Zorin Forum

How do you setup GRUB?

I installed Zorin on a computer with Windows 10 Pro. I selected to partition the hard drive into windows and Linux partitions. When I ran the install, the system asked me if I wanted to use dual boot and I said yes. However, when I startup the PC, it only boots into Zorin. I can manually select the Windows 10 partition and start up my PC that way, but I don't want to have to use the BIOS way to select my OS. I believe that GRUB is not setup correctly, but I don't know how to even get into GRUB let alone configure it.

What do I need to do?

Can you please try

sudo apt install os-prober efibootmgr

Once installed, run

sudo grub-mkconfig -o /boot/grub/grub.cfg

Thanks for your suggestion. I ran the two commmands but nothing has changed...:frowning: See the screenshots below for the details. I checked my bios boot sequence and it shows:

  • Ubuntu

  • ATA Hard drive

  • Windows boot manager

There are also a bunch of USB boot options below these three.

Something is preventing GRUB from firing off before the Ubuntu partition.

Any ideas?

Grub is locating your linux-image for Zorin OS. And the Plymouth...
At this stage, I would check your advanced BIOS / EFI Settings on your Motherboard, rather than anything in Linux.
Please also see:

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