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The problem is so weird. I upgraded my laptop from 13.04 to 13.10. The upgrade went smoothly and I restarted the machine as required when the upgrade finished.

After the restart, the grub menu was still shown as usual but nothing showed up after I select ubuntu as I used to. The ubuntu was NOT booted and the harddisk LED was NOT blinking neither. Only a blank screen was shown forever.

However, after I plug in any remote storage disk/harddrive into the laptop and start it, ubuntu runs. As far as I see, the only difference is in the bios boots option, there is one more entry for booting from usb with a usb disk inserted...

The problem is still there whenever I start it without a usb disk inserted...

The machine is dual-booted with windows 8 and the windows OS works fine after upgrade...

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Is your USB bootable? If USB is boot-able and when you start your system while USB inserted, Ubuntu boots from your USB or from your HDD? –  Saurav Kumar Oct 22 '13 at 1:29
    
It boots from my HDD. I just need to insert a random storage, it boots to the installed Ubuntu.. –  user205897 Oct 22 '13 at 10:09
    
Execute these commands once: sudo update-grub , sudo update-initramfs -u. and try to restart your system without the any removable USB. If it doesn't help then give a try to Boot-repair –  Saurav Kumar Oct 22 '13 at 15:38

1 Answer 1

I have experienced pretty much the same symptoms as above. After removing the "quiet" and "splash" kernel options from the grub command line and booting Ubuntu I saw more clues and my problem seems the same as described here: https://answers.launchpad.net/ubuntu/+source/acpi/+question/175746 In fact, the suggestion at the bottom of that page works for me, namely: adding the kernel option "processor.nocst=1" to the grub command line. Hope this helps anyone.

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