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authorMathieu Othacehe <m.othacehe@gmail.com>2020-04-28 14:15:28 +0200
committerMathieu Othacehe <m.othacehe@gmail.com>2020-05-05 16:13:53 +0200
commitf19cf27c2b9ff92e2c0fd931ef7fde39c376adaa (patch)
tree6d4805a1c7496e3e1e7c55084b84bd7ece348805 /gnu/system/vm.scm
parentf8fd1157174fd523d36dcfa756c965a54c30d5ae (diff)
downloadguix-f19cf27c2b9ff92e2c0fd931ef7fde39c376adaa.tar.gz
image: Add a new API.
Raw disk-images and ISO9660 images are created in a Qemu virtual machine. This
is quite fragile, very slow, and almost unusable without KVM.

For all these reasons, add support for host image generation. This implies the
use new image generation mechanisms.

- Raw disk images: images of partitions are created using tools such as mke2fs
  and mkdosfs depending on the partition file-system type. The partition
  images are then assembled into a final image using genimage.

- ISO9660 images: the ISO root directory is populated within the store. GNU
  xorriso is then called on that directory, in the exact same way as this is
  done in (gnu build vm) module.

Those mechanisms are built upon the new (gnu image) module.

* gnu/image.scm: New file.
* gnu/system/image.scm: New file.
* gnu/build/image: New file.
* gnu/local.mk: Add them.
* gnu/system/vm.scm (system-disk-image): Rename to system-disk-image-in-vm.
* gnu/ci.scm (qemu-jobs): Adapt to new API.
* gnu/tests/install.scm (run-install): Ditto.
* guix/scripts/system.scm (system-derivation-for-action): Ditto.
Diffstat (limited to 'gnu/system/vm.scm')
-rw-r--r--gnu/system/vm.scm17
1 files changed, 8 insertions, 9 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 2fdf954883..37840ce355 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -77,7 +77,7 @@
 
             system-qemu-image/shared-store
             system-qemu-image/shared-store-script
-            system-disk-image
+            system-disk-image-in-vm
             system-docker-image
 
             virtual-machine
@@ -604,14 +604,13 @@ system."
 ;;; VM and disk images.
 ;;;
 
-
-(define* (system-disk-image os
-                            #:key
-                            (name "disk-image")
-                            (file-system-type "ext4")
-                            (disk-image-size (* 900 (expt 2 20)))
-                            (volatile? #t)
-                            (substitutable? #t))
+(define* (system-disk-image-in-vm os
+                                  #:key
+                                  (name "disk-image")
+                                  (file-system-type "ext4")
+                                  (disk-image-size (* 900 (expt 2 20)))
+                                  (volatile? #t)
+                                  (substitutable? #t))
   "Return the derivation of a disk image of DISK-IMAGE-SIZE bytes of the
 system described by OS.  Said image can be copied on a USB stick as is.  When
 VOLATILE? is true, the root file system is made volatile; this is useful