From 130079ae27b47228516dc2934bcdecca5dbedf12 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Wed, 30 Nov 2016 00:05:22 +0100 Subject: tests: Create a copy-on-write image instead of copying eagerly. * gnu/tests/install.scm (qemu-command/writable-image): Invoke 'qemu-img -o backing_file' instead of calling 'copy-file'. --- gnu/tests/install.scm | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'gnu/tests/install.scm') diff --git a/gnu/tests/install.scm b/gnu/tests/install.scm index ecf1ac1923..4779b80e94 100644 --- a/gnu/tests/install.scm +++ b/gnu/tests/install.scm @@ -199,8 +199,15 @@ IMAGE, a disk image. The QEMU VM is has access to MEMORY-SIZE MiB of RAM." (mlet %store-monad ((system (current-system))) (return #~(let ((image #$image)) ;; First we need a writable copy of the image. - (format #t "copying image '~a'...~%" image) - (copy-file image "disk.img") + (format #t "creating writable image from '~a'...~%" image) + (unless (zero? (system* #+(file-append qemu-minimal + "/bin/qemu-img") + "create" "-f" "qcow2" + "-o" + (string-append "backing_file=" image) + "disk.img")) + (error "failed to create writable QEMU image" image)) + (chmod "disk.img" #o644) `(,(string-append #$qemu-minimal "/bin/" #$(qemu-command system)) -- cgit 1.4.1