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2 Answers
- Boot to your Linux.
- Open a Terminal window.
- Type: sudo os-prober.
- If the results identify a Windows 10 install, type sudo update-grub which will update the GRUB entries and add it.
How do I list grub entries?
Use the list-menu subcommand of the bootadm command to list the GRUB menu entries that are currently on the system. This information is supplied by the grub. cfg file.
How do I find grub config?
The primary configuration file for changing menu display settings is called grub and by default is located in the /etc/default folder. There are multiple files for configuring the menu – /etc/default/grub mentioned above, and all the files in the /etc/grub. d/ directory.
Is there a way to change the boot order of Grub?
You can also change the grub default boot entry from the command line without having to install any additional tool. This won’t change the order in the list but it will allow a different OS to boot by default, which sounds like what you may want anyway. First, make a backup copy of /etc/default/grub.
How to add Windows 10 to the Grub list?
By this command the system will automatically detect your Windows installations and add them to the GRUB list. This solution provides a proper entry in the grub2 menu and chainloads directly into Windows 10 without reference to the BIOS. It comes from this webpage so I claim no credit.
How to change the default menu item in Grub?
The line GRUB_DEFAULT=0 means that GRUB will select the first menu item to boot. Change this to GRUB_DEFAULT=saved. This change will make it easier to change the default item later.
How do I change the boot order in Windows 10?
Select Windows Boot Manager and move it to the top. Once done, you should have Windows on the top of this list. At this point, you should save this configuration. Once Windows is on the top, save your changes. This will edit the Grub menu and you can see the changed boot order at the next restart.