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-rw-r--r--gnu/system/image.scm10
1 files changed, 9 insertions, 1 deletions
diff --git a/gnu/system/image.scm b/gnu/system/image.scm
index 53f68c097d..02c026b88c 100644
--- a/gnu/system/image.scm
+++ b/gnu/system/image.scm
@@ -65,9 +65,17 @@
;;; Images definitions.
;;;
+;; This is the offset before the first partition. GRUB will install itself in
+;; this post-MBR gap.
+(define root-offset (* 512 2048))
+
+;; Generic root partition label.
+(define root-label "Guix_image")
+
(define esp-partition
(partition
(size (* 40 (expt 2 20)))
+ (offset root-offset)
(label "GNU-ESP") ;cosmetic only
;; Use "vfat" here since this property is used when mounting. The actual
;; FAT-ness is based on file system size (16 in this case).
@@ -78,7 +86,7 @@
(define root-partition
(partition
(size 'guess)
- (label "Guix_image")
+ (label root-label)
(file-system "ext4")
(flags '(boot))
(initializer (gexp initialize-root-partition))))