The manual provides a few options:
nixos-rebuild test
nixos-rebuild boot
nixos-rebuild switch -p test
I am missing the option that does nixos-rebuild switch
but also adds the previous configuration to grub. Does it exist?
The manual provides a few options:
nixos-rebuild test
nixos-rebuild boot
nixos-rebuild switch -p test
I am missing the option that does nixos-rebuild switch
but also adds the previous configuration to grub. Does it exist?
The previous configuration should be in grub already, as well as the current.
And nixos-rebuild switch
will make the current the previous, the previous that one before provious and the new one the current.
Ah, indeed. Under “All configurations” there is a numbered bunch.
Are they counting up or displaying age? So is 1 the oldest or - in my case I have 1, 2, 3 - is 3 the oldest?
1 is the first you created, everything you do a switch
your current generation number gets increased by 1.