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I can't get Ubuntu to dual boot with Windows 10

lc flag

I'm trying to create a dual boot machine with Windows 10 and Ubuntu. I managed to install Windows and shrink the drive to make space for Ubuntu and then I managed to install Ubuntu fine. However, I don't get a grub screen with both the Windows and Ubuntu option. I changed the boot order of Windows and Ubuntu so Ubuntu was first. I disabled legacy boot from BIOS and at least a grub menu appeared however it didn't show the windows option. I re-installed grub from a terminal in Ubuntu using the command:

install-grub /dev/sda

and then updated it using the command:

update grub

And got an error in the output you can see in the screenshot. What else can I do to achieve my goal, I'd be grateful for any help anybody can give?

enter image description here

Regards

Nick

ChanganAuto avatar
us flag
that `os-prober` doesn't run by default in new Ubuntu releases has been in the news (sort of). You may need to edit `/etc/default/grub`and add a line like `GRUB_DISABLE_OS_PROBER=false`.
oldfred avatar
cn flag
Is Windows installed in UEFI boot mode to gpt partitioned drive? And then is Windows fast startup/hibernation off.
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