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-rw-r--r--gnu/system.scm22
1 files changed, 16 insertions, 6 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index 5cb09b7880..095f7286f0 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -60,6 +60,7 @@
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
+ #:use-module (rnrs bytevectors)
#:export (operating-system
operating-system?
@@ -733,7 +734,7 @@ listed in OS. The C library expects to find it under
(label label)
;; The device where the kernel and initrd live.
- (device (file-system-device store-fs))
+ (device (grub-device store-fs))
(device-mount-point
(file-system-mount-point store-fs))
@@ -748,6 +749,14 @@ listed in OS. The C library expects to find it under
(grub-configuration-file (operating-system-bootloader os) entries
#:old-entries old-entries)))
+(define (grub-device fs)
+ "Given FS, a <file-system> object, return a value suitable for use as the
+device in a <menu-entry>."
+ (case (file-system-title fs)
+ ((uuid) (file-system-device fs))
+ ((label) (file-system-device fs))
+ (else #f)))
+
(define (operating-system-parameters-file os)
"Return a file that describes the boot parameters of OS. The primary use of
this file is the reconstruction of GRUB menu entries for old configurations."
@@ -766,10 +775,7 @@ this file is the reconstruction of GRUB menu entries for old configurations."
#$(operating-system-kernel-arguments os))
(initrd #$initrd)
(store
- (device #$(case (file-system-title store)
- ((uuid) (file-system-device store))
- ((label) (file-system-device store))
- (else #f)))
+ (device #$(grub-device store))
(mount-point #$(file-system-mount-point store))))
#:set-load-path? #f)))
@@ -831,7 +837,11 @@ this file is the reconstruction of GRUB menu entries for old configurations."
(('store ('device device) _ ...)
device)
(_ ;the old format
- root)))
+ ;; Root might be a device path like "/dev/sda1", which is not a
+ ;; suitable GRUB device identifier.
+ (if (string-prefix? "/" root)
+ #f
+ root))))
(store-mount-point
(match (assq 'store rest)