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authorLudovic Courtès <ludo@gnu.org>2014-06-25 22:54:52 +0200
committerLudovic Courtès <ludo@gnu.org>2014-06-25 23:53:27 +0200
commitfe6e3fe2a56aede1d5e04bab3281515c8df86ff8 (patch)
tree352cdbc887b981e99aedd9a025e2823ae34f4d34 /gnu/system.scm
parent64e40dbb692d537e67d1dccd727dd5c36e39a10e (diff)
downloadguix-fe6e3fe2a56aede1d5e04bab3281515c8df86ff8.tar.gz
system: Support the addition of old entries in the GRUB menu.
* gnu/system.scm (operating-system-grub.cfg): Add 'old-entries'
  parameter.  Pass it to 'grub-configuration-file'.
* gnu/system/grub.scm (grub-configuration-file): Add #:old-entries
  parameter.  Honor it.
Diffstat (limited to 'gnu/system.scm')
-rw-r--r--gnu/system.scm8
1 files changed, 5 insertions, 3 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index 12d9f5fe02..0b62350c63 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -493,8 +493,9 @@ we're running in the final root."
                  (package-version kernel)
                  " (technology preview)"))
 
-(define (operating-system-grub.cfg os)
-  "Return the GRUB configuration file for OS."
+(define* (operating-system-grub.cfg os #:optional (old-entries '()))
+  "Return the GRUB configuration file for OS.  Use OLD-ENTRIES to populate the
+\"old entries\" menu."
   (mlet* %store-monad
       ((system      (operating-system-derivation os))
        (root-fs ->  (operating-system-root-file-system os))
@@ -509,7 +510,8 @@ we're running in the final root."
                                   #~(string-append "--load=" #$system
                                                    "/boot")))
                            (initrd #~(string-append #$system "/initrd"))))))
-    (grub-configuration-file (operating-system-bootloader os) entries)))
+    (grub-configuration-file (operating-system-bootloader os) entries
+                             #:old-entries old-entries)))
 
 (define (operating-system-parameters-file os)
   "Return a file that describes the boot parameters of OS.  The primary use of