installer: Use UUIDs in the 'swap-devices' field.

Note: This change requires an updated 'guix' package that contains
Linux-swap support in (gnu build file-systems).

* gnu/installer/parted.scm (user-partitions->configuration): Use UUIDs
in the 'swap-devices' field.
* gnu/installer/newt/final.scm (run-final-page)[wait-for-clients]: New
procedure.   Use it.
* gnu/installer/tests.scm (choose-partitioning): Wait for
'starting-final-step' message and move configuration file dialog
handling to...
(conclude-installation): ... here.  Send over PORT the reply
corresponding to 'starting-final-step'.
* gnu/tests/install.scm (gui-test-program): When ENCRYPTED? is false,
invoke 'swaplabel' in the marionette.
(installation-target-os-for-gui-tests): When ENCRYPTED? is false, except
a fixed UUID.

1 files changed, 6 insertions, 1 deletions

diff --git a/gnu/installer/parted.scm b/gnu/installer/parted.scm
index fffd5abf3b0..d799ee0e735 100644
--- a/gnu/installer/parted.scm
+++ b/gnu/installer/parted.scm
@@ -1327,7 +1327,12 @@ USER-PARTITIONS, or return nothing."
       ,@(initrd-configuration user-partitions)
       ,@(if (null? swap-devices)
             '()
-            `((swap-devices (list ,@swap-devices))))
+            (let* ((uuids (map (lambda (file)
+                                 (uuid->string (read-partition-uuid file)))
+                               swap-devices)))
+              `((swap-devices (list ,@(map (lambda (uuid)
+                                             `(uuid ,uuid))
+                                           uuids))))))
       ,@(if (null? encrypted-partitions)
             '()
             `((mapped-devices