diff options
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/build/install.scm | 9 | ||||
| -rw-r--r-- | gnu/build/vm.scm | 16 |
2 files changed, 21 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" diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm index 03db1cd5f9..1762582343 100644 --- a/gnu/build/vm.scm +++ b/gnu/build/vm.scm @@ -178,6 +178,18 @@ volume name." (display "populating...\n") (populate-root-file-system system-directory target-directory)) +(define (register-grub.cfg-root target) + "On file system TARGET, make '/boot/grub/grub.cfg' an indirect GC root." + (define hash + ;; XXX: Believe it or not, this is that nix-base32-encoded SHA1 of the + ;; string "/boot/grub/grub.cfg". We need it here, but gcrypt isn't + ;; available (a random hash would do as well, though.) + "kv0yq1d48kavqfhjfzvc4lcyazx2mqhv") + + (let ((directory (string-append target "/var/guix/gcroots/auto"))) + (mkdir-p directory) + (symlink "/boot/grub/grub.cfg" (string-append directory "/" hash)))) + (define* (initialize-hard-disk device #:key system-directory @@ -222,6 +234,10 @@ SYSTEM-DIRECTORY is the name of the directory of the 'system' derivation." (install-grub grub.cfg device target-directory) + ;; Register $target/boot/grub/grub.cfg as an indirect root, so that GRUB.CFG + ;; is not reclaimed. + (register-grub.cfg-root target-directory) + ;; 'guix-register' resets timestamps and everything, so no need to do it ;; once more in that case. (unless register-closures? |