bug#29706: GuixSD: Please add the ability to change shells for root

bug#29706: GuixSD: Please add the ability to change shells for root

[BJH2017]

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Using the configuration file /etc/config.scm it is fairly straight forward
to change shells for a given user account on GuixSD 0.14.0, such as using:

(operating system
   (users (cons (user-account
                         (name "user")
                         ....
                         (shell "/run/current-system/profile/bin/zsh")))))

, but for root this is impossible. Is it possible this feature could be
added?

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bug#29706: GuixSD: Please add the ability to change shells for root

[Ludovic Courtès]

Hi,

BJH2017 <brentonhorne77@gmail.com> skribis:

> Using the configuration file /etc/config.scm it is fairly straight forward
> to change shells for a given user account on GuixSD 0.14.0, such as using:
>
> (operating system
>    (users (cons (user-account
>                          (name "user")
>                          ....
>                          (shell "/run/current-system/profile/bin/zsh")))))
>
> , but for root this is impossible. Is it possible this feature could be
> added?

I just realized it’s actually possible: if you add an account with
UID 0, then that account is the root account.

So you can write:

  (operating-system
    ;; …
    (users (cons (user-account
                   (name "this-can-be-root-or-something-else")
                   (uid 0)
                   ;; …
                   (shell (file-append zsh "/bin/zsh")))
                 …)))

… and you get a root account with the chosen name and shell.

Does it work for you?

I’ve clarified the situation:

  https://git.savannah.gnu.org/cgit/guix.git/commit/?id=45f6211730157c50ade4dbf770e60871f1067ad6

Thanks,
Ludo’.

bug#29706: GuixSD: Please add the ability to change shells for root

[Ludovic Courtès]

Please always keep the list Cc’d.

BJH2017 <brentonhorne77@gmail.com> skribis:

> No it doesn't, I have this at the moment:
>
>                 (name "root")
>                 (uid 0)
>                 (group "root")
>                 (home-directory "/root")
>                 (shell (file-append zsh "/bin/zsh")))
>
> and I get the error:
>
> guix system: error: failed to load '/etc/config.scm':
> /etc/config.scm:35:9: /etc/config.scm:35:9: Wrong number of arguments to
> #<procedure cons (_ _)>

‘cons’ adds an element to a list, so it takes two arguments:

  (cons account list)

as in:

  (cons (user-account …) %base-user-accounts)

HTH!

Ludo’.

bug#29706: GuixSD: Please add the ability to change shells for root

[BJH2017]

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(thought I had CC'ed the group with my last comment but unfortunately gmail
doesn't do this by default, sorry)

Ya I do have %base-user-accounts in my config file here is what I had for
user accounts in full:

  (users (cons
              (user-account
                (name "root")
                (uid 0)
                (group "root")
                (supplementary-groups '("home-directory"))
                (home-directory "/root")
                (shell (file-append zsh "/bin/zsh")))
               (user-account
                (name "fusion809")
                (comment "Brenton Horne")
                (group "users")
                (supplementary-groups '("wheel" "netdev"
                                        "audio" "video"))
                (home-directory "/home/fusion809")
(shell "/run/current-system/profile/bin/zsh"))
               %base-user-accounts))

guessing the problem here is that I have two user-account fields?


On 20 December 2017 at 00:53, Ludovic Courtès <ludo@gnu.org> wrote:

> Please always keep the list Cc’d.
>
> BJH2017 <brentonhorne77@gmail.com> skribis:
>
> > No it doesn't, I have this at the moment:
> >
> >                 (name "root")
> >                 (uid 0)
> >                 (group "root")
> >                 (home-directory "/root")
> >                 (shell (file-append zsh "/bin/zsh")))
> >
> > and I get the error:
> >
> > guix system: error: failed to load '/etc/config.scm':
> > /etc/config.scm:35:9: /etc/config.scm:35:9: Wrong number of arguments to
> > #<procedure cons (_ _)>
>
> ‘cons’ adds an element to a list, so it takes two arguments:
>
>   (cons account list)
>
> as in:
>
>   (cons (user-account …) %base-user-accounts)
>
> HTH!
>
> Ludo’.
>

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bug#29706: GuixSD: Please add the ability to change shells for root

[Ricardo Wurmus]

Hi,

>   (users (cons
>               (user-account
>                 (name "root")
>                 (uid 0)
>                 (group "root")
>                 (supplementary-groups '("home-directory"))
>                 (home-directory "/root")
>                 (shell (file-append zsh "/bin/zsh")))
>                (user-account
>                 (name "fusion809")
>                 (comment "Brenton Horne")
>                 (group "users")
>                 (supplementary-groups '("wheel" "netdev"
>                                         "audio" "video"))
>                 (home-directory "/home/fusion809")
> (shell "/run/current-system/profile/bin/zsh"))
>                %base-user-accounts))
>
> guessing the problem here is that I have two user-account fields?

Yes, “cons” takes a single item (its first argument) and prepends it to a
list (its second argument).  You can use “cons*” here, which prepends
more than one thing to a list.

-- 
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

bug#29706: GuixSD: Please add the ability to change shells for root

[Alex Sassmannshausen]

Hi,

BJH2017 writes:

> (thought I had CC'ed the group with my last comment but unfortunately gmail doesn't do this by default, sorry)
>
> Ya I do have %base-user-accounts in my config file here is what I had for user accounts in full:
>
> (users (cons 
> (user-account
> (name "root")
> (uid 0)
> (group "root")
> (supplementary-groups '("home-directory"))
> (home-directory "/root")
> (shell (file-append zsh "/bin/zsh")))
> (user-account
> (name "fusion809")
> (comment "Brenton Horne")
> (group "users")
> (supplementary-groups '("wheel" "netdev"
> "audio" "video"))
> (home-directory "/home/fusion809")
> (shell "/run/current-system/profile/bin/zsh"))
> %base-user-accounts))
>
> guessing the problem here is that I have two user-account fields?

That's correct.  Either use:

(cons (user-account ...)
      (cons (user-account ...)
            %base-user-accounts))

Or

(cons* (user-account ...) (user-account ...) %base-user-accounts)

HTH,

Alex

> On 20 December 2017 at 00:53, Ludovic Courtès <ludo@gnu.org> wrote:
>
>  Please always keep the list Cc’d.
>
>  BJH2017 <brentonhorne77@gmail.com> skribis:
>
>  > No it doesn't, I have this at the moment:
>  >
>  > (name "root")
>  > (uid 0)
>  > (group "root")
>  > (home-directory "/root")
>  > (shell (file-append zsh "/bin/zsh")))
>  >
>  > and I get the error:
>  >
>  > guix system: error: failed to load '/etc/config.scm':
>  > /etc/config.scm:35:9: /etc/config.scm:35:9: Wrong number of arguments to
>  > #<procedure cons (_ _)>
>
>  ‘cons’ adds an element to a list, so it takes two arguments:
>
>  (cons account list)
>
>  as in:
>
>  (cons (user-account …) %base-user-accounts)
>
>  HTH!
>
>  Ludo’.

bug#29706: GuixSD: Please add the ability to change shells for root

[Leo Famulari]

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On Wed, Dec 20, 2017 at 01:02:02AM +1000, BJH2017 wrote:
> (thought I had CC'ed the group with my last comment but unfortunately gmail
> doesn't do this by default, sorry)
> 
> Ya I do have %base-user-accounts in my config file here is what I had for
> user accounts in full:
> 
>   (users (cons
>               (user-account
>                 (name "root")
>                 (uid 0)
>                 (group "root")
>                 (supplementary-groups '("home-directory"))
>                 (home-directory "/root")
>                 (shell (file-append zsh "/bin/zsh")))
>                (user-account
>                 (name "fusion809")
>                 (comment "Brenton Horne")
>                 (group "users")
>                 (supplementary-groups '("wheel" "netdev"
>                                         "audio" "video"))
>                 (home-directory "/home/fusion809")
> (shell "/run/current-system/profile/bin/zsh"))
>                %base-user-accounts))
> 
> guessing the problem here is that I have two user-account fields?

Right, if you are adding more than one element to %base-user-accounts,
you'll need to use cons* instead of cons.

(users (cons* (user-account
                (name "root")
		...)
              (user-account
                (name "fusion809")
                ...)
              %base-user-accounts))

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bug#29706: GuixSD: Please add the ability to change shells for root

[Ludovic Courtès]

Hello,

BJH2017 <brentonhorne77@gmail.com> skribis:

> Ya I do have %base-user-accounts in my config file here is what I had for
> user accounts in full:
>
>   (users (cons
>               (user-account
>                 (name "root")
>                 (uid 0)
>                 (group "root")
>                 (supplementary-groups '("home-directory"))
>                 (home-directory "/root")
>                 (shell (file-append zsh "/bin/zsh")))
>                (user-account
>                 (name "fusion809")
>                 (comment "Brenton Horne")
>                 (group "users")
>                 (supplementary-groups '("wheel" "netdev"
>                                         "audio" "video"))
>                 (home-directory "/home/fusion809")
> (shell "/run/current-system/profile/bin/zsh"))
>                %base-user-accounts))

Here ‘cons’ is given three arguments.  You should use ‘cons*’ instead.
To do that you’ll also need to add this line to the top of your file:

  (use-modules (srfi srfi-1))  ;for 'cons*'

HTH,
Ludo’.