Win11 Pro not included in Grub boot menu

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Sewolf
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Win11 Pro not included in Grub boot menu

Post by Sewolf »

I set a 1TB SSD into half, reinstalled Windows 11pro into one 500GB and the Commodore Vision on the other, except after installing the Commodore Vision the Grub does not show an option for Windows booting. As I don't know enough script for adding it myself, I am wondering if I can get some help with this please.

Brian Wall

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LeoNigro
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Re: Windows 11Pro not included in Grub fresh installation

Post by LeoNigro »

Hi Brian,

I've not yet tested this with Windows 11. It worked in the original Commodore OS, and the script has not changed.

I assume you installed Commodore OS before Win 11.....as that would have created the grub menu partition.
If you didn't then you can't restore the boot menu, as you didn't create it.

Addendum:
Just to re-iterate:
You install Commodore OS first, and leave unallocated space for Win11 on the primary(!!!!!) drive. I don't think it will boot off an extended drive.
You install Windows in that unallocated space, which will likely disable the GRUB menu.
Then you go to the Commodore OS Live installer and perform the action below.


When you run the "live" Commodore OS image (the media you used to install the OS), go to the top menu
System --> Commodore OS --> Restore Boot Menu

Hopefully that will restore the grub boot menu.

Please let us know how that goes.
Image Commodore OS creator. Site Admin. Owns: C64, C128D(Sidekick64), A500, A1000(piStorm), C64x(i7)

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LeoNigro
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Re: Win11 Pro not included in Grub boot menu

Post by LeoNigro »

My apologies, this process simply no longer works with Windows 11.
It might work for Windows 10 which lets a few things slide (and then maybe you can upgrade to Win 11).
Microsoft seem to have gone out of their way to prevent it in order to be the pre-eminent OS.
You can install both Windows 11 and Commodore OS on the same machine.
However, I found you can only switch between them via BIOS settings and they differ by chip and motherboard manufacturer.
On mine, I get away with enabling and disabling CSM to switch between the OSes.
BTW Windows 11 is finicky now, and insists on being the first OS installed.
Image Commodore OS creator. Site Admin. Owns: C64, C128D(Sidekick64), A500, A1000(piStorm), C64x(i7)

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