[systemd-devel] How to factory reset?

[Kay Sievers]

On Thu, Mar 12, 2015 at 11:30 AM, David Herrmann <dh.herrmann at gmail.com> wrote:
> On Thu, Mar 12, 2015 at 4:57 AM, Andrei Borzenkov <arvidjaar at gmail.com> wrote:
>> В Wed, 11 Mar 2015 18:50:23 +0100
>> Kay Sievers <kay at vrfy.org> пишет:
>>
>>> On Wed, Mar 11, 2015 at 6:32 PM, Chris Murphy <lists at colorremedies.com> wrote:
>>> > On Wed, Mar 11, 2015 at 2:22 AM, Tobias Hunger <tobias.hunger at gmail.com> wrote:
>>> >>> If you're concerned about bootloader configuration modification as a
>>> >>> threat vector, then it needs to go on an encrypted volume. This
>>> >>> suggests an initial bootloader configuration that only enables the
>>> >>> user to supply a passphrase/key file to unlock that volume, and then
>>> >>> load a new bootloader configuration file.
>>> >>
>>> >> I am still hoping secure boot and sd-boot will solve this issue
>>> >> mid-term by making sure all the early boot components are signed
>>> >> properly.
>>> >
>>> > The bootloader configuration files aren't signed. Maybe the should be.
>>>
>>> With systemd-boot, there will be no config to sign:
>>>   https://harald.hoyer.xyz/2015/02/25/single-uefi-executable-for-kernelinitrdcmdline/
>>>
>>
>> How exactly putting files in a container solves the problem that they
>> are not signed? This is not quite obvious from blog post.
>
> The config/etc. snippets are now part of the _signed_ EFI binary,
> which is always verified by the firmware. Therefore, we don't need to
> verify the other snippets separately.

http://people.freedesktop.org/~kay/efistub.txt

Kay