Why do I get the Recovery Menu on every reboot?

[Alex Schuster]

Hi there!

First, I am quite new to Ubuntu. I had used Debian already, but thas was 
ten years ago. Now, we are migrating our compute servers at my institute 
from Fedora to Ubuntu. So far, I am quite pleased, I never liked Fedora 
much, and Ubuntu is working just fine. And there are things like the 
Debian Neuroscience Repository that ease the installation of our tools. 
BTW, personally I am a long-time Gentoo user.

I have Ubuntu 9.10 server running on one of our servers for a while now, 
and I want to duplicate it on the other servers. I do not want to do a 
reinstall and add every change I did to the system to the others again and 
again, so I created tar balls of the the partitions (using an LVM snapshot 
for consistency), and unpacked that on a new machine. After some slight 
changes (/etc/hosts and hostname, SSH keys, UDEV persistent net rules), 
the new system boots fine, except for one problem: On every reboot, I get 
the Recovery Menu. I cannot see all the options because some other boot 
process overwrites some of the lines, but I guess you know what I mean. I 
just press the enter key, and the system boots up just fine. Still, this 
would be quite annoying for a headless server when some person has to go 
down into the server room, plug in a keyboard and press the enter key when 
one of the servers has to be rebooted.

So, does anyone have a quick idea what is going on? And how I can get rid 
of this menu?

	Wonko