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Re: networkmanager hostname woes

From: Thomas Danckaert
Subject: Re: networkmanager hostname woes
Date: Sat, 16 Sep 2017 14:03:20 +0200 (CEST)

From: address@hidden (Ludovic Courtès)
Subject: Re: networkmanager hostname woes
Date: Fri, 15 Sep 2017 22:34:44 +0200

Thomas Danckaert <address@hidden> skribis:

From: address@hidden (Ludovic Courtès)
Subject: Re: networkmanager hostname woes
Date: Thu, 14 Sep 2017 10:17:08 +0200

I don’t understand the logic in there, but a quick fix would be to have
‘network-manager-service-type’ create /etc/hostname.

What do people think?

I agree.  What is the best way to do that?

- make network-manager-service extend etc-service? I think in this
   case we'd need to pass the host-name to
network-manager-service-type somehow? It feels strange to make the
   system config's host-name a configuration parameter of
   network-manager-service-type just for this reason.

- Create /etc/hosts in network-manager activation, using the result
   of ‘hostname’ at that point?

 - ...?

Hmm, good points. Maybe just create /etc/hostname unconditionally from
‘essential-services’?  It can’t hurt, right?

I don't think so, only for people committed to extreme minimalism. The attached patch fixes the issue on my system. Will it do?

>From 76a461ff1540807d8beb98c298a8ea0165a6aaa4 Mon Sep 17 00:00:00 2001
From: Thomas Danckaert <address@hidden>
Date: Sat, 16 Sep 2017 13:54:40 +0200
Subject: [PATCH] system: Create "/etc/hostname".

* gnu/system.scm (operating-system-etc-service): Add a plain-file with the
 gnu/system.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gnu/system.scm b/gnu/system.scm
index bb7e8531e..2ad4b3054 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -642,6 +642,7 @@ fi\n")))
        ("bashrc" ,#~#$bashrc)
        ("hosts" ,#~#$(or (operating-system-hosts-file os)
                          (default-/etc/hosts (operating-system-host-name os))))
+       ("hostname" ,(plain-file "hostname" (operating-system-host-name os)))
        ("localtime" ,(file-append tzdata "/share/zoneinfo/"
                                   (operating-system-timezone os)))
        ("sudoers" ,(operating-system-sudoers-file os))))))

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