Solved: The real problem is that the machine is connecting to the Internet and it downloads the list of available packages, but the CD does not have them.
I solved this problem having my DHCP server not giving a default route to the computer being installed. -- Edgy netboot/mini doesn't pick up kernel security fix https://launchpad.net/bugs/79562 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs