From 8cca59ee1234252f1c3fbd594fb552093be968d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Wed, 16 Jan 2019 23:08:20 +0100
Subject: [PATCH] installer: Fix manual partitioning.

* gnu/installer/newt/partition.scm (run-partioning-page): When METHOD is
'manual, use 'filter-map' on DEVICES, not 'map', since 'disk-new' can
return #f.
---
 gnu/installer/newt/partition.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/installer/newt/partition.scm b/gnu/installer/newt/partition.scm
index c22e1c0290..d4c91edc66 100644
--- a/gnu/installer/newt/partition.scm
+++ b/gnu/installer/newt/partition.scm
@@ -745,7 +745,7 @@ (define (run-page devices)
            (run-disk-page (list disk) user-partitions
                           #:guided? #t)))
        ((eq? method 'manual)
-         (let* ((disks (map disk-new devices))
+         (let* ((disks (filter-map disk-new devices))
                 (user-partitions (append-map
                                   create-special-user-partitions
                                   (map disk-partitions disks)))