344 lines
14 KiB
Scheme
344 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
|
||
;;; Copyright © 2016 Christine Lemmer-Webber <cwebber@dustycloud.org>
|
||
;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
|
||
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
|
||
;;; Copyright © 2020, 2022 Tobias Geerinckx-Rice <me@tobias.gr>
|
||
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
|
||
;;; Copyright © 2022 Pavel Shlyak <p.shlyak@pantherx.org>
|
||
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
|
||
;;;
|
||
;;; This file is part of GNU Guix.
|
||
;;;
|
||
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
||
;;; under the terms of the GNU General Public License as published by
|
||
;;; the Free Software Foundation; either version 3 of the License, or (at
|
||
;;; your option) any later version.
|
||
;;;
|
||
;;; GNU Guix is distributed in the hope that it will be useful, but
|
||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;;; GNU General Public License for more details.
|
||
;;;
|
||
;;; You should have received a copy of the GNU General Public License
|
||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
(define-module (gnu build image)
|
||
#:use-module (guix build store-copy)
|
||
#:use-module (guix build syscalls)
|
||
#:use-module (guix build utils)
|
||
#:use-module (guix store database)
|
||
#:use-module (guix utils)
|
||
#:use-module (gnu build bootloader)
|
||
#:use-module (gnu build install)
|
||
#:use-module (gnu build linux-boot)
|
||
#:use-module (gnu image)
|
||
#:use-module (gnu system uuid)
|
||
#:use-module (ice-9 ftw)
|
||
#:use-module (ice-9 match)
|
||
#:use-module (srfi srfi-19)
|
||
#:use-module (srfi srfi-34)
|
||
#:use-module (srfi srfi-35)
|
||
#:export (make-partition-image
|
||
convert-disk-image
|
||
genimage
|
||
initialize-efi-partition
|
||
initialize-efi32-partition
|
||
initialize-root-partition
|
||
|
||
make-iso9660-image))
|
||
|
||
(define (sexp->partition sexp)
|
||
"Take SEXP, a tuple as returned by 'partition->gexp', and turn it into a
|
||
<partition> record."
|
||
(match sexp
|
||
((size file-system file-system-options label uuid flags)
|
||
(partition (size size)
|
||
(file-system file-system)
|
||
(file-system-options file-system-options)
|
||
(label label)
|
||
(uuid uuid)
|
||
(flags flags)))))
|
||
|
||
(define (size-in-kib size)
|
||
"Convert SIZE expressed in bytes, to kilobytes and return it as a string."
|
||
(number->string
|
||
(inexact->exact (ceiling (/ size 1024)))))
|
||
|
||
(define (estimate-partition-size root)
|
||
"Given the ROOT directory, evaluate and return its size. As this doesn't
|
||
take the partition metadata size into account, take a 25% margin. As this in
|
||
turn doesn't take any constant overhead into account, force a 1-MiB minimum."
|
||
(max (ash 1 20)
|
||
(* 1.25 (file-size root))))
|
||
|
||
(define* (make-ext-image partition target root
|
||
#:key
|
||
(owner-uid 0)
|
||
(owner-gid 0))
|
||
"Handle the creation of EXT2/3/4 partition images. See
|
||
'make-partition-image'."
|
||
(let ((size (partition-size partition))
|
||
(fs (partition-file-system partition))
|
||
(fs-options (partition-file-system-options partition))
|
||
(label (partition-label partition))
|
||
(uuid (partition-uuid partition))
|
||
(flags (partition-flags partition))
|
||
(journal-options "lazy_itable_init=1,lazy_journal_init=1"))
|
||
(apply invoke
|
||
`("fakeroot" "mke2fs" "-t" ,fs "-d" ,root
|
||
"-L" ,label "-U" ,(uuid->string uuid)
|
||
"-E" ,(format #f "root_owner=~a:~a,~a"
|
||
owner-uid owner-gid journal-options)
|
||
,@fs-options
|
||
,target
|
||
,(format #f "~ak"
|
||
(size-in-kib
|
||
(if (eq? size 'guess)
|
||
(estimate-partition-size root)
|
||
size)))))))
|
||
|
||
(define* (make-vfat-image partition target root fs-bits)
|
||
"Handle the creation of VFAT partition images. See 'make-partition-image'."
|
||
(let ((size (partition-size partition))
|
||
(label (partition-label partition))
|
||
(flags (partition-flags partition)))
|
||
(apply invoke "fakeroot" "mkdosfs" "-n" label "-C" target
|
||
"-F" (number->string fs-bits)
|
||
(size-in-kib
|
||
(if (eq? size 'guess)
|
||
(estimate-partition-size root)
|
||
size))
|
||
(if (member 'esp flags) (list "-S" "1024") '()))
|
||
(for-each (lambda (file)
|
||
(unless (member file '("." ".."))
|
||
(invoke "mcopy" "-bsp" "-i" target
|
||
(string-append root "/" file)
|
||
(string-append "::" file))))
|
||
(scandir root))))
|
||
|
||
(define* (make-partition-image partition-sexp target root)
|
||
"Create and return the image of PARTITION-SEXP as TARGET. Use the given
|
||
ROOT directory to populate the image."
|
||
(let* ((partition (sexp->partition partition-sexp))
|
||
(type (partition-file-system partition)))
|
||
(cond
|
||
((string-prefix? "ext" type)
|
||
(make-ext-image partition target root))
|
||
((or (string=? type "vfat") (string=? type "fat16"))
|
||
(make-vfat-image partition target root 16))
|
||
((string=? type "fat32")
|
||
(make-vfat-image partition target root 32))
|
||
(else
|
||
(raise (condition
|
||
(&message
|
||
(message "unsupported partition type"))))))))
|
||
|
||
(define (convert-disk-image image format output)
|
||
"Convert IMAGE to OUTPUT according to the given FORMAT."
|
||
(case format
|
||
((compressed-qcow2)
|
||
(invoke "qemu-img" "convert" "-c" "-f" "raw"
|
||
"-O" "qcow2" image output))
|
||
(else
|
||
(copy-file image output))))
|
||
|
||
(define* (genimage config)
|
||
"Use genimage to generate in TARGET directory, the image described in the
|
||
given CONFIG file."
|
||
;; genimage needs a 'root' directory.
|
||
(mkdir "root")
|
||
(invoke "genimage" "--config" config))
|
||
|
||
(define* (register-closure prefix closure
|
||
#:key
|
||
(schema (sql-schema))
|
||
(wal-mode? #t))
|
||
"Register CLOSURE in PREFIX, where PREFIX is the directory name of the
|
||
target store and CLOSURE is the name of a file containing a reference graph as
|
||
produced by #:references-graphs. Pass WAL-MODE? to call-with-database."
|
||
(let ((items (call-with-input-file closure read-reference-graph)))
|
||
(parameterize ((sql-schema schema))
|
||
(with-database (store-database-file #:prefix prefix) db
|
||
#:wal-mode? wal-mode?
|
||
(register-items db items
|
||
#:prefix prefix
|
||
#:registration-time %epoch)))))
|
||
|
||
(define* (initialize-efi-partition root
|
||
#:key
|
||
grub-efi
|
||
#:allow-other-keys)
|
||
"Install in ROOT directory, an EFI loader using GRUB-EFI."
|
||
(install-efi-loader grub-efi root))
|
||
|
||
(define* (initialize-efi32-partition root
|
||
#:key
|
||
grub-efi32
|
||
#:allow-other-keys)
|
||
"Install in ROOT directory, an EFI 32bit loader using GRUB-EFI32."
|
||
(install-efi-loader grub-efi32 root
|
||
#:targets (cond ((target-x86?)
|
||
'("i386-efi" . "BOOTIA32.EFI"))
|
||
((target-arm?)
|
||
'("arm-efi" . "BOOTARM.EFI")))))
|
||
|
||
(define* (initialize-root-partition root
|
||
#:key
|
||
bootcfg
|
||
bootcfg-location
|
||
bootloader-package
|
||
bootloader-installer
|
||
(copy-closures? #t)
|
||
(deduplicate? #t)
|
||
references-graphs
|
||
(register-closures? #t)
|
||
system-directory
|
||
make-device-nodes
|
||
(wal-mode? #t)
|
||
#:allow-other-keys)
|
||
"Initialize the given ROOT directory. Use BOOTCFG and BOOTCFG-LOCATION to
|
||
install the bootloader configuration.
|
||
|
||
If COPY-CLOSURES? is true, copy all of REFERENCES-GRAPHS to the partition. If
|
||
REGISTER-CLOSURES? is true, register REFERENCES-GRAPHS in the store. If
|
||
DEDUPLICATE? is true, then also deduplicate files common to CLOSURES and the
|
||
rest of the store when registering the closures. SYSTEM-DIRECTORY is the name
|
||
of the directory of the 'system' derivation. Pass WAL-MODE? to
|
||
register-closure."
|
||
(define root-store
|
||
(string-append root (%store-directory)))
|
||
|
||
(define tmp-store ".tmp-store")
|
||
|
||
(populate-root-file-system system-directory root)
|
||
|
||
(when copy-closures?
|
||
(populate-store references-graphs root
|
||
#:deduplicate? deduplicate?))
|
||
|
||
;; Populate /dev.
|
||
(when make-device-nodes
|
||
(make-device-nodes root))
|
||
|
||
(when register-closures?
|
||
(unless copy-closures?
|
||
;; XXX: 'register-closure' wants to palpate the things it registers, so
|
||
;; create a symlink to the store.
|
||
(rename-file root-store tmp-store)
|
||
(symlink (%store-directory) root-store))
|
||
|
||
(for-each (lambda (closure)
|
||
(register-closure root closure
|
||
#:wal-mode? wal-mode?))
|
||
references-graphs)
|
||
|
||
(unless copy-closures?
|
||
(delete-file root-store)
|
||
(rename-file tmp-store root-store)))
|
||
|
||
;; There's no point installing a bootloader if we do not populate the store.
|
||
(when copy-closures?
|
||
(when bootloader-installer
|
||
(display "installing bootloader...\n")
|
||
(bootloader-installer bootloader-package #f root))
|
||
(when bootcfg
|
||
(install-boot-config bootcfg bootcfg-location root))))
|
||
|
||
(define* (make-iso9660-image xorriso grub-mkrescue-environment
|
||
grub bootcfg system-directory root target
|
||
#:key (volume-id "Guix_image") (volume-uuid #f)
|
||
register-closures? (references-graphs '())
|
||
(compression? #t))
|
||
"Given a GRUB package, creates an iso image as TARGET, using BOOTCFG 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 (getcwd) "/" "grub-mkrescue-sed.sh"))
|
||
|
||
;; Use a modified version of grub-mkrescue-sed.sh, see below.
|
||
(copy-file (string-append xorriso
|
||
"/bin/grub-mkrescue-sed.sh")
|
||
grub-mkrescue-sed.sh)
|
||
|
||
;; Force grub-mkrescue-sed.sh to use the build directory instead of /tmp
|
||
;; that is read-only inside the build container.
|
||
(substitute* grub-mkrescue-sed.sh
|
||
(("/tmp/") (string-append (getcwd) "/"))
|
||
(("MKRESCUE_SED_XORRISO_ARGS \\$x")
|
||
(format #f "MKRESCUE_SED_XORRISO_ARGS $(echo $x | sed \"s|/tmp|~a|\")"
|
||
(getcwd))))
|
||
|
||
;; '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)
|
||
|
||
(apply invoke grub-mkrescue
|
||
(string-append "--xorriso=" grub-mkrescue-sed.sh)
|
||
"-o" target
|
||
(string-append "boot/grub/grub.cfg=" bootcfg)
|
||
root
|
||
"--"
|
||
;; Set all timestamps to 1.
|
||
"-volume_date" "all_file_dates" "=1"
|
||
|
||
`(,@(if compression?
|
||
'(;; ‘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)))
|
||
'()))))
|