diff options
Diffstat (limited to 'gnu/build/vm.scm')
| -rw-r--r-- | gnu/build/vm.scm | 175 |
1 files changed, 4 insertions, 171 deletions
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm index d2bf7418fd..433b5a7e8d 100644 --- a/gnu/build/vm.scm +++ b/gnu/build/vm.scm @@ -27,6 +27,7 @@ #:use-module (guix build store-copy) #:use-module (guix build syscalls) #:use-module (guix store database) + #:use-module (gnu build bootloader) #:use-module (gnu build linux-boot) #:use-module (gnu build install) #:use-module (gnu system uuid) @@ -57,8 +58,7 @@ estimated-partition-size root-partition-initializer initialize-partition-table - initialize-hard-disk - make-iso9660-image)) + initialize-hard-disk)) ;;; Commentary: ;;; @@ -439,159 +439,6 @@ system that is passed to 'populate-root-file-system'." (mkdir-p directory) (symlink bootcfg (string-append directory "/bootcfg")))) -(define (install-efi grub esp config-file) - "Write a self-contained GRUB EFI loader to the mounted ESP using CONFIG-FILE." - (let* ((system %host-type) - ;; Hard code the output location to a well-known path recognized by - ;; compliant firmware. See "3.5.1.1 Removable Media Boot Behaviour": - ;; http://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf - (grub-mkstandalone (string-append grub "/bin/grub-mkstandalone")) - (efi-directory (string-append esp "/EFI/BOOT")) - ;; Map grub target names to boot file names. - (efi-targets (cond ((string-prefix? "x86_64" system) - '("x86_64-efi" . "BOOTX64.EFI")) - ((string-prefix? "i686" system) - '("i386-efi" . "BOOTIA32.EFI")) - ((string-prefix? "armhf" system) - '("arm-efi" . "BOOTARM.EFI")) - ((string-prefix? "aarch64" system) - '("arm64-efi" . "BOOTAA64.EFI"))))) - ;; grub-mkstandalone requires a TMPDIR to prepare the firmware image. - (setenv "TMPDIR" esp) - - (mkdir-p efi-directory) - (invoke grub-mkstandalone "-O" (car efi-targets) - "-o" (string-append efi-directory "/" - (cdr efi-targets)) - ;; Graft the configuration file onto the image. - (string-append "boot/grub/grub.cfg=" config-file)))) - -(define* (make-iso9660-image xorriso grub-mkrescue-environment - grub config-file os-drv target - #:key (volume-id "Guix_image") (volume-uuid #f) - register-closures? (closures '())) - "Given a GRUB package, creates an iso image as TARGET, using CONFIG-FILE as -GRUB configuration and OS-DRV as the stuff in it." - (define grub-mkrescue - (string-append grub "/bin/grub-mkrescue")) - - (define grub-mkrescue-sed.sh - (string-append xorriso "/bin/grub-mkrescue-sed.sh")) - - (define target-store - (string-append "/tmp/root" (%store-directory))) - - (define items - ;; The store items to add to the image. - (delete-duplicates - (append-map (lambda (closure) - (map store-info-item - (call-with-input-file (string-append "/xchg/" closure) - read-reference-graph))) - closures))) - - (populate-root-file-system os-drv "/tmp/root") - (mount (%store-directory) target-store "" MS_BIND) - - (when register-closures? - (display "registering closures...\n") - (for-each (lambda (closure) - (register-closure - "/tmp/root" - (string-append "/xchg/" closure) - - ;; TARGET-STORE is a read-only bind-mount so we shouldn't try - ;; to modify it. - #:deduplicate? #f - #:reset-timestamps? #f)) - closures) - (register-bootcfg-root "/tmp/root" config-file)) - - ;; 'grub-mkrescue' calls out to mtools programs to create 'efi.img', a FAT - ;; file system image, and mtools honors SOURCE_DATE_EPOCH for the mtime of - ;; those files. The epoch for FAT is Jan. 1st 1980, not 1970, so choose - ;; that. - (setenv "SOURCE_DATE_EPOCH" - (number->string - (time-second - (date->time-utc (make-date 0 0 0 0 1 1 1980 0))))) - - ;; Our patched 'grub-mkrescue' honors this environment variable and passes - ;; it to 'mformat', which makes it the serial number of 'efi.img'. This - ;; allows for deterministic builds. - (setenv "GRUB_FAT_SERIAL_NUMBER" - (number->string (if volume-uuid - - ;; On 32-bit systems the 2nd argument must be - ;; lower than 2^32. - (string-hash (iso9660-uuid->string volume-uuid) - (- (expt 2 32) 1)) - - #x77777777) - 16)) - - (setenv "MKRESCUE_SED_MODE" "original") - (setenv "MKRESCUE_SED_XORRISO" (string-append xorriso - "/bin/xorriso")) - (setenv "MKRESCUE_SED_IN_EFI_NO_PT" "yes") - (for-each (match-lambda - ((name . value) (setenv name value))) - grub-mkrescue-environment) - - (let ((pipe - (apply open-pipe* OPEN_WRITE - grub-mkrescue - (string-append "--xorriso=" grub-mkrescue-sed.sh) - "-o" target - (string-append "boot/grub/grub.cfg=" config-file) - "etc=/tmp/root/etc" - "var=/tmp/root/var" - "run=/tmp/root/run" - ;; /mnt is used as part of the installation - ;; process, as the mount point for the target - ;; file system, so create it. - "mnt=/tmp/root/mnt" - "-path-list" "-" - "--" - - ;; Set all timestamps to 1. - "-volume_date" "all_file_dates" "=1" - - ;; ‘zisofs’ compression reduces the total image size by ~60%. - "-zisofs" "level=9:block_size=128k" ; highest compression - ;; It's transparent to our Linux-Libre kernel but not to GRUB. - ;; Don't compress the kernel, initrd, and other files read by - ;; grub.cfg, as well as common already-compressed file names. - "-find" "/" "-type" "f" - ;; XXX Even after "--" above, and despite documentation claiming - ;; otherwise, "-or" is stolen by grub-mkrescue which then chokes - ;; on it (as ‘-o …’) and dies. Don't use "-or". - "-not" "-wholename" "/boot/*" - "-not" "-wholename" "/System/*" - "-not" "-name" "unicode.pf2" - "-not" "-name" "bzImage" - "-not" "-name" "*.gz" ; initrd & all man pages - "-not" "-name" "*.png" ; includes grub-image.png - "-exec" "set_filter" "--zisofs" - "--" - - "-volid" (string-upcase volume-id) - (if volume-uuid - `("-volume_date" "uuid" - ,(string-filter (lambda (value) - (not (char=? #\- value))) - (iso9660-uuid->string - volume-uuid))) - `())))) - ;; Pass lines like 'gnu/store/…-x=/gnu/store/…-x' corresponding to the - ;; '-path-list -' option. - (for-each (lambda (item) - (format pipe "~a=~a~%" - (string-drop item 1) item)) - items) - (unless (zero? (close-pipe pipe)) - (error "oh, my! grub-mkrescue failed" grub-mkrescue)))) - (define* (initialize-hard-disk device #:key bootloader-package @@ -633,30 +480,16 @@ passing it a directory name where it is mounted." (when esp ;; Mount the ESP somewhere and install GRUB UEFI image. - (let ((mount-point (string-append target "/boot/efi")) - (grub-config (string-append target "/tmp/grub-standalone.cfg"))) + (let ((mount-point (string-append target "/boot/efi"))) (display "mounting EFI system partition...\n") (mkdir-p mount-point) (mount (partition-device esp) mount-point (partition-file-system esp)) - ;; Create a tiny configuration file telling the embedded grub - ;; where to load the real thing. - ;; XXX This is quite fragile, and can prevent the image from booting - ;; when there's more than one volume with this label present. - ;; Reproducible almost-UUIDs could reduce the risk (not eliminate it). - (call-with-output-file grub-config - (lambda (port) - (format port - "insmod part_msdos~@ - search --set=root --label Guix_image~@ - configfile /boot/grub/grub.cfg~%"))) - (display "creating EFI firmware image...") - (install-efi grub-efi mount-point grub-config) + (install-efi-loader grub-efi mount-point) (display "done.\n") - (delete-file grub-config) (umount mount-point))) ;; Register BOOTCFG as a GC root. |