The problem is with monitor display for Ubuntu 12.04 server headless is showing a black screen, however, with this state, the SSH and all other functionality will work without any problem. Another problem is through SSH; the reboot will not work. It will be stuck on the GRUB menu after reboot; the physical machine has to be approached to start the session.

SERVER CODE executed after this is sudo apt-get upgrade grub

Reference

1. http://askubuntu.com/questions/272503/ubuntu-12-04-boots-into-black-blank-screen
2. http://serverfault.com/questions/243343/headless-ubuntu-server-machine-sometimes-stuck-at-grub-menu
3. http://lani78.wordpress.com/2012/07/19/change-to-static-ip-on-the-ubuntu-precise-pangolin-server/
4. have to look into fstab and bootloading mind these links
5. http://ubuntuforums.org/showthread.php?t=2014700
6. http://askubuntu.com/questions/121008/server-boots-to-grub-prompt-after-reboot
7. http://serverfault.com/questions/243343/headless-ubuntu-server-machine-sometimes-stuck-at-grub-menu
8. http://askubuntu.com/questions/164926/how-to-make-hdds-mount-at-startup-in-ubuntu-12-04
9. http://askubuntu.com/questions/248986/ubuntu-12-04-lts-no-longer-able-to-boot-normally
10. https://help.ubuntu.com/community/BinaryDriverHowto/ATI
11. https://wiki.ubuntu.com/DebuggingKernelBoot
12. http://askubuntu.com/questions/137655/boot-up-fails-drops-to-initramfs-prompt-12-04