ac.ir/ubuntu/ focal main restricted universe multiverse

###### Ubuntu Update Repos

deb http://repo.iut.ac.ir/ubuntu/ focal-updates main restricted universe multiverse

deb-src http://repo.iut.ac.ir/ubuntu/ focal-updates main restricted universe multiverse

18.04:

#####IUT REPO #######

###### Ubuntu Main Repos

deb http://repo.iut.ac.ir/ubuntu/ bionic main restricted universe multiverse

deb-src http://repo.iut.ac.ir/ubuntu/ bionic main restricted universe multiverse

###### Ubuntu Update Repos

#deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse

deb http://repo.iut.ac.ir/ubuntu/ bionic-updates main restricted universe multiverse

#deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse

deb-src http://repo.iut.ac.ir/ubuntu/ bionic-updates main restricted universe multiverse