How to be able to select a disk to boot the OS at machine startup?

Question

Windows

I have two ssds with ubuntu and windows 10 installed on them. I want to have some kind of convenient option to select the desired system (disk) when the machine is turned on (just a selection or switching to selection by pressing a button), is there such a possibility? And then go into the boot menu and change it every time it's somehow gemorno ...
Mother: asus z170-P

Answer 1

You need to properly configure the bootloader. Made from Linux.
If you have a UEFI system, then efibootmgr is in hand.
If Bios (GRUB), then grub.

Answer 2

Put GRUB on the Ubuntu disk when both disks are inserted into the computer.

Answer 3

And then go to the boot menu and change it every time it's somehow gemorno

what's hilarious?
press F12 and select a disk - it's just gorgeous
, but if something comes up, without skills, restoring both Windows bootsections and grub - that's gimmicky
ps I would even say - with skills, it's still easier to keep every little animal on your device, and get bogged down by F12. this is the most comfortable
pps in grub , in Windows BCD (and there it is also possible, yes, and Linux is also possible, if you figure it out) - you still need to move your fingers .... what is worse than choosing F12? it is not only no worse, it is cooler because different OSes (provided that there are enough devices) do not spoil each other in Butovo sectors and the like

Answer 4

I have Windows 10 (for gaming) on ​​one drive, and Linux Mint (for coding) on ​​the other. By default, the disk with Linux is selected, if you need to get into Windows - after turning it on, I press F8 and select the desired disk. Simple, convenient. The operating systems are isolated from each other, the failure of the boot of one of them will not affect the other.