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03/03: installer: parted: Use read-luks-partition-uuid instead of find-p


From: guix-commits
Subject: 03/03: installer: parted: Use read-luks-partition-uuid instead of find-partition-by-luks-uuid.
Date: Sat, 8 Dec 2018 09:39:08 -0500 (EST)

mothacehe pushed a commit to branch wip-newt-installer
in repository guix.

commit 7ae7551f82769272d67eceb0b85b2c14d3771a1b
Author: Mathieu Othacehe <address@hidden>
Date:   Sat Dec 8 23:36:07 2018 +0900

    installer: parted: Use read-luks-partition-uuid instead of
    find-partition-by-luks-uuid.
    
    * gnu/installer/parted.scm (user-partition->mapped-device): Replace
    read-luks-partition-uuid by find-partition-by-luks-uuid,
    (user-partition->file-system): only compute uuid if the partition
    is not encrypted.
---
 gnu/installer/parted.scm | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/gnu/installer/parted.scm b/gnu/installer/parted.scm
index c56da60..c7be240 100644
--- a/gnu/installer/parted.scm
+++ b/gnu/installer/parted.scm
@@ -23,7 +23,7 @@
   #:use-module (gnu system uuid)
   #:use-module ((gnu build file-systems)
                 #:select (read-partition-uuid
-                          find-partition-by-luks-uuid))
+                          read-luks-partition-uuid))
   #:use-module (guix build syscalls)
   #:use-module (guix build utils)
   #:use-module (guix records)
@@ -1203,8 +1203,9 @@ the FS-TYPE field set to 'swap, return the empty list if 
none found."
          (mount-type (user-fs-type->mount-type fs-type))
          (path (user-partition-path user-partition))
          (upper-path (user-partition-upper-path user-partition))
-         (uuid (uuid->string (read-partition-uuid path)
-                             fs-type)))
+         ;; Only compute uuid if partition is not encrypted.
+         (uuid (or crypt-label
+                   (uuid->string (read-partition-uuid path) fs-type))))
     `(file-system
        (mount-point ,mount-point)
        (device ,@(if crypt-label
@@ -1232,7 +1233,9 @@ from (gnu system mapped-devices) and return it."
   (let ((label (user-partition-crypt-label user-partition))
         (path (user-partition-path user-partition)))
     `(mapped-device
-      (source (uuid ,(uuid->string (read-partition-uuid path))))
+      (source (uuid ,(uuid->string
+                      (read-luks-partition-uuid path)
+                      'luks)))
       (target ,label)
       (type luks-device-mapping))))
 



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