Subject: Re: bug#40649: website download bug

From: Leo Famulari <[email-masked]>
Date: Thu, 28 May 2020 22:51:09 -0400

On Wed, Apr 15, 2020 at 10:36:11PM +0200, mray wrote:
> Hi there,
> 
> the QEMU Image download links toa file that misses the "*.qcow2" filetype.
> 
> That way Gnome Boxes is not able to start the image. I suggest renaming
> all respective files.

We could use something like the attached patch (untested!), but I'll
wait for review from a maintainer since they would have to deal with any
breakage.
From a9bc503689e7d524265fd23811627323d8059ece Mon Sep 17 00:00:00 2001
From: Leo Famulari <[email-masked]>
Date: Thu, 28 May 2020 22:43:16 -0400
Subject: [PATCH] maint: Add a file extension to the VM image.

This allows the file to be opened easily in GNOME Boxes.

Fixes <https://bugs.gnu.org/40649>.

* Makefile.am (release): Add ".qcow2" to the name of the VM image.
* doc/guix.texi (Running Guix in a VM): Adjust accordingly.
---
 Makefile.am   | 6 +++---
 doc/guix.texi | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 5b64386b53..f1031863de 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -836,9 +836,9 @@ release: dist-with-updated-version
 	    echo "failed to produced Guix VM image for $$system" >&2 ;			\
 	    exit 1 ;									\
 	  fi ;										\
-	  xz < "$$image" > "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.xz.tmp" ;	\
-	  mv "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.xz.tmp"			\
-	     "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.xz" ;			\
+	  xz < "$$image" > "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.qcow2.xz.tmp" ;	\
+	  mv "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.qcow2.xz.tmp"		\
+	     "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.qcow2.xz" ;		\
 	done
 	@echo
 	@echo "Congratulations!  All the release files are now in $(releasedir)."
diff --git a/doc/guix.texi b/doc/guix.texi
index 5b9942d420..0adadf69fa 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -27747,7 +27747,7 @@ Whether or not the droplet should be created with IPv6 networking.
 @cindex virtual machine
 To run Guix in a virtual machine (VM), one can use the pre-built Guix VM image
 distributed at
-@url{@value{BASE-URL}/guix-system-vm-image-@value{VERSION}.x86_64-linux.xz}.
+@url{@value{BASE-URL}/guix-system-vm-image-@value{VERSION}.x86_64-linux.qcow2.xz}.
 This image is a compressed image in QCOW format.  You will first need to
 decompress with @command{xz -d}, and then you can pass it to an emulator such
 as QEMU (see below for details).
-- 
2.26.2