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I'm new to Ubuntu, and Linux, so I really don't know how to go about debugging this issue.

This is on a Lenovo U410 laptop with Windows 8 as a secondary partition.

I had a crash earlier today, I went to reboot my machine, it hung for a long time, I realized it wasn't actually shutting down, it was just going in and out of hibernate. I forced the computer to reset by using the silly 'one key restore'. Pressing and holding the power key would only hibernate the computer over and over.

Finally was able to get it to post but I can now only launch Windows, Ubuntu hangs.

I was able to launch it into recovery mode, this is what it shows on my screen, and where it gets stuck.

enter image description here

It stalls on the - Refined TSC clocksource calibration

Any help is appreciated, I have no idea what to do at this point, this seems far beyond my ability.

Thanks

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