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-rw-r--r--doc/guix.texi10
-rw-r--r--gnu/system/linux-initrd.scm19
2 files changed, 10 insertions, 19 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index e0251f5ffd..1e8a55e9a5 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3616,16 +3616,16 @@ program to run in that initrd.
 
 @deffn {Monadic Procedure} expression->initrd @var{exp} @
        [#:guile %guile-static-stripped] [#:name "guile-initrd"] @
-       [#:modules '()] [#:to-copy '()] [#:linux #f] @
+       [#:modules '()] [#:linux #f] @
        [#:linux-modules '()]
 Return a derivation that builds a Linux initrd (a gzipped cpio archive)
 containing @var{guile} and that evaluates @var{exp}, a G-expression,
-upon booting.
+upon booting.  All the derivations referenced by @var{exp} are
+automatically copied to the initrd.
 
 @var{linux-modules} is a list of @file{.ko} file names to be copied from
-@var{linux} into the initrd.  @var{to-copy} is a list of additional
-derivations or packages to copy to the initrd.  @var{modules} is a list
-of Guile module names to be embedded in the initrd.
+@var{linux} into the initrd.  @var{modules} is a list of Guile module
+names to be embedded in the initrd.
 @end deffn
 
 @node Invoking guix system
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index c2c8722ebb..03ac24d450 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -54,15 +54,14 @@
                              (name "guile-initrd")
                              (system (%current-system))
                              (modules '())
-                             (to-copy '())
                              (linux #f)
                              (linux-modules '()))
   "Return a derivation that builds a Linux initrd (a gzipped cpio archive)
-containing GUILE and that evaluates EXP, a G-expression, upon booting.
+containing GUILE and that evaluates EXP, a G-expression, upon booting.  All
+the derivations referenced by EXP are automatically copied to the initrd.
 
 LINUX-MODULES is a list of '.ko' file names to be copied from LINUX into the
-initrd.  TO-COPY is a list of additional derivations or packages to copy to
-the initrd.  MODULES is a list of Guile module names to be embedded in the
+initrd.  MODULES is a list of Guile module names to be embedded in the
 initrd."
 
   ;; General Linux overview in `Documentation/early-userspace/README' and
@@ -71,15 +70,8 @@ initrd."
   (mlet* %store-monad ((init       (gexp->script "init" exp
                                                  #:modules modules
                                                  #:guile guile))
-                       (to-copy -> (cons init to-copy))
                        (module-dir (flat-linux-module-directory linux
                                                                 linux-modules)))
-    (define graph-files
-      (unfold-right zero?
-                    number->string
-                    1-
-                    (length to-copy)))
-
     (define builder
       #~(begin
           (use-modules (gnu build linux-initrd))
@@ -88,7 +80,7 @@ initrd."
           (build-initrd (string-append #$output "/initrd")
                         #:guile #$guile
                         #:init #$init
-                        #:references-graphs '#$graph-files
+                        #:references-graphs '("closure")
                         #:linux-module-directory #$module-dir
                         #:cpio (string-append #$cpio "/bin/cpio")
                         #:gzip (string-append #$gzip "/bin/gzip"))))
@@ -97,7 +89,7 @@ initrd."
                      #:modules '((guix build utils)
                                  (guix build store-copy)
                                  (gnu build linux-initrd))
-                     #:references-graphs (zip graph-files to-copy))))
+                     #:references-graphs `(("closure" ,init)))))
 
 (define (flat-linux-module-directory linux modules)
   "Return a flat directory containing the Linux kernel modules listed in
@@ -229,7 +221,6 @@ exception and backtrace!)."
    #:modules '((guix build utils)
                (gnu build linux-boot)
                (gnu build file-systems))
-   #:to-copy helper-packages
    #:linux linux-libre
    #:linux-modules linux-modules))