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I meet some trouble when I upgrade my Ubuntu from 10.10 to 11.04. And I installed it on Vmware. When I start the virtual machine, I will enter the grub command line. By the way, One of my friends has the same trouble.

How can I solve the problem?

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migrated from Apr 29 '11 at 15:38

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what do you mean exactly? you mean it doesn't boot and stops at grub selection screen? – John Apr 29 '11 at 15:26
I had a similar problem (grub2 didn't recognize my / partition) when migrating 9.04 -> 10.04, this helped me:… – Piskvor Apr 29 '11 at 15:28
@John: grub does have a commmand line (the selection screen is a somewhat user-friendly interface to that); and unexpectedly seeing grub> is a dreadful experience (it drops to the command line if there's no meaningful config, or an error). – Piskvor Apr 29 '11 at 15:33
grub> exactly :( – Intelligence Gear Apr 30 '11 at 8:27
up vote 0 down vote accepted

I had the same problem. This worked for me:

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thanks very much! – Intelligence Gear Apr 30 '11 at 11:25
I boot the system following the instructions given by CLI to Boot. Then I fix the problem with the help of the your given url:sudo grub-install /dev/sda – Intelligence Gear Apr 30 '11 at 11:34

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