diff options
| -rw-r--r-- | guix/build/install.scm | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/guix/build/install.scm b/guix/build/install.scm index 564735a7f6..f61c16f13a 100644 --- a/guix/build/install.scm +++ b/guix/build/install.scm @@ -38,11 +38,18 @@ (define* (install-grub grub.cfg device mount-point) "Install GRUB with GRUB.CFG on DEVICE, which is assumed to be mounted on MOUNT-POINT. Return #t on success." - (mkdir-p (string-append mount-point "/boot/grub")) - (symlink grub.cfg (string-append mount-point "/boot/grub/grub.cfg")) - (zero? (system* "grub-install" "--no-floppy" - "--boot-directory" (string-append mount-point "/boot") - device))) + (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) + (rename-file pivot target) + + (zero? (system* "grub-install" "--no-floppy" + "--boot-directory" (string-append mount-point "/boot") + device)))) (define (evaluate-populate-directive directive target) "Evaluate DIRECTIVE, an sexp describing a file or directory to create under |