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I upgraded Ubuntu on my laptop and I have to use the old boot link for it to work. How can I make my laptop automatically use the working boot-up? When I use the new GRUB entry the screen goes blank and the computer seems to hang.

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2 Answers 2

Reset to default
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you have to know the number of the working item

For example: The First line has number 0 , the second 1 etc.

Now

sudo gedit /etc/default/grub

And change the line GRUB_DEFAULT=0 to

GRUB_DEFAULT=THEWORKINGNUMBER

now execute sudo update-grub

Everything should work now.

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2

Install startupmanager Install startupmanager

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  • In Default operating sytem,choose your old grub entry and click close.
  • Reboot your system.
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