elementary upgrade

link https://www.youtube.com/watch?v=JrHJKZ6PGt8 

upgrade to elementary 7

1. edit sources.list

# deb cdrom:[elementary OS 7.0 _horus_ - stable amd64 (20230129)]/ jammy main
deb mirror://mirrors.ubuntu.com/mirrors.txt jammy main restricted universe multiverse
deb-src mirror://mirrors.ubuntu.com/mirrors.txt jammy main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
deb mirror://mirrors.ubuntu.com/mirrors.txt jammy-updates main restricted universe multiverse
deb-src mirror://mirrors.ubuntu.com/mirrors.txt jammy-updates main restricted universe multiverse


2. enter and edit cd sources.list.d/elementary.list

deb https://ppa.launchpadcontent.net/elementary-os/stable/ubuntu jammy main
deb-src https://ppa.launchpadcontent.net/elementary-os/stable/ubuntu jammy main


3. sudo apt update && sudo apt upgrade