It’s not because the reboot requires it (even kernel can be kexec(1) in place for the last 10 years or so). It’s because your system state is mutable[1] (and s

It’s not because the reboot requires it (even kernel can be kexec(1) in place for the last 10 years or so). It’s because your system state is mutable[1] (and so you don’t know if it’s capable of coming back up). 1 - There are distributions where this isn’t the case, but it is for the majority.