On Thu, Mar 19, 2020 at 06:52:52PM +0100, Marius Schwarz wrote: > Am 19.03.20 um 17:11 schrieb Michael Cronenworth: > > On 3/19/20 11:04 AM, Marius Schwarz wrote: > >> correct and thats the main issue, as long you have grub where you can > >> edit the kernel line to start in runlevel 1. > >> This makes the encryption null and void. > > > > Adding a grub password will prevent those without it from editing your > > boot parameters. By default you can still boot without the grub > > password. Does that help? > > It would solve a problem. > > - does it prevent updates ( after booting into rl 5 ) of grub?
Yes. Updating GRUB, kernel, and initramdisk requires a physical access (or better said a trusted environment). -- Petr
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