Linus Torvalds writes: (Summary) Things like disk encryption
(common for a lot of people) for example means that you simply won't
be booting that machine without the user noticing.
be booting that machine without the user noticing.
Or think of virtual machines - which people often use on purpose for security things. Again, they very much are _not_ going to have secure boot, but it's not necessarily even possible to "replace the kernel and reboot" at all, because the kernel came from outside the virtual machine entirely, and rebooting might just kill the VM rather than restart anything.
restart anything.
So I really think you're pushing this whole "not secure boot" means "trivial circumvention" much much too hard.
be booting that machine without the user noticing.
Or think of virtual machines - which people often use on purpose for security things. Again, they very much are _not_ going to have secure boot, but it's not necessarily even possible to "replace the kernel and reboot" at all, because the kernel came from outside the virtual machine entirely, and rebooting might just kill the VM rather than restart anything.
restart anything.
So I really think you're pushing this whole "not secure boot" means "trivial circumvention" much much too hard.