after installation of DoudouLinux on HDD I tried to update the system.
In LXterminal I tried apt-get as user and with sudo, but both attempts failed. What to do with it?
tux@doudoubox:~$ apt-get update
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
tux@doudoubox:~$ sudo apt-get update
[sudo] password for tux:
Sorry, user tux is not allowed to execute ‘/usr/bin/apt-get update’ as root on doudoubox.