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04/05: vm: 'expression->derivation-in-linux-vm' takes a #:file-systems p

From: Ludovic Courtès
Subject: 04/05: vm: 'expression->derivation-in-linux-vm' takes a #:file-systems parameter.
Date: Fri, 8 Jun 2018 09:23:47 -0400 (EDT)

civodul pushed a commit to branch master
in repository guix.

commit 50e53c1c678810ef2b6efc47221ffe2d1a3c6cf0
Author: Ludovic Courtès <address@hidden>
Date:   Fri Jun 8 14:51:33 2018 +0200

    vm: 'expression->derivation-in-linux-vm' takes a #:file-systems parameter.
    * gnu/system/vm.scm (expression->derivation-in-linux-vm): Add
     #:file-systems and use it instead of %LINUX-VM-FILE-SYSTEMS.
 gnu/system/vm.scm | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 8cfbda2..4a159d6 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -125,6 +125,8 @@
                                              (env-vars '())
+                                             (file-systems
+                                              %linux-vm-file-systems)
                                              (single-file-output? #f)
                                              (make-disk-image? #f)
@@ -134,8 +136,9 @@
                                              (disk-image-size 'guess))
   "Evaluate EXP in a QEMU virtual machine running LINUX with INITRD (a
 derivation).  The virtual machine runs with MEMORY-SIZE MiB of memory.  In the
-virtual machine, EXP has access to all its inputs from the store; it should
-put its output file(s) in the '/xchg' directory.
+virtual machine, EXP has access to FILE-SYSTEMS, which, by default, includes a
+9p share of the store, the '/xchg' where EXP should put its output file(s),
+and a 9p share of /tmp.
 If SINGLE-FILE-OUTPUT? is true, copy a single file from '/xchg' to OUTPUT.
 Otherwise, copy the contents of /xchg to a new directory OUTPUT.
@@ -155,7 +158,7 @@ made available under the /xchg CIFS share."
        (coreutils -> (canonical-package coreutils))
        (initrd       (if initrd                   ; use the default initrd?
                          (return initrd)
-                         (base-initrd %linux-vm-file-systems
+                         (base-initrd file-systems
                                       #:on-error 'backtrace
                                       #:linux linux
                                       #:linux-modules %base-initrd-modules

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