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-rw-r--r--gnu/bootloader/extlinux.scm20
1 files changed, 9 insertions, 11 deletions
diff --git a/gnu/bootloader/extlinux.scm b/gnu/bootloader/extlinux.scm
index 0db5598fc9..9b6e2c7f2a 100644
--- a/gnu/bootloader/extlinux.scm
+++ b/gnu/bootloader/extlinux.scm
@@ -85,14 +85,6 @@ TIMEOUT ~a~%"
;;; Install procedures.
;;;
-(define dd
- #~(lambda (bs count if of)
- (zero? (system* "dd"
- (string-append "bs=" (number->string bs))
- (string-append "count=" (number->string count))
- (string-append "if=" if)
- (string-append "of=" of)))))
-
(define (install-extlinux mbr)
#~(lambda (bootloader device mount-point)
(let ((extlinux (string-append bootloader "/sbin/extlinux"))
@@ -101,9 +93,15 @@ TIMEOUT ~a~%"
(for-each (lambda (file)
(install-file file install-dir))
(find-files syslinux-dir "\\.c32$"))
-
- (unless (and (zero? (system* extlinux "--install" install-dir))
- (#$dd 440 1 (string-append syslinux-dir "/" #$mbr) device))
+ (unless
+ (and (zero? (system* extlinux "--install" install-dir))
+ (call-with-input-file (string-append syslinux-dir "/" #$mbr)
+ (lambda (input)
+ (let ((bv (get-bytevector-n input 440)))
+ (call-with-output-file device
+ (lambda (output)
+ (put-bytevector output bv))
+ #:binary #t)))))
(error "failed to install SYSLINUX")))))
(define install-extlinux-mbr