Need some grub help please

[Lend27]

I have LL 2.4 installed with grub2 bootloader installed on sda1.
I have windows installed with legacy boot on sdd2.

Grub down not show the windows partition.
When the grub screen shows on boot, my only option is LL.

If I go into the bios boot options screen I can select the "windows boot manager" option and windows will boot.

I ran the os-prober command but it didn't find the windows partition.
I ran update-grub2 but still no windows in the list.

The output of fdisk -l shows an asterisk for boot on the sda1 linux partition, but it doesnt show any asterisk in the windows partition. Yet it boots from the bios boot options menu.

Should I install grub2 to the windows sdd2 boot partition?

How can I add windows to my grub2 menu?

Thanks
Len

[LL-user]

Hi Len,

I'm in the same boat as Rok (post: https://www.freecinema2022.gq/forums/insta.../#msg15616), I do not dual boat with Windows.

I would start this journey by looking into chainloading the Windows bootloader. Something like this:
https://wiki.gentoo.org/wiki/GRUB2/Chain...I_with_GPT

Also you might want to have a look at this:
https://askubuntu.com/questions/135272/h...-partition

Please do NOT install GRUB2 to your Windows boot partition! In my understanding this would overwrite the Windows boatloader you need to boat Windows and that should get chainloaded via GRUB2.

Hopefully someone with more practical experience will join the discussion soon

[Wirezfree]

Hi,

Don't want to distract the thread, so ignore if you wish.

Unless there is some compelling reason to dual boot..??
Why not run Windows in Virtualbox.
I still have my old XP system running in VBox,
it behaves/works just like it did when it was on my old PC
Advantage for me is I can start it when I need it, but keep working in LL also

[Lend27]

Hi Len,

I'm in the same boat as Rok (post: https://www.freecinema2022.gq/forums/insta.../#msg15616), I do not dual boat with Windows.

I would start this journey by looking into chainloading the Windows bootloader. Something like this:
https://wiki.gentoo.org/wiki/GRUB2/Chain...I_with_GPT

Also you might want to have a look at this:
https://askubuntu.com/questions/135272/h...-partition

Please do NOT install GRUB2 to your Windows boot partition! In my understanding this would overwrite the Windows boatloader you need to boat Windows and that should get chainloaded via GRUB2.

Hopefully someone with more practical experience will join the discussion soon

Thanks LL-User,

Did you see my post in the other thread?
I found out why I didn't have a grub boot menu..... this might work for you.
You have to install Grub-Customizer first. Then start it and check your grub config.
Here is the text from my other post:

Hey guys, just wanted you to know that I found the reason for not having a boot menu screen at startup.
I installed "Grub Customizer" so I could take a look at the grub config.

It turns out that it was configured for no menu, and a boot delay of 0 seconds. Meaning that there would be no boot menu and it would boot directly into the default OS.

I enabled  the boot menu option and put a delay of 3 seconds.
Lo and behold, the boot menu now shows. LL is the only item on there at present.
I'm still trying to figure out how to add windows to the menu. If anyone has any input I'd be appreciative. My Win10 install is on another internal SSD. In Gparted the boot partition shows only as boot, no eufi. Not sure why it doesn't show in grub2.

But anyway, the grub menu issue is resolved.


Hope that helps you. I will wait to see if anyone can help my situation.
In the meantime I will just boot windows from the bios boot option screen.

Thanks!
Len

[LL-user]

Hi Len,

I had seen your other post. Therefore I didn't address the issue (anymore) to actually activate the GRUB menu But went straight to how I would add an entry for Windows in that menu.

"Would" means, in case I needed it. Thank God I don't I don't have any Windows machine running. All my computers run Linux

Have you seen this post:
https://www.freecinema2022.gq/forums/tutor...y-enabled/
That might also help you on your journey.

All the best