Re: Is it possible to customise the d-i just to add an ssh authorized key for root

[Emanuele Rocca <ema@debian.org>]

On 2025-01-24 12:08, Colin Watson wrote:
> You can do this with preseed/late_command
> (https://www.debian.org/releases/bookworm/amd64/apbs05.en.html#preseed-hooks,
> and see https://www.debian.org/releases/bookworm/amd64/apb.en.html for
> general advice on preseeding if you haven't used it before).  Something
> like this should work:
> 
>   d-i preseed/late_command string mkdir -p /target/root/.ssh; echo 'ssh-rsa ...' >/target/root/.ssh/authorized_keys

An easy way to do that with preseeding, assuming your setup has network
connectivity, is adding the string Colin mentioned to a file such as
https://example.org/preseed.txt and then appending the following to your
kernel arguments when booting the installer:

  preseed/url=https://example.org/preseed.txt