Hello Raghav, 

"Raghav Gururajan" <raghavgururajan@disroot.org> writes:

> Hello Guix!
>
> I would like to insert/set password for the following, inside system configuration (config.scm):
> 1) Roor User
> 2) Regular User

--8<---------------cut here---------------start------------->8---
(user-account
  (name "charlie")
  (group "users")

  ;; Specify a SHA-512-hashed initial password.
  (password (crypt "InitialPassword!" "$6$abc")))
--8<---------------cut here---------------end--------------->8---

but please read
https://guix.gnu.org/manual/en/html_node/User-Accounts.html#user_002daccount_002dpassword

--8<---------------cut here---------------start------------->8---
You would normally leave this field to #f, initialize user passwords as
root with the passwd command, and then let users change it with
passwd. Passwords set with passwd are of course preserved across reboot
and reconfiguration.

[...]

Note: The hash of this initial password will be available in a file in
/gnu/store, readable by all the users, so this method must be used with
care.

--8<---------------cut here---------------end--------------->8---

> 3) LUKS Device

AFAIK it's not possible to provide the passphrase in the system
configuration, and it's by design :-)

I mean: you set the LUKS passphrase "imperatively" when encrypting the
device (e.g. during installation) or to change it later, storing it in
config.scm would mean to make it available in /gnu/store, readeable by
all users... and you should avoid it

[...]


HTH! Gio'

-- 
Giovanni Biscuolo

Xelera IT Infrastructures