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build: Do not compress the (already compressed) VM qcow2 images.

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The qcow2 format supports compression, and the qcow2 type supported by 'guix
system image' produces compressed qcow2 images.

* Makefile.am (release): Do not re-compress the qcow2 VM images with xz.
* doc/guix.texi (Running Guix in a VM): Adjust VM image URL.
This commit is contained in:
Maxim Cournoyer 2021-05-05 15:18:05 -04:00
parent 6e71e71952
commit b1b41a23f4
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GPG key ID: 1260E46482E63562
2 changed files with 2 additions and 4 deletions
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4
Makefile.am
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@ -900,9 +900,7 @@ release: dist-with-updated-version all
echo "failed to produced Guix VM image for $$system" >&2 ; \
exit 1 ; \
fi ; \
xz < "$$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).$$system.qcow2.xz" ; \
cp "$$image" "$(releasedir)/$(GUIX_SYSTEM_VM_IMAGE_BASE).$$system.qcow2"; \
done
@echo
@echo "Congratulations! All the release files are now in $(releasedir)."

2
doc/guix.texi
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@ -33491,7 +33491,7 @@ 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.qcow2.xz}.
@url{@value{BASE-URL}/guix-system-vm-image-@value{VERSION}.x86_64-linux.qcow2}.
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).