Blank screen after grub menu with Ubuntu-server installation

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It is possible that after Ubuntu server installation is complete when system reboots, there is blank screen after grub menu. The problem can be caused by many reasons, the most common reason being unsupported graphics card. In such cases to solve the problem use following steps:

1. Use 'e' on grub menu to edit the boot option
2. For line starting with 'linux' append 'nomodeset' without quotes at the end of the line
3. Press boot key as shown below in message. Typically Ctrl+X or F10.
4. If systems boots properly then use following steps to make these changes permanent:
   1. Edit '/etc/default/grub' file and append 'nodmodeset' to value of variable 'GRUB_CMDLINE_LINUX_DEFAULT'
   2. Run 'sudo update-grub' to generate new grub.conf with modified settings.
   3. Use 'less /boot/grub/grub.cfg' and verify that all boot lines starting with 'linux' have nomodeset appended to them

   Note that this should not be achieved by directly editing '/boot/grub/grub.cfg' as the changes would then get overwritten wheneve new grub.cfg is generated.

Steps learned from http://www.tuxgarage.com/2011/01/ubuntumaverick-blank-screen-problem.html

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