Other OS not visible in grub menu

Ask Fedora
1

I was running fedora kde plasma and wanted to shift to gnome. I installed it “/” and “/boot” on a new partition, using same partition “/boot/efi” for my KDE and new Gnome install. I want to boot into my KDE plasma instance but its not showing up in GRUB Boot Menu. I ran following commands but still nothing.

user@fedora:~$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found Fedora Linux 42 (KDE Plasma Desktop Edition) on /dev/nvme0n1p6
Adding boot menu entry for UEFI Firmware Settings ...
done

user@fedora:~$ sudo os-prober
/dev/nvme0n1p6:Fedora Linux 42 (KDE Plasma Desktop Edition):Fedora:linux:btrfs:UUID=93e5f7a4-1f61-44eb-b68d-b29398443464:subvol=root00
2

Solution found.