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Boot problems after trying to install Ubuntu (dual boot w Windows)

au flag

Like the title states, I was attempting to install Ubuntu as a dual os alongside windows. I was able to download it onto a USB drive and was able to boot Ubuntu from it ok.

After a couple of uses I wanted to actually install it on my pc alongside Windows. Everything was going well until I ran into and Intel RST issue that prevented me from being able to install it.

I followed the instructions from: https://help.ubuntu.com/rst/

I came across the boot problems mentioned in the instructions. I followed the steps to repair but when I go enter ‘disk part’ and list the volumes, there is not one that shows for Windows. I assume that it would be letter C but it has no label so I am unsure. When I try to select and set C as active it gives me the following : “The selected disk is not a fixed MBR disk. The active command can only be used on fixed MBR disks”.

Any tips would be helpful, thanks in advanced!

Marco Santini avatar
au flag
The following images may help: https://imgur.com/a/c4SddeC
oldfred avatar
cn flag
Did you install AHCI drivers into WIndows first? Windows AHCI instructions - some have found safeboot method better https://www.dell.com/community/Laptops-General-Read-Only/Dell-M-2-FAQ-regarding-AHCI-vs-RAID-ON-Storage-Drivers-M-2-Lanes/td-p/5072571 & https://askubuntu.com/questions/1233623/workaround-to-install-ubuntu-20-04-with-intel-rst-systems And is Windows fast startup/hibernation off? What brand/model system? Some require extra settings.
Score:0
fr flag

Try setting GRUB to be the default bootloader instead of Windows Boot Manager and see if that helps with the issue. There's a great instructional guide found here. He mentions having Ubuntu installed first. I personally had Win10 installed first on my system and it still worked without any issues for me.

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