I have 3 disk:
/dev/sda - empty
/dev/sdb - Ubuntu 20.04.5
/dev/sdc - Ubuntu 20.04.5
I use UEFI bootloader to boot any system.
I decided to install in /dev/sda Ubuntu 22.04.2.
After installing Ubuntu 22.04.2 I was surprise when /dev/sda showed me GRUB menu with /dev/sdb - Ubuntu 20.04.5, /dev/sdc - Ubuntu 20.04.5.
I want to install Ubuntu 22.04.2 without GRUB menu like /dev/sdb or /dev/sdc. Also, I know os-prober should be disabled by default in 22.04.
I know I can edit /etc/default/grub and hide the GRUB menu or I can disable other SATA in UEFI but it doesn't answer at the questions why do this case is? What services do other OSs detect? Is this a bug? Can I get clear install without the GRUB menu?
...or I have to go around with home made methods like editing /etc/default/grub?
