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I built a new kernel and reboot my notebook with the new kernel. Unfortunately, the boot failed.

I want to reboot by using the original kernel, but there is a windows boot manager which hide the kernel choosing menu.

There are only two choices in the boot manager:

1.Windows 7


The Ubuntu option can not be chosen in more detailed. I think the Ubuntu option is set to use the latest kernel I built.

What can I do now? :"(

Update: Now I can see my /home by Ubuntu install CD. Using "try Ubuntu" option. Any thing I can do to recovery my system?

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up vote 0 down vote accepted

The grub appear by modifying the /etc/default/grub as the following!


Then I can choose which kernel I want to use to boot.

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