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Ubuntu is the only OS installed on my Acer netbook. Few, if any, problems until, with no warning, it vanished from the boot list for the hard drive. I have been a ble to create a bootable USB to be ablee to use the netbook but have not been able to restore Ubuntu to the hard drive boot list.

As you can probabaly tell from the way the problem is described, I am a complete novice so any help you can give should assume no knowledge at all on my part and should be written as if for a simpleton.

Thank you.

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What boot list? If it is the only OS installed, there isn't a list. – psusi Jan 5 '12 at 22:57
Can you boot to Ubuntu..? – Uri Herrera Jan 5 '12 at 23:38

If you messed up everything and want to correct things. This has an auto correct button. If the ubuntu is there it will find it, and it will work.

    sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
    sudo apt-get install -y boot-repair && sudo boot-repair


enter image description here

Otherwise system recovery from Live USB/CD boot menu.

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[...]Ubuntu is the only OS installed on my Acer netbook[...] What is there to repair?. – Uri Herrera Jan 5 '12 at 23:17
It will repair the boot list, so you can normaly boot ubuntu – gajdipajti Jan 5 '12 at 23:31
Yes i know, but if Ubuntu is the only OS there's nothing else, nothing is actually broken, what is left to repair then?. He doesn't have a list because you need 2 things to make a list, there's no other OS=There's no list to be made=There's nothing Broken=There's nothing to fix. – Uri Herrera Jan 5 '12 at 23:32
What list if it's the only thing there? – Uri Herrera Jan 5 '12 at 23:35
There may be a list of kernels or other options like memory test. – user8290 Jan 5 '12 at 23:40

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