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-rw-r--r--gnu/build/install.scm9
1 files changed, 5 insertions, 4 deletions
diff --git a/gnu/build/install.scm b/gnu/build/install.scm
index a472259a4a..111b79ee59 100644
--- a/gnu/build/install.scm
+++ b/gnu/build/install.scm
@@ -36,14 +36,15 @@
(define* (install-grub grub.cfg device mount-point)
"Install GRUB with GRUB.CFG on DEVICE, which is assumed to be mounted on
-MOUNT-POINT."
+MOUNT-POINT. Note that the caller must make sure that GRUB.CFG is registered
+as a GC root."
(let* ((target (string-append mount-point "/boot/grub/grub.cfg"))
(pivot (string-append target ".new")))
(mkdir-p (dirname target))
- ;; Copy GRUB.CFG instead of just symlinking it since it's not a GC root.
- ;; Do that atomically.
- (copy-file grub.cfg pivot)
+ ;; Symlink GRUB.CFG, under the assumption that it has been registered as a
+ ;; GC root somewhere. Do that atomically.
+ (symlink grub.cfg pivot)
(rename-file pivot target)
(unless (zero? (system* "grub-install" "--no-floppy"