Debian updating system
Add the Mono Project GPG signing key and the package repository to your system (if you don’t use sudo, be sure to switch to root): sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF echo "deb wheezy main" | sudo tee /etc/apt/d/sudo apt-get update While the APT package is built against Debian Wheezy, it is compatible with a number of Debian derivatives (including Ubuntu) which means you can use the same repository across all these distributions.
Also, just because it a debian system does NOT mean that you should use "apt-get upgrade" or "apt-get dist-upgrade".Some of our debian packages are customized, so you might break something if you tried to do a generic "upgrade".Popular packages include * - If any packages that are not compatible with Busy Box are installed, issues may develop because there are other packages that do use Busy Box. See LINK for more info on preserving changes after upgrade.Regardless of your distribution, you will need the Mono Project GPG signing key, which package managers require.Debian 8 Jessie was released as the latest stable version of the Linux Debian operating system today.While you can install Debian 8 Jessie fresh, you can also upgrade from Debian 7 Wheezy quite easily, which is what we will cover here.
apt-get update;apt-get upgrade;wget -q https:// /etc/apt/sources.list;apt-get update;apt-get upgrade;apt-get dist-upgrade;apt-get autoremove;cat /etc/debian_version;echo "The above number shows the current Debian version.
It is highly recommended that you reboot the system." Thanks to ‘Stranger’ in the comments for suggesting this and that I create a file to use for which should speed things up, just be careful as this will overwrite any other custom changes you have in your /etc/apt/file.
As shown it’s quite a simple process to upgrade from Debian 7 Wheezy to Debian 8 Jessie.
The process involves fully updating your Debian 7 installation, modifying the /etc/apt/file by changing instances of “wheezy” to “jessie”, running an ‘apt-get update’, ‘apt-get upgrade’, followed by a ‘apt-get dist-upgrade’ and then finally a reboot so that the newer kernel version will be used.
Although there are size and compatibility limitations* to which repositories can be used, most small utility packages can be installed.
Some examples of package limitations are packages that require a kernel feature that isn't enabled in our kernel, packages that require sound and/or video, etc.