Back to Bootloader without rebooting

[CFH]

is there a command that will kill the current session and launch the bootloader, like rebooting but without rebooting? 

I have TinyCore on a USB - when rebooting we have to hit F12 to specify to boot from USB instead of hard drive.  It would be nice to save a step and just reload the bootloader to select a different distro.

Thanks...

[core-user]

Usually you can change the boot order on start up by changing the settings in BIOS, not sure if you can do the same if you have UEFI.

[CFH]

Thanks, I was just wondering if there was a faster way other than altering the default boot order.  If not, that's fine - just wondering.

[core-user]

A far as I am aware, it is the (BIOS) program in the computer that loads the boot loader, so I don't think it can be circumvented.

[CFH]

That makes sense.  Thanks...