I am new to Ubuntu and I think running certain commands have upgraded my system.
root@edutest:~# cat /etc/issue Debian GNU/Linux 7.0 \n \l cat /proc/version Linux version 2.6.32-5-686 (Debian 2.6.32-46) (firstname.lastname@example.org) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Sun Sep 23 09:49:36 UTC 2012
when I do apt-get install build-essential:
root@edutest:~# apt-get install build-essential Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: build-essential : Depends: libc6-dev but it is not going to be installed or libc-dev Depends: g++ (>= 4:4.4.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.
I have downloaded packages and tried to install them, it says the newest version is already installed