GNU bug report logs - #28377
[PATCH 00/10] Allow users to specify the UUID of disk images

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Message #26 received at 28377 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: 28377 <at> debbugs.gnu.org
Cc: Danny Milosavljevic <dannym <at> scratchpost.org>,
 Ludovic Courtès <ludo <at> gnu.org>,
 Tobias Geerinckx-Rice <me <at> tobias.gr>
Subject: [PATCH 09/10] vm: Allow users to specify a UUID for the root
 partition.
Date: Thu,  7 Sep 2017 00:17:55 +0200

* gnu/system/vm.scm (qemu-image): Add #:file-system-uuid parameter; pass
it as the 'uuid' field of the root partition.
---
 gnu/system/vm.scm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 1807946cb..73d830bf0 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -240,6 +240,7 @@ INPUTS is a list of inputs (as for packages)."
                      (disk-image-format "qcow2")
                      (file-system-type "ext4")
                      file-system-label
+                     file-system-uuid
                      os-drv
                      bootcfg-drv
                      bootloader
@@ -249,7 +250,10 @@ INPUTS is a list of inputs (as for packages)."
   "Return a bootable, stand-alone QEMU image of type DISK-IMAGE-FORMAT (e.g.,
 'qcow2' or 'raw'), with a root partition of type FILE-SYSTEM-TYPE.
 Optionally, FILE-SYSTEM-LABEL can be specified as the volume name for the root
-partition.  The returned image is a full disk image that runs OS-DERIVATION,
+partition; likewise FILE-SYSTEM-UUID, if true, is the UUID of the root
+partition (a UUID object).
+
+The returned image is a full disk image that runs OS-DERIVATION,
 with a GRUB installation that uses GRUB-CONFIGURATION as its configuration
 file (GRUB-CONFIGURATION must be the name of a file in the VM.)
 
@@ -299,6 +303,8 @@ the image."
                   (partitions (list (partition
                                      (size root-size)
                                      (label #$file-system-label)
+                                     (uuid #$(and=> file-system-uuid
+                                                    uuid-bytevector))
                                      (file-system #$file-system-type)
                                      (flags '(boot))
                                      (initializer initialize))
-- 
2.14.1

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