How to Boot Directly to Ubuntu After Removing Windows from Dual Boot

bootgrub2

I just removed windows from my laptop completely. I will install it on virtual box.
My question is now, how and from where do I edit the boot options to boot directly in Ubuntu after I open my laptop without passing through the boot options page or if this is not possible, how do I remove the Windows boot line from there?

Best Answer

You can edit grub to don't wait any second (instead of 10 seconds) and boot the first option in the menu:

1) Alt + F2 and paste gksu gedit /etc/default/grub

2) Search for the line "GRUB_HIDDEN_TIMEOUT=10" and change it to "GRUB_HIDDEN_TIMEOUT=0"

3) Open a terminal and paste: sudo update-grub

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Open the terminal application and enter

sudo update-grub

This probes for other existing OSes and writes a new grub configuration; since you deleted the windows partition, it shouldn't be in the menu anymore on the next boot.

You can also disable the Grub Os Prober if you like. Just add GRUB_DISABLE_OS_PROBER=true to /etc/default/grub and run sudo update-grub again.

To disable the display of the menu:

Edit /etc/default/grub with elevated rights

and set GRUB_TIMEOUT=0

Run sudo update-grub again.

Best Answer

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