Q4OS Forum

somebodyinlowersaxony

Member

Registered: 2023-10-18

Posts: 2

problem with GRUB2

Hello,
I have a problem with GRUB2.
First I had Windows installed on the first hard drive.
Then I installed Aquarius on the second hard drive.
Everything ran without errors.
But after restarting the system, no GRUB2 menu appears.
Only Windows starts, although the boot order is set correctly. The first thing to do is to start Aquarius.
To start Aquarius, I always have to boot from the Super Grub CD.
After a GRUP update, this message appears:

"somebody@lowersaxony-laptop:~$ sudo update-grub.
Generate grub configuration file ...
Linux image found: /boot/vmlinuz-6.1.0-13-amd64
Initrd image found: /boot/initrd.img-6.1.0-13-amd64
Linux image found: /boot/vmlinuz-6.1.0-11-amd64
Initrd image found: /boot/initrd.img-6.1.0-11-amd64
Warning: os-prober will not run to detect other bootable partitions.
Systems on it will not be added to the GRUB boot configuration.
Check the GRUB_DISABLE_OS_PROBER entry in the documentation.
Add boot menu entry for UEFI firmware settings ..."

How do I get the GRUB2 menu back so I can select whether to boot Aquarius or Windows?

with greetings

Somebodyinlowersaxony

q4osteam

Q4OS Team

Registered: 2015-12-06

Posts: 4,501

Website

Re: problem with GRUB2

You likely need to reorder boot sequence in UEFI BIOS.

somebodyinlowersaxony

Member

Registered: 2023-10-18

Posts: 2

Re: problem with GRUB2

Hello,
the order is set correctly in the EFI BIOS.
In the meantime, I have activated os-prober.
"sudo update-grub" now also recognises it.

"Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.1.0-13-amd64
Found initrd image: /boot/initrd.img-6.1.0-13-amd64
Found linux image: /boot/vmlinuz-6.1.0-11-amd64
Found initrd image: /boot/initrd.img-6.1.0-11-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Windows Boot Manager on /dev/sdb5@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings ..."

Still no boot menu and only Windows is booted.

nightflier

Member

Registered: 2023-07-11

Posts: 23

Re: problem with GRUB2

GRUB needs to be reinstalled. A search for "how to repair grub after installing windows" will find several guides. Here is one: https://www.pendrivelinux.com/restore-g … s-install/