* gnu/system/shadow.scm (<user-account>)[inputs]: New field.
(passwd-file): Bind the 'shell' field of each account.
* gnu/system/vm.scm (%demo-operating-system): Remove 'shell' field.
* gnu/system/dmd.scm (guix-build-accounts): Store a monadic value in
'shell'. Add 'inputs' field.
* gnu/system.scm (operating-system-derivation): Remove 'shell' field for
'root' account. Add all the 'user-account-inputs' to EXTRAS.
* gnu/system/shadow.scm (guix-build-accounts): Move to...
* gnu/system/dmd.scm (guix-build-accounts): ... here.
(<service>)[user-accounts, user-groups]: New fields.
(guix-service): New #:build-user-id and #:build-accounts parameters.
Use 'guix-build-accounts' and set the 'user-accounts' and
'user-groups' fields accordingly.
* gnu/system/vm.scm (system-qemu-image): Remove use of
'guix-build-accounts'. Augment ACCOUNTS and GROUPS from what SERVICES
demand.
* gnu/system/vm.scm (etc-directory): Remove 'resolv.conf'.
(system-qemu-image): Use 'static-networking-service' with
#:name-servers. Don't populate the image with /etc/resolv.conf.
* gnu/system/dmd.scm (static-networking-service): Add #:name-servers
parameter. Use it to populate /etc/resolv.conf.
* gnu/system/dmd.scm (mingetty-service): Add 'stop' field.
(nscd-service): Run with '--foreground'. Change 'stop' to use
'make-kill-destructor'.
(syslog-service): Run with '--no-detach'; change 'stop' similarly.
(guix-service): Likewise for 'stop'.
(static-networking-service): Remove 'sleep' call from 'start'. Change
'stop' to return #f when networking was actually stopped.
* gnu/system/dmd.scm (<service>): Add 'documentation' field.
(host-name-service, mingetty-service, nscd-service, syslog-service,
static-networking-service): Provide a 'documentation' value.
(dmd-configuration-file): Use it.
* gnu/system/dmd.scm (static-networking-service)[start]: Sleep before
running 'route', to leave time for the interface to come up.
[stop]: Run "route del -net default".
* gnu/system/shadow.scm (guix-build-accounts): New procedure.
* gnu/system/vm.scm (system-qemu-image): Use it. Add the "guixbuild"
group.
* gnu/system/dmd.scm (guix-service): Add 'builder-group' parameter.
Pass 'guix-daemon' the '--build-users-group' option.
* gnu/system/vm.scm (system-qemu-image): Use
'static-networking-service'. Add /etc/resolv.conf. Add Inetutils to
the profile.
* gnu/system/dmd.scm (static-networking-service): New procedure.
* gnu/system/dmd.scm (host-name-service): New procedure.
(mingetty-service): Require the 'host-name' service.
* gnu/system/vm.scm (system-qemu-image): Add the 'host-name' service.
Set PS1 in /etc/bashrc to something sensible.
Ludovic Courtès