Why do I get the Recovery Menu on every reboot?

[J]

On Wed, May 12, 2010 at 19:31, Tom H <tomh0665 at gmail.com> wrote:
> On Wed, May 12, 2010 at 6:22 PM, Alex Schuster <wonko at wonkology.org> wrote:
>>
>> 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?
>
> It looks like your grub menu is defaulting to a "single"/"recovery" entry.
>
> So the solution MAY be to run "sudo update-grub"

Perhaps grub is looking for data that is unique to the first machine
(e.g. a disk UUID that can not exist on your 2nd server)