From b0afa3c5f6fc3dc84779be64d03cdff4ab295a33 Mon Sep 17 00:00:00 2001 From: Maxim Cournoyer Date: Wed, 11 Nov 2020 14:48:54 -0500 Subject: [PATCH] bootloader: grub: Skip install-grub-efi when producing a disk image. Fixes . Every bootloader should try their best to install themselves using only the MOUNT-POINT and otherwise do nothing. This requirement comes from the necessity to call INSTALL-GRUB when installing the (non-EFI) GRUB bootloader, which needs to populate the root file system with extra modules that cannot be fit in the core.img file, limited in size to 491520 bytes (by the i386-pc format required for legacy BIOS compatibility). As introducing bootloader knowledge at the level of the image code is undesirable, every bootloader should be adapted to support this fall-back for their installation procedure (TODO). * gnu/bootloader/grub.scm (install-grub-efi)[efi-dir]: Skip when the EFI-DIR argument is set to #f. --- gnu/bootloader/grub.scm | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm index 0899fab61f..af7b7561ff 100644 --- a/gnu/bootloader/grub.scm +++ b/gnu/bootloader/grub.scm @@ -573,21 +573,24 @@ fi~%")))) (define install-grub-efi #~(lambda (bootloader efi-dir mount-point) - ;; Install GRUB onto the EFI partition mounted at EFI-DIR, for the - ;; system whose root is mounted at MOUNT-POINT. - (let ((grub-install (string-append bootloader "/sbin/grub-install")) - (install-dir (string-append mount-point "/boot")) - ;; When installing Guix, it's common to mount EFI-DIR below - ;; MOUNT-POINT rather than /boot/efi on the live image. - (target-esp (if (file-exists? (string-append mount-point efi-dir)) - (string-append mount-point efi-dir) - efi-dir))) - ;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or - ;; root partition. - (setenv "GRUB_ENABLE_CRYPTODISK" "y") - (invoke/quiet grub-install "--boot-directory" install-dir - "--bootloader-id=Guix" - "--efi-directory" target-esp)))) + ;; There is nothing useful to do when called in the context of a disk + ;; image generation. + (when efi-dir + ;; Install GRUB onto the EFI partition mounted at EFI-DIR, for the + ;; system whose root is mounted at MOUNT-POINT. + (let ((grub-install (string-append bootloader "/sbin/grub-install")) + (install-dir (string-append mount-point "/boot")) + ;; When installing Guix, it's common to mount EFI-DIR below + ;; MOUNT-POINT rather than /boot/efi on the live image. + (target-esp (if (file-exists? (string-append mount-point efi-dir)) + (string-append mount-point efi-dir) + efi-dir))) + ;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or + ;; root partition. + (setenv "GRUB_ENABLE_CRYPTODISK" "y") + (invoke/quiet grub-install "--boot-directory" install-dir + "--bootloader-id=Guix" + "--efi-directory" target-esp))))) (define (install-grub-efi-netboot subdir) "Define a grub-efi-netboot bootloader installer for installation in SUBDIR,