Ubuntu 10.04 Server not booting after typing 'reboot' in the command line

After going through the whole tutorial The Perfect Server - Ubuntu 10.04 [ISPConfig 3] and it all working I then typed reboot only to find that it now doesn't start up.

It gets to the menu I select 'Ubuntu, with Linux 2.6.32-22-generic-pae'

It then gets to the bit where it says on the screen 'fsck from util-linux-ng 2.17.2
/dev/mapper/Server-root: clean, 74347/1183200 files, 452719/4729856 blocks'

There is a cursor '_' which flashes and the boot does not progress.

If I hold ctrl alt delete it exits and reboots the system.

If someone could tell me how to get it back to when it was all working without having to go through the whole setup again that would be great.

 

Did you install a new kernel?

 

No i dont think I did, wat do u mean by that, sorry I am a bit new to linux.

Thanx for replying to my post, I really appreciate it as I really want to get it working.

 

The default kernel on Ubuntu 10.04 servers is 2.6.32-21-server, whereas yours is 2.6.32-22-generic-pae. So I think you somehow changed the kernel. Did you update your packages? Maybe that installed the new kernel.

 

With what u just mentioned I think I had 2 kernals installed in which I dont know how it came to be as I just installed it once.

I know this because upon startup I was able to select Ubuntu 10.04 2.6.32-21-server and Ubuntu 10.04 2.6.32-22-server like u said i had which must have caused the conflict.

I actually decided to reinstall Ubuntu 10.04 Server because I was too inpatient and really wanted it to get it working again.

I have another issue now, what steps should i take to change the name of the hostname, its named server1.example.com and I want to change it to say server.com

whats files would i have to edit? is it easy and will it effect the whole setup as I dont want to reinstall it a third time.

 

Code:

echo server.com > /etc/hostname
/etc/init.d/hostname restart

 

too easy thanxs for that.

now i want to setup ldap and samba, wat do u think the best tutorial is for that working with ubuntu server 10.04

also once this is all done I want to make a backup of it all so if i stuff something up in the future I can have a backup which i can start fresh again, like an image cd?