Sorry, user "user" is not allowed to execute '/usr/bin/apt-get update' as root on
apt-get, debian, roles, sudo
Solution
I just solved this by reading Debian sudo page with two steps: 1) add the user to be sudo to the sudo group. 2) log out and log back in to gain that group's permissions.
Debian page said use: `# adduser xsma sudo`, while I had used `# vigr` and `# vigr -s`.
Problem
I've installed Debian 7 and just executed `sudo apt-get update` and got this error: ``` Sorry, user xsma is not allowed to execute '/usr/bin/apt-get update' as root on ACS.ACS ``` my user is "xsma" and "ACS" is the name of the computer.