I'm trying to install Ubuntu server from ISO, on a system that doesn't have networking connectivity to the Internet, but I'm not able to get past a certain point.
Initially, the process proceeds normally, it seems to partition things correctly and installs the base system.
However, when I get to the "Configure the package manager" stage in the "Ubuntu installer main menu", and I hit "enter", I see a dialog that says "Configuring apt" with a progress bar, and then it goes right back to the "Ubuntu installer menu".
The same thing happens no matter what other option I select (e.g., Install the GRUB boot loader on a hard disk, Finish the installation, Abort the installation): a dialog that says "Configuring apt" with a progress bar appears, and then it kicks back to the installer menu.
I'm at a loss to how to troubleshoot this, since I don't see any error message during this process.
I've tried both Ubuntu Server 12.04 and Ubuntu Server 12.10, same result.