Dual Boot Grub Works Until You Run Win11 Once, then no grub.

[Rovercar]

Got new HP laptop with Win 11 Home. Installed MX, and all went well. Grub menu shows MX as normal including the Windows entry. MX runs fine and restarts with the correct grub screen. If you select Win 11 and run it once, the grug screen never returns, and it boot directly into Windows. In the bios, only the Windows EFI can be selected for booting.

The only way to get back into MX is to interrupt the boot process and go to the Windows repair and recovery where you can find the MX grub EFI file and start MX.

I know I'm not giving very much detail here, but whenever Win 11 starts up it picks its own EFI file and makes that the only one that can be designated for bootup.

Any ideas? Seen this before? Secure Boot is turned off. Can't find any mention of FastBoot.

AMD Bios...

[Eadwine Rose]

With all help requests, as per forum rules (which, if you haven't, please read), please share your full Quick System Info, do not edit.
If need be, you can do this using the LiveUSB, thanks.

[j2mcgreg]

If you haven't done so already, disable Fast Start up in Win 11.

[Kermit the Frog]

Yep.

... Can't find any mention of FastBoot. ..

Right-click the Start menu => Windows Terminal (Admin).

Issue:

Code: Select all

powercfg /h off

[Rovercar]

Thanks, Kermit. Will look again, but I've fallen out of love with this laptop. I just did the same installation on a desktop system, and never had tiniest problem.

[j2mcgreg]

Thanks, Kermit. Will look again, but I've fallen out of love with this laptop. I just did the same installation on a desktop system, and never had tiniest problem.

The thing is that you haven't told us anything pertinent about that laptop, so anything we can suggest is conjecture. For us to continue, you need to post the output from the QSI utility. The Quick System Info (QSI) utility is located in MX Tools and its output is automatically formatted for use here in the forum. Run the QSI utility, click “Copy for Forum” at the bottom and then just paste it here in your thread.

[baldyeti]

"MX boot options" has the ability to "Manage UEFI Boot Options", which allows one to choose which EFI boot entry is started by default. Select an MX entry instead of "Windows Boot Manager". The same should be doable from your firmware menus but how to activate and navigate this varies for each brand. Can be used from a live session, too (it is a friendly/GUI front-end to set EFI boot variables).

[FullScale4Me]

Boot with your MX Linux USB and run Boot Options. Click 'Manage UEFI Boot Options' and see what it shows. Should be similar to below.



If the 'Windows Boot Manager' is at the top click on it. Then click 'Move Down', then 'Close', then 'Apply' and finnally 'Close'.

Reboot. The Grub menu should return.

[m_pav]

This is becoming a common issue and believe me, when a machine's BIOS is sold out to Windows, this very thing will happen every time the Windows system is booted. I've tried all sorts of things and none of them worked.

After disabling every possible thing in BIOS and in Windows that could potentially lead towards stealing the top boot position, from using a single MVME with dual OS's to using to using 2x NVME's with MX Linux in the highest preferred NVME slot and Windows on the 2nd slot, the BIOS will always elevate the Windows bootloader over the Grub bootloader every single time Windows is run.

This is an issue that has to be put to the manufacturer as a bug and addressed with a BIOS update that stops Windows being given top priority and overwriting the Bios Boot Sequence every time it's run.

Oh, and it happens with Windows 10 as well as Windows 11.

We have to push back HARD on all PCB and Laptop manufacturers who implement this crap to stop this rising BS from happening. It's not up to us to get a signed bootloader key loaded into the BIOS, that's not the Manufacturers decision to make because the moment we purchase their hardware, it becomes ours and we get to choose what we run on it.

[Kermit the Frog]

...
This is an issue that has to be put to the manufacturer as a bug and addressed with a BIOS update that stops Windows being given top priority and overwriting the Bios Boot Sequence every time it's run.
...
We have to push back HARD on all PCB and Laptop manufacturers who implement this crap to stop this rising BS from happening. It's not up to us to get a signed bootloader key loaded into the BIOS, that's not the Manufacturers decision to make because the moment we purchase their hardware, it becomes ours and we get to choose what we run on it.