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authorLudovic Courtès <ludo@gnu.org>2014-09-03 10:47:05 +0200
committerLudovic Courtès <ludo@gnu.org>2014-09-03 15:43:07 +0200
commit548f7a8fa2a4745d0e35e175e201513857440991 (patch)
tree5fa6118434b77716c93fac9ac2dac51ca257f807 /guix
parent141360b5b257715fdca2db4fc106b4220788ae06 (diff)
downloadguix-patches-548f7a8fa2a4745d0e35e175e201513857440991.tar
guix-patches-548f7a8fa2a4745d0e35e175e201513857440991.tar.gz
Move operating system helpers from (guix build …) to (gnu build …).
* guix/build/activation.scm, guix/build/install.scm, guix/build/linux-initrd.scm, guix/build/vm.scm: Move to... * gnu/build: ... here. * Makefile.am (MODULES): Remove the above guix/build/ files. * gnu-system.am (GNU_SYSTEM_MODULES): Add the above gnu/build/ files here. * gnu/services/base.scm, gnu/services/dmd.scm, gnu/system.scm, gnu/system/linux-initrd.scm, gnu/system/vm.scm, guix/scripts/system.scm: Adjust to the new module names.
Diffstat (limited to 'guix')
-rw-r--r--guix/build/activation.scm226
-rw-r--r--guix/build/install.scm136
-rw-r--r--guix/build/linux-initrd.scm702
-rw-r--r--guix/build/vm.scm259
-rw-r--r--guix/scripts/system.scm2
5 files changed, 1 insertions, 1324 deletions
diff --git a/guix/build/activation.scm b/guix/build/activation.scm
deleted file mode 100644
index b04b017881..0000000000
--- a/guix/build/activation.scm
+++ /dev/null
@@ -1,226 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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 (guix build activation)
- #:use-module (guix build utils)
- #:use-module (guix build linux-initrd)
- #:use-module (ice-9 ftw)
- #:use-module (ice-9 match)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:export (activate-users+groups
- activate-etc
- activate-setuid-programs
- activate-current-system))
-
-;;; Commentary:
-;;;
-;;; This module provides "activation" helpers. Activation is the process that
-;;; consists in setting up system-wide files and directories so that an
-;;; 'operating-system' configuration becomes active.
-;;;
-;;; Code:
-
-(define* (add-group name #:key gid password system?
- (log-port (current-error-port)))
- "Add NAME as a user group, with the given numeric GID if specified."
- ;; Use 'groupadd' from the Shadow package.
- (format log-port "adding group '~a'...~%" name)
- (let ((args `(,@(if gid `("-g" ,(number->string gid)) '())
- ,@(if password `("-p" ,password) '())
- ,@(if system? `("--system") '())
- ,name)))
- (zero? (apply system* "groupadd" args))))
-
-(define* (add-user name group
- #:key uid comment home shell password system?
- (supplementary-groups '())
- (log-port (current-error-port)))
- "Create an account for user NAME part of GROUP, with the specified
-properties. Return #t on success."
- (format log-port "adding user '~a'...~%" name)
-
- (if (and uid (zero? uid))
-
- ;; 'useradd' fails with "Cannot determine your user name" if the root
- ;; account doesn't exist. Thus, for bootstrapping purposes, create that
- ;; one manually.
- (begin
- (call-with-output-file "/etc/shadow"
- (cut format <> "~a::::::::~%" name))
- (call-with-output-file "/etc/passwd"
- (cut format <> "~a:x:~a:~a:~a:~a:~a~%"
- name "0" "0" comment home shell))
- (chmod "/etc/shadow" #o600)
- #t)
-
- ;; Use 'useradd' from the Shadow package.
- (let ((args `(,@(if uid `("-u" ,(number->string uid)) '())
- "-g" ,(if (number? group) (number->string group) group)
- ,@(if (pair? supplementary-groups)
- `("-G" ,(string-join supplementary-groups ","))
- '())
- ,@(if comment `("-c" ,comment) '())
- ,@(if home
- (if (file-exists? home)
- `("-d" ,home) ; avoid warning from 'useradd'
- `("-d" ,home "--create-home"))
- '())
- ,@(if shell `("-s" ,shell) '())
- ,@(if password `("-p" ,password) '())
- ,@(if system? '("--system") '())
- ,name)))
- (zero? (apply system* "useradd" args)))))
-
-(define (activate-users+groups users groups)
- "Make sure the accounts listed in USERS and the user groups listed in GROUPS
-are all available.
-
-Each item in USERS is a list of all the characteristics of a user account;
-each item in GROUPS is a tuple with the group name, group password or #f, and
-numeric gid or #f."
- (define (touch file)
- (close-port (open-file file "a0b")))
-
- (define activate-user
- (match-lambda
- ((name uid group supplementary-groups comment home shell password system?)
- (unless (false-if-exception (getpwnam name))
- (let ((profile-dir (string-append "/var/guix/profiles/per-user/"
- name)))
- (add-user name group
- #:uid uid
- #:system? system?
- #:supplementary-groups supplementary-groups
- #:comment comment
- #:home home
- #:shell shell
- #:password password)
-
- (unless system?
- ;; Create the profile directory for the new account.
- (let ((pw (getpwnam name)))
- (mkdir-p profile-dir)
- (chown profile-dir (passwd:uid pw) (passwd:gid pw)))))))))
-
- ;; 'groupadd' aborts if the file doesn't already exist.
- (touch "/etc/group")
-
- ;; Create the root account so we can use 'useradd' and 'groupadd'.
- (activate-user (find (match-lambda
- ((name (? zero?) _ ...) #t)
- (_ #f))
- users))
-
- ;; Then create the groups.
- (for-each (match-lambda
- ((name password gid system?)
- (unless (false-if-exception (getgrnam name))
- (add-group name
- #:gid gid #:password password
- #:system? system?))))
- groups)
-
- ;; Finally create the other user accounts.
- (for-each activate-user users))
-
-(define (activate-etc etc)
- "Install ETC, a directory in the store, as the source of static files for
-/etc."
-
- ;; /etc is a mixture of static and dynamic settings. Here is where we
- ;; initialize it from the static part.
-
- (format #t "populating /etc from ~a...~%" etc)
- (let ((rm-f (lambda (f)
- (false-if-exception (delete-file f)))))
- (rm-f "/etc/static")
- (symlink etc "/etc/static")
- (for-each (lambda (file)
- ;; TODO: Handle 'shadow' specially so that changed
- ;; password aren't lost.
- (let ((target (string-append "/etc/" file))
- (source (string-append "/etc/static/" file)))
- (rm-f target)
- (symlink source target)))
- (scandir etc
- (lambda (file)
- (not (member file '("." ".."))))
-
- ;; The default is 'string-locale<?', but we don't have
- ;; it when run from the initrd's statically-linked
- ;; Guile.
- string<?))
-
- ;; Prevent ETC from being GC'd.
- (rm-f "/var/guix/gcroots/etc-directory")
- (symlink etc "/var/guix/gcroots/etc-directory")))
-
-(define %setuid-directory
- ;; Place where setuid programs are stored.
- "/run/setuid-programs")
-
-(define (activate-setuid-programs programs)
- "Turn PROGRAMS, a list of file names, into setuid programs stored under
-%SETUID-DIRECTORY."
- (define (make-setuid-program prog)
- (let ((target (string-append %setuid-directory
- "/" (basename prog))))
- (catch 'system-error
- (lambda ()
- (link prog target))
- (lambda args
- ;; Perhaps PROG and TARGET live in a different file system, so copy
- ;; PROG.
- (copy-file prog target)))
- (chown target 0 0)
- (chmod target #o6555)))
-
- (format #t "setting up setuid programs in '~a'...~%"
- %setuid-directory)
- (if (file-exists? %setuid-directory)
- (for-each (compose delete-file
- (cut string-append %setuid-directory "/" <>))
- (scandir %setuid-directory
- (lambda (file)
- (not (member file '("." ".."))))
- string<?))
- (mkdir-p %setuid-directory))
-
- (for-each make-setuid-program programs))
-
-(define %current-system
- ;; The system that is current (a symlink.) This is not necessarily the same
- ;; as the system we booted (aka. /run/booted-system) because we can re-build
- ;; a new system configuration and activate it, without rebooting.
- "/run/current-system")
-
-(define (boot-time-system)
- "Return the '--system' argument passed on the kernel command line."
- (find-long-option "--system" (linux-command-line)))
-
-(define* (activate-current-system #:optional (system (boot-time-system)))
- "Atomically make SYSTEM the current system."
- (format #t "making '~a' the current system...~%" system)
-
- ;; Atomically make SYSTEM current.
- (let ((new (string-append %current-system ".new")))
- (symlink system new)
- (rename-file new %current-system)))
-
-;;; activation.scm ends here
diff --git a/guix/build/install.scm b/guix/build/install.scm
deleted file mode 100644
index 5bafe905de..0000000000
--- a/guix/build/install.scm
+++ /dev/null
@@ -1,136 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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 (guix build install)
- #:use-module (guix build utils)
- #:use-module (guix build install)
- #:use-module (srfi srfi-26)
- #:use-module (ice-9 match)
- #:export (install-grub
- populate-root-file-system
- reset-timestamps
- register-closure))
-
-;;; Commentary:
-;;;
-;;; This module supports the installation of the GNU system on a hard disk.
-;;; It is meant to be used both in a build environment (in derivations that
-;;; build VM images), and on the bare metal (when really installing the
-;;; system.)
-;;;
-;;; Code:
-
-(define* (install-grub grub.cfg device mount-point)
- "Install GRUB with GRUB.CFG on DEVICE, which is assumed to be mounted on
-MOUNT-POINT."
- (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)
-
- (unless (zero? (system* "grub-install" "--no-floppy"
- "--boot-directory"
- (string-append mount-point "/boot")
- device))
- (error "failed to install GRUB"))))
-
-(define (evaluate-populate-directive directive target)
- "Evaluate DIRECTIVE, an sexp describing a file or directory to create under
-directory TARGET."
- (let loop ((directive directive))
- (match directive
- (('directory name)
- (mkdir-p (string-append target name)))
- (('directory name uid gid)
- (let ((dir (string-append target name)))
- (mkdir-p dir)
- (chown dir uid gid)))
- (('directory name uid gid mode)
- (loop `(directory ,name ,uid ,gid))
- (chmod (string-append target name) mode))
- ((new '-> old)
- (symlink old (string-append target new))))))
-
-(define (directives store)
- "Return a list of directives to populate the root file system that will host
-STORE."
- `(;; Note: the store's GID is fixed precisely so we can set it here rather
- ;; than at activation time.
- (directory ,store 0 30000 #o1775)
-
- (directory "/etc")
- (directory "/var/log") ; for dmd
- (directory "/var/guix/gcroots")
- (directory "/var/empty") ; for no-login accounts
- (directory "/var/db") ; for dhclient, etc.
- (directory "/var/run")
- (directory "/run")
- (directory "/mnt")
- (directory "/var/guix/profiles/per-user/root" 0 0)
-
- ;; Link to the initial system generation.
- ("/var/guix/profiles/system" -> "system-1-link")
-
- ("/var/guix/gcroots/booted-system" -> "/run/booted-system")
- ("/var/guix/gcroots/current-system" -> "/run/current-system")
-
- (directory "/bin")
- ("/bin/sh" -> "/run/current-system/profile/bin/bash")
- (directory "/tmp" 0 0 #o1777) ; sticky bit
-
- (directory "/root" 0 0) ; an exception
- (directory "/home" 0 0)))
-
-(define (populate-root-file-system system target)
- "Make the essential non-store files and directories on TARGET. This
-includes /etc, /var, /run, /bin/sh, etc., and all the symlinks to SYSTEM."
- (for-each (cut evaluate-populate-directive <> target)
- (directives (%store-directory)))
-
- ;; Add system generation 1.
- (symlink system
- (string-append target "/var/guix/profiles/system-1-link")))
-
-(define (reset-timestamps directory)
- "Reset the timestamps of all the files under DIRECTORY, so that they appear
-as created and modified at the Epoch."
- (display "clearing file timestamps...\n")
- (for-each (lambda (file)
- (let ((s (lstat file)))
- ;; XXX: Guile uses libc's 'utime' function (not 'futime'), so
- ;; the timestamp of symlinks cannot be changed, and there are
- ;; symlinks here pointing to /gnu/store, which is the host,
- ;; read-only store.
- (unless (eq? (stat:type s) 'symlink)
- (utime file 0 0 0 0))))
- (find-files directory "")))
-
-(define (register-closure store closure)
- "Register CLOSURE in STORE, where STORE is the directory name of the target
-store and CLOSURE is the name of a file containing a reference graph as used
-by 'guix-register'. As a side effect, this resets timestamps on store files."
- (let ((status (system* "guix-register" "--prefix" store
- closure)))
- (unless (zero? status)
- (error "failed to register store items" closure))))
-
-;;; install.scm ends here
diff --git a/guix/build/linux-initrd.scm b/guix/build/linux-initrd.scm
deleted file mode 100644
index d37da9a6ff..0000000000
--- a/guix/build/linux-initrd.scm
+++ /dev/null
@@ -1,702 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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 (guix build linux-initrd)
- #:use-module (rnrs io ports)
- #:use-module (rnrs bytevectors)
- #:use-module (system foreign)
- #:use-module (system repl error-handling)
- #:autoload (system repl repl) (start-repl)
- #:autoload (system base compile) (compile-file)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:use-module (ice-9 match)
- #:use-module (ice-9 rdelim)
- #:use-module (ice-9 ftw)
- #:use-module (guix build utils)
- #:export (mount-essential-file-systems
- linux-command-line
- find-long-option
- make-essential-device-nodes
- configure-qemu-networking
-
- disk-partitions
- partition-label-predicate
- find-partition-by-label
- canonicalize-device-spec
-
- mount-flags->bit-mask
- check-file-system
- mount-file-system
- bind-mount
-
- load-linux-module*
- device-number
- boot-system))
-
-;;; Commentary:
-;;;
-;;; Utility procedures useful in a Linux initial RAM disk (initrd). Note that
-;;; many of these use procedures not yet available in vanilla Guile (`mount',
-;;; `load-linux-module', etc.); these are provided by a Guile patch used in
-;;; the GNU distribution.
-;;;
-;;; Code:
-
-(define* (mount-essential-file-systems #:key (root "/"))
- "Mount /proc and /sys under ROOT."
- (define (scope dir)
- (string-append root
- (if (string-suffix? "/" root)
- ""
- "/")
- dir))
-
- (unless (file-exists? (scope "proc"))
- (mkdir (scope "proc")))
- (mount "none" (scope "proc") "proc")
-
- (unless (file-exists? (scope "sys"))
- (mkdir (scope "sys")))
- (mount "none" (scope "sys") "sysfs"))
-
-(define (move-essential-file-systems root)
- "Move currently mounted essential file systems to ROOT."
- (for-each (lambda (dir)
- (let ((target (string-append root dir)))
- (unless (file-exists? target)
- (mkdir target))
- (mount dir target "" MS_MOVE)))
- '("/proc" "/sys")))
-
-(define (linux-command-line)
- "Return the Linux kernel command line as a list of strings."
- (string-tokenize
- (call-with-input-file "/proc/cmdline"
- get-string-all)))
-
-(define (find-long-option option arguments)
- "Find OPTION among ARGUMENTS, where OPTION is something like \"--load\".
-Return the value associated with OPTION, or #f on failure."
- (let ((opt (string-append option "=")))
- (and=> (find (cut string-prefix? opt <>)
- arguments)
- (lambda (arg)
- (substring arg (+ 1 (string-index arg #\=)))))))
-
-(define-syntax %ext2-endianness
- ;; Endianness of ext2 file systems.
- (identifier-syntax (endianness little)))
-
-;; Offset in bytes of interesting parts of an ext2 superblock. See
-;; <http://www.nongnu.org/ext2-doc/ext2.html#DEF-SUPERBLOCK>.
-;; TODO: Use "packed structs" from Guile-OpenGL or similar.
-(define-syntax %ext2-sblock-magic (identifier-syntax 56))
-(define-syntax %ext2-sblock-creator-os (identifier-syntax 72))
-(define-syntax %ext2-sblock-uuid (identifier-syntax 104))
-(define-syntax %ext2-sblock-volume-name (identifier-syntax 120))
-
-(define (read-ext2-superblock device)
- "Return the raw contents of DEVICE's ext2 superblock as a bytevector, or #f
-if DEVICE does not contain an ext2 file system."
- (define %ext2-magic
- ;; The magic bytes that identify an ext2 file system.
- #xef53)
-
- (define superblock-size
- ;; Size of the interesting part of an ext2 superblock.
- 264)
-
- (define block
- ;; The superblock contents.
- (make-bytevector superblock-size))
-
- (call-with-input-file device
- (lambda (port)
- (seek port 1024 SEEK_SET)
-
- ;; Note: work around <http://bugs.gnu.org/17466>.
- (and (eqv? superblock-size (get-bytevector-n! port block 0
- superblock-size))
- (let ((magic (bytevector-u16-ref block %ext2-sblock-magic
- %ext2-endianness)))
- (and (= magic %ext2-magic)
- block))))))
-
-(define (ext2-superblock-uuid sblock)
- "Return the UUID of ext2 superblock SBLOCK as a 16-byte bytevector."
- (let ((uuid (make-bytevector 16)))
- (bytevector-copy! sblock %ext2-sblock-uuid uuid 0 16)
- uuid))
-
-(define (ext2-superblock-volume-name sblock)
- "Return the volume name of SBLOCK as a string of at most 16 characters, or
-#f if SBLOCK has no volume name."
- (let ((bv (make-bytevector 16)))
- (bytevector-copy! sblock %ext2-sblock-volume-name bv 0 16)
-
- ;; This is a Latin-1, nul-terminated string.
- (let ((bytes (take-while (negate zero?) (bytevector->u8-list bv))))
- (if (null? bytes)
- #f
- (list->string (map integer->char bytes))))))
-
-(define (disk-partitions)
- "Return the list of device names corresponding to valid disk partitions."
- (define (partition? major minor)
- (let ((marker (format #f "/sys/dev/block/~a:~a/partition" major minor)))
- (catch 'system-error
- (lambda ()
- (not (zero? (call-with-input-file marker read))))
- (lambda args
- (if (= ENOENT (system-error-errno args))
- #f
- (apply throw args))))))
-
- (call-with-input-file "/proc/partitions"
- (lambda (port)
- ;; Skip the two header lines.
- (read-line port)
- (read-line port)
-
- ;; Read each subsequent line, and extract the last space-separated
- ;; field.
- (let loop ((parts '()))
- (let ((line (read-line port)))
- (if (eof-object? line)
- (reverse parts)
- (match (string-tokenize line)
- (((= string->number major) (= string->number minor)
- blocks name)
- (if (partition? major minor)
- (loop (cons name parts))
- (loop parts))))))))))
-
-(define (partition-label-predicate label)
- "Return a procedure that, when applied to a partition name such as \"sda1\",
-return #t if that partition's volume name is LABEL."
- (lambda (part)
- (let* ((device (string-append "/dev/" part))
- (sblock (catch 'system-error
- (lambda ()
- (read-ext2-superblock device))
- (lambda args
- ;; When running on the hand-made /dev,
- ;; 'disk-partitions' could return partitions for which
- ;; we have no /dev node. Handle that gracefully.
- (if (= ENOENT (system-error-errno args))
- (begin
- (format (current-error-port)
- "warning: device '~a' not found~%"
- device)
- #f)
- (apply throw args))))))
- (and sblock
- (let ((volume (ext2-superblock-volume-name sblock)))
- (and volume
- (string=? volume label)))))))
-
-(define (find-partition-by-label label)
- "Return the first partition found whose volume name is LABEL, or #f if none
-were found."
- (and=> (find (partition-label-predicate label)
- (disk-partitions))
- (cut string-append "/dev/" <>)))
-
-(define* (canonicalize-device-spec spec #:optional (title 'any))
- "Return the device name corresponding to SPEC. TITLE is a symbol, one of
-the following:
-
- • 'device', in which case SPEC is known to designate a device node--e.g.,
- \"/dev/sda1\";
- • 'label', in which case SPEC is known to designate a partition label--e.g.,
- \"my-root-part\";
- • 'any', in which case SPEC can be anything.
-"
- (define max-trials
- ;; Number of times we retry partition label resolution, 1 second per
- ;; trial. Note: somebody reported a delay of 16 seconds (!) before their
- ;; USB key would be detected by the kernel, so we must wait for at least
- ;; this long.
- 20)
-
- (define canonical-title
- ;; The realm of canonicalization.
- (if (eq? title 'any)
- (if (string-prefix? "/" spec)
- 'device
- 'label)
- title))
-
- (case canonical-title
- ((device)
- ;; Nothing to do.
- spec)
- ((label)
- ;; Resolve the label.
- (let loop ((count 0))
- (let ((device (find-partition-by-label spec)))
- (or device
- ;; Some devices take a bit of time to appear, most notably USB
- ;; storage devices. Thus, wait for the device to appear.
- (if (> count max-trials)
- (error "failed to resolve partition label" spec)
- (begin
- (format #t "waiting for partition '~a' to appear...~%"
- spec)
- (sleep 1)
- (loop (+ 1 count))))))))
- ;; TODO: Add support for UUIDs.
- (else
- (error "unknown device title" title))))
-
-(define* (make-disk-device-nodes base major #:optional (minor 0))
- "Make the block device nodes around BASE (something like \"/root/dev/sda\")
-with the given MAJOR number, starting with MINOR."
- (mknod base 'block-special #o644 (device-number major minor))
- (let loop ((i 1))
- (when (< i 6)
- (mknod (string-append base (number->string i))
- 'block-special #o644 (device-number major (+ minor i)))
- (loop (+ i 1)))))
-
-(define* (make-essential-device-nodes #:key (root "/"))
- "Make essential device nodes under ROOT/dev."
- ;; The hand-made udev!
-
- (define (scope dir)
- (string-append root
- (if (string-suffix? "/" root)
- ""
- "/")
- dir))
-
- (unless (file-exists? (scope "dev"))
- (mkdir (scope "dev")))
-
- ;; Make the device nodes for SCSI disks.
- (make-disk-device-nodes (scope "dev/sda") 8)
- (make-disk-device-nodes (scope "dev/sdb") 8 16)
- (make-disk-device-nodes (scope "dev/sdc") 8 32)
- (make-disk-device-nodes (scope "dev/sdd") 8 48)
-
- ;; SCSI CD-ROM devices (aka. "/dev/sr0" etc.).
- (mknod (scope "dev/scd0") 'block-special #o644 (device-number 11 0))
- (mknod (scope "dev/scd1") 'block-special #o644 (device-number 11 1))
-
- ;; The virtio (para-virtualized) block devices, as supported by QEMU/KVM.
- (make-disk-device-nodes (scope "dev/vda") 252)
-
- ;; Memory (used by Xorg's VESA driver.)
- (mknod (scope "dev/mem") 'char-special #o640 (device-number 1 1))
- (mknod (scope "dev/kmem") 'char-special #o640 (device-number 1 2))
-
- ;; Inputs (used by Xorg.)
- (unless (file-exists? (scope "dev/input"))
- (mkdir (scope "dev/input")))
- (mknod (scope "dev/input/mice") 'char-special #o640 (device-number 13 63))
- (mknod (scope "dev/input/mouse0") 'char-special #o640 (device-number 13 32))
- (mknod (scope "dev/input/event0") 'char-special #o640 (device-number 13 64))
-
- ;; System console. This node is magically created by the kernel on the
- ;; initrd's root, so don't try to create it in that case.
- (unless (string=? root "/")
- (mknod (scope "dev/console") 'char-special #o600
- (device-number 5 1)))
-
- ;; TTYs.
- (mknod (scope "dev/tty") 'char-special #o600
- (device-number 5 0))
- (chmod (scope "dev/tty") #o666)
- (let loop ((n 0))
- (and (< n 50)
- (let ((name (format #f "dev/tty~a" n)))
- (mknod (scope name) 'char-special #o600
- (device-number 4 n))
- (loop (+ 1 n)))))
-
- ;; Serial line.
- (mknod (scope "dev/ttyS0") 'char-special #o660
- (device-number 4 64))
-
- ;; Pseudo ttys.
- (mknod (scope "dev/ptmx") 'char-special #o666
- (device-number 5 2))
- (chmod (scope "dev/ptmx") #o666)
-
- ;; Create /dev/pts; it will be mounted later, at boot time.
- (unless (file-exists? (scope "dev/pts"))
- (mkdir (scope "dev/pts")))
-
- ;; Rendez-vous point for syslogd.
- (mknod (scope "dev/log") 'socket #o666 0)
- (mknod (scope "dev/kmsg") 'char-special #o600 (device-number 1 11))
-
- ;; Other useful nodes, notably relied on by guix-daemon.
- (for-each (match-lambda
- ((file major minor)
- (mknod (scope file) 'char-special #o666
- (device-number major minor))
- (chmod (scope file) #o666)))
- '(("dev/null" 1 3)
- ("dev/zero" 1 5)
- ("dev/full" 1 7)
- ("dev/random" 1 8)
- ("dev/urandom" 1 9)))
-
- (symlink "/proc/self/fd" (scope "dev/fd"))
- (symlink "/proc/self/fd/0" (scope "dev/stdin"))
- (symlink "/proc/self/fd/1" (scope "dev/stdout"))
- (symlink "/proc/self/fd/2" (scope "dev/stderr"))
-
- ;; Loopback devices.
- (let loop ((i 0))
- (when (< i 8)
- (mknod (scope (string-append "dev/loop" (number->string i)))
- 'block-special #o660
- (device-number 7 i))
- (loop (+ 1 i))))
-
- ;; File systems in user space (FUSE).
- (mknod (scope "dev/fuse") 'char-special #o666 (device-number 10 229)))
-
-(define %host-qemu-ipv4-address
- (inet-pton AF_INET "10.0.2.10"))
-
-(define* (configure-qemu-networking #:optional (interface "eth0"))
- "Setup the INTERFACE network interface and /etc/resolv.conf according to
-QEMU's default networking settings (see net/slirp.c in QEMU for default
-networking values.) Return #t if INTERFACE is up, #f otherwise."
- (display "configuring QEMU networking...\n")
- (let* ((sock (socket AF_INET SOCK_STREAM 0))
- (address (make-socket-address AF_INET %host-qemu-ipv4-address 0))
- (flags (network-interface-flags sock interface)))
- (set-network-interface-address sock interface address)
- (set-network-interface-flags sock interface (logior flags IFF_UP))
-
- ;; Hello! We used to create /etc/resolv.conf here, with "nameserver
- ;; 10.0.2.3\n". However, with Linux-libre 3.16, we're getting ENOSPC.
- ;; And since it's actually unnecessary, it's gone.
-
- (logand (network-interface-flags sock interface) IFF_UP)))
-
-;; Linux mount flags, from libc's <sys/mount.h>.
-(define MS_RDONLY 1)
-(define MS_NOSUID 2)
-(define MS_NODEV 4)
-(define MS_NOEXEC 8)
-(define MS_BIND 4096)
-(define MS_MOVE 8192)
-
-(define (bind-mount source target)
- "Bind-mount SOURCE at TARGET."
- (mount source target "" MS_BIND))
-
-(define (load-linux-module* file)
- "Load Linux module from FILE, the name of a `.ko' file."
- (define (slurp module)
- (call-with-input-file file get-bytevector-all))
-
- (load-linux-module (slurp file)))
-
-(define (device-number major minor)
- "Return the device number for the device with MAJOR and MINOR, for use as
-the last argument of `mknod'."
- (+ (* major 256) minor))
-
-(define (pidof program)
- "Return the PID of the first presumed instance of PROGRAM."
- (let ((program (basename program)))
- (find (lambda (pid)
- (let ((exe (format #f "/proc/~a/exe" pid)))
- (and=> (false-if-exception (readlink exe))
- (compose (cut string=? program <>) basename))))
- (filter-map string->number (scandir "/proc")))))
-
-(define* (mount-root-file-system root type
- #:key volatile-root? (unionfs "unionfs"))
- "Mount the root file system of type TYPE at device ROOT. If VOLATILE-ROOT?
-is true, mount ROOT read-only and make it a union with a writable tmpfs using
-UNIONFS."
- (define (mark-as-not-killable pid)
- ;; Tell the 'user-processes' dmd service that PID must be kept alive when
- ;; shutting down.
- (mkdir-p "/root/etc/dmd")
- (let ((port (open-file "/root/etc/dmd/do-not-kill" "a")))
- (chmod port #o600)
- (write pid port)
- (newline port)
- (close-port port)))
-
- (catch #t
- (lambda ()
- (if volatile-root?
- (begin
- (mkdir-p "/real-root")
- (mount root "/real-root" type MS_RDONLY)
- (mkdir-p "/rw-root")
- (mount "none" "/rw-root" "tmpfs")
-
- ;; We want read-write /dev nodes.
- (make-essential-device-nodes #:root "/rw-root")
-
- ;; Make /root a union of the tmpfs and the actual root. Use
- ;; 'max_files' to set a high RLIMIT_NOFILE for the unionfs process
- ;; itself. Failing to do that, we quickly run out of file
- ;; descriptors; see <http://bugs.gnu.org/17827>.
- (unless (zero? (system* unionfs "-o"
- "cow,allow_other,use_ino,suid,dev,max_files=65536"
- "/rw-root=RW:/real-root=RO"
- "/root"))
- (error "unionfs failed"))
-
- ;; Make sure unionfs remains alive till the end. Because
- ;; 'fuse_daemonize' doesn't tell the PID of the forked daemon, we
- ;; have to resort to 'pidof' here.
- (mark-as-not-killable (pidof unionfs)))
- (begin
- (check-file-system root type)
- (mount root "/root" type))))
- (lambda args
- (format (current-error-port) "exception while mounting '~a': ~s~%"
- root args)
- (start-repl)))
-
- (copy-file "/proc/mounts" "/root/etc/mtab"))
-
-(define (check-file-system device type)
- "Run a file system check of TYPE on DEVICE."
- (define fsck
- (string-append "fsck." type))
-
- (let ((status (system* fsck "-v" "-p" device)))
- (match (status:exit-val status)
- (0
- #t)
- (1
- (format (current-error-port) "'~a' corrected errors on ~a; continuing~%"
- fsck device))
- (2
- (format (current-error-port) "'~a' corrected errors on ~a; rebooting~%"
- fsck device)
- (sleep 3)
- (reboot))
- (code
- (format (current-error-port) "'~a' exited with code ~a on ~a; spawning REPL~%"
- fsck code device)
- (start-repl)))))
-
-(define (mount-flags->bit-mask flags)
- "Return the number suitable for the 'flags' argument of 'mount' that
-corresponds to the symbols listed in FLAGS."
- (let loop ((flags flags))
- (match flags
- (('read-only rest ...)
- (logior MS_RDONLY (loop rest)))
- (('bind-mount rest ...)
- (logior MS_BIND (loop rest)))
- (('no-suid rest ...)
- (logior MS_NOSUID (loop rest)))
- (('no-dev rest ...)
- (logior MS_NODEV (loop rest)))
- (('no-exec rest ...)
- (logior MS_NOEXEC (loop rest)))
- (()
- 0))))
-
-(define* (mount-file-system spec #:key (root "/root"))
- "Mount the file system described by SPEC under ROOT. SPEC must have the
-form:
-
- (DEVICE TITLE MOUNT-POINT TYPE (FLAGS ...) OPTIONS CHECK?)
-
-DEVICE, MOUNT-POINT, and TYPE must be strings; OPTIONS can be a string or #f;
-FLAGS must be a list of symbols. CHECK? is a Boolean indicating whether to
-run a file system check."
- (match spec
- ((source title mount-point type (flags ...) options check?)
- (let ((source (canonicalize-device-spec source title))
- (mount-point (string-append root "/" mount-point)))
- (when check?
- (check-file-system source type))
- (mkdir-p mount-point)
- (mount source mount-point type (mount-flags->bit-mask flags)
- (if options
- (string->pointer options)
- %null-pointer))
-
- ;; Update /etc/mtab.
- (mkdir-p (string-append root "/etc"))
- (let ((port (open-file (string-append root "/etc/mtab") "a")))
- (format port "~a ~a ~a ~a 0 0~%"
- source mount-point type (or options ""))
- (close-port port))))))
-
-(define (switch-root root)
- "Switch to ROOT as the root file system, in a way similar to what
-util-linux' switch_root(8) does."
- (move-essential-file-systems root)
- (chdir root)
-
- ;; Since we're about to 'rm -rf /', try to make sure we're on an initrd.
- ;; TODO: Use 'statfs' to check the fs type, like klibc does.
- (when (or (not (file-exists? "/init")) (directory-exists? "/home"))
- (format (current-error-port)
- "The root file system is probably not an initrd; \
-bailing out.~%root contents: ~s~%" (scandir "/"))
- (force-output (current-error-port))
- (exit 1))
-
- ;; Delete files from the old root, without crossing mount points (assuming
- ;; there are no mount points in sub-directories.) That means we're leaving
- ;; the empty ROOT directory behind us, but that's OK.
- (let ((root-device (stat:dev (stat "/"))))
- (for-each (lambda (file)
- (unless (member file '("." ".."))
- (let* ((file (string-append "/" file))
- (device (stat:dev (lstat file))))
- (when (= device root-device)
- (delete-file-recursively file)))))
- (scandir "/")))
-
- ;; Make ROOT the new root.
- (mount root "/" "" MS_MOVE)
- (chroot ".")
- (chdir "/")
-
- (when (file-exists? "/dev/console")
- ;; Close the standard file descriptors since they refer to the old
- ;; /dev/console, and reopen them.
- (let ((console (open-file "/dev/console" "r+b0")))
- (for-each close-fdes '(0 1 2))
-
- (dup2 (fileno console) 0)
- (dup2 (fileno console) 1)
- (dup2 (fileno console) 2)
-
- (close-port console))))
-
-
-(define* (boot-system #:key
- (linux-modules '())
- qemu-guest-networking?
- guile-modules-in-chroot?
- volatile-root?
- (mounts '()))
- "This procedure is meant to be called from an initrd. Boot a system by
-first loading LINUX-MODULES, then setting up QEMU guest networking if
-QEMU-GUEST-NETWORKING? is true, mounting the file systems specified in MOUNTS,
-and finally booting into the new root if any. The initrd supports kernel
-command-line options '--load', '--root', and '--repl'.
-
-Mount the root file system, specified by the '--root' command-line argument,
-if any.
-
-MOUNTS must be a list suitable for 'mount-file-system'.
-
-When GUILE-MODULES-IN-CHROOT? is true, make core Guile modules available in
-the new root.
-
-When VOLATILE-ROOT? is true, the root file system is writable but any changes
-to it are lost."
- (define root-mount-point?
- (match-lambda
- ((device _ "/" _ ...) #t)
- (_ #f)))
-
- (define root-fs-type
- (or (any (match-lambda
- ((device _ "/" type _ ...) type)
- (_ #f))
- mounts)
- "ext4"))
-
- (display "Welcome, this is GNU's early boot Guile.\n")
- (display "Use '--repl' for an initrd REPL.\n\n")
-
- (call-with-error-handling
- (lambda ()
- (mount-essential-file-systems)
- (let* ((args (linux-command-line))
- (to-load (find-long-option "--load" args))
- (root (find-long-option "--root" args)))
-
- (when (member "--repl" args)
- (start-repl))
-
- (display "loading kernel modules...\n")
- (for-each (compose load-linux-module*
- (cut string-append "/modules/" <>))
- linux-modules)
-
- (when qemu-guest-networking?
- (unless (configure-qemu-networking)
- (display "network interface is DOWN\n")))
-
- ;; Make /dev nodes.
- (make-essential-device-nodes)
-
- ;; Prepare the real root file system under /root.
- (unless (file-exists? "/root")
- (mkdir "/root"))
- (if root
- (mount-root-file-system (canonicalize-device-spec root)
- root-fs-type
- #:volatile-root? volatile-root?)
- (mount "none" "/root" "tmpfs"))
-
- (unless (file-exists? "/root/dev")
- (mkdir "/root/dev")
- (make-essential-device-nodes #:root "/root"))
-
- ;; Mount the specified file systems.
- (for-each mount-file-system
- (remove root-mount-point? mounts))
-
- (when guile-modules-in-chroot?
- ;; Copy the directories that contain .scm and .go files so that the
- ;; child process in the chroot can load modules (we would bind-mount
- ;; them but for some reason that fails with EINVAL -- XXX).
- (mkdir-p "/root/share")
- (mkdir-p "/root/lib")
- (mount "none" "/root/share" "tmpfs")
- (mount "none" "/root/lib" "tmpfs")
- (copy-recursively "/share" "/root/share"
- #:log (%make-void-port "w"))
- (copy-recursively "/lib" "/root/lib"
- #:log (%make-void-port "w")))
-
- (if to-load
- (begin
- (switch-root "/root")
- (format #t "loading '~a'...\n" to-load)
-
- ;; TODO: Remove /lib, /share, and /loader.go.
- (primitive-load to-load)
-
- (format (current-error-port)
- "boot program '~a' terminated, rebooting~%"
- to-load)
- (sleep 2)
- (reboot))
- (begin
- (display "no boot file passed via '--load'\n")
- (display "entering a warm and cozy REPL\n")
- (start-repl)))))))
-
-;;; linux-initrd.scm ends here
diff --git a/guix/build/vm.scm b/guix/build/vm.scm
deleted file mode 100644
index 11e05f70be..0000000000
--- a/guix/build/vm.scm
+++ /dev/null
@@ -1,259 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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 (guix build vm)
- #:use-module (guix build utils)
- #:use-module (guix build linux-initrd)
- #:use-module (guix build install)
- #:use-module (ice-9 match)
- #:use-module (ice-9 regex)
- #:use-module (ice-9 rdelim)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:export (qemu-command
- load-in-linux-vm
- format-partition
- initialize-root-partition
- initialize-partition-table
- initialize-hard-disk))
-
-;;; Commentary:
-;;;
-;;; This module provides supporting code to run virtual machines and build
-;;; virtual machine images using QEMU.
-;;;
-;;; Code:
-
-(define* (qemu-command #:optional (system %host-type))
- "Return the default name of the QEMU command for SYSTEM."
- (let ((cpu (substring %host-type 0
- (string-index %host-type #\-))))
- (string-append "qemu-system-"
- (if (string-match "^i[3456]86$" cpu)
- "i386"
- cpu))))
-
-(define* (load-in-linux-vm builder
- #:key
- output
- (qemu (qemu-command)) (memory-size 512)
- linux initrd
- make-disk-image? (disk-image-size 100)
- (disk-image-format "qcow2")
- (references-graphs '()))
- "Run BUILDER, a Scheme file, into a VM running LINUX with INITRD, and copy
-the result to OUTPUT.
-
-When MAKE-DISK-IMAGE? is true, OUTPUT will contain a VM image of
-DISK-IMAGE-SIZE MiB resulting from the execution of BUILDER, which may access
-it via /dev/hda.
-
-REFERENCES-GRAPHS can specify a list of reference-graph files as produced by
-the #:references-graphs parameter of 'derivation'."
- (define image-file
- (string-append "image." disk-image-format))
-
- (when make-disk-image?
- (unless (zero? (system* "qemu-img" "create" "-f" disk-image-format
- image-file
- (number->string disk-image-size)))
- (error "qemu-img failed")))
-
- (mkdir "xchg")
-
- (match references-graphs
- ((graph-files ...)
- ;; Copy the reference-graph files under xchg/ so EXP can access it.
- (map (lambda (file)
- (copy-file file (string-append "xchg/" file)))
- graph-files))
- (_ #f))
-
- (unless (zero?
- (apply system* qemu "-enable-kvm" "-nographic" "-no-reboot"
- "-m" (number->string memory-size)
- "-net" "nic,model=virtio"
- "-virtfs"
- (string-append "local,id=store_dev,path="
- (%store-directory)
- ",security_model=none,mount_tag=store")
- "-virtfs"
- (string-append "local,id=xchg_dev,path=xchg"
- ",security_model=none,mount_tag=xchg")
- "-kernel" linux
- "-initrd" initrd
- "-append" (string-append "console=ttyS0 --load="
- builder)
- (if make-disk-image?
- `("-drive" ,(string-append "file=" image-file
- ",if=virtio"))
- '())))
- (error "qemu failed" qemu))
-
- (if make-disk-image?
- (copy-file image-file output)
- (begin
- (mkdir output)
- (copy-recursively "xchg" output))))
-
-(define (read-reference-graph port)
- "Return a list of store paths from the reference graph at PORT.
-The data at PORT is the format produced by #:references-graphs."
- (let loop ((line (read-line port))
- (result '()))
- (cond ((eof-object? line)
- (delete-duplicates result))
- ((string-prefix? "/" line)
- (loop (read-line port)
- (cons line result)))
- (else
- (loop (read-line port)
- result)))))
-
-(define* (initialize-partition-table device partition-size
- #:key
- (label-type "msdos")
- (offset (expt 2 20)))
- "Create on DEVICE a partition table of type LABEL-TYPE, with a single
-partition of PARTITION-SIZE bytes starting at OFFSET bytes. Return #t on
-success."
- (format #t "creating partition table with a ~a B partition...\n"
- partition-size)
- (unless (zero? (system* "parted" device "mklabel" label-type
- "mkpart" "primary" "ext2"
- (format #f "~aB" offset)
- (format #f "~aB" partition-size)))
- (error "failed to create partition table")))
-
-(define* (populate-store reference-graphs target)
- "Populate the store under directory TARGET with the items specified in
-REFERENCE-GRAPHS, a list of reference-graph files."
- (define store
- (string-append target (%store-directory)))
-
- (define (things-to-copy)
- ;; Return the list of store files to copy to the image.
- (define (graph-from-file file)
- (call-with-input-file file read-reference-graph))
-
- (delete-duplicates (append-map graph-from-file reference-graphs)))
-
- (mkdir-p store)
- (chmod store #o1775)
- (for-each (lambda (thing)
- (copy-recursively thing
- (string-append target thing)))
- (things-to-copy)))
-
-(define MS_BIND 4096) ; <sys/mounts.h> again!
-
-(define* (format-partition partition type
- #:key label)
- "Create a file system TYPE on PARTITION. If LABEL is true, use that as the
-volume name."
- (format #t "creating ~a partition...\n" type)
- (unless (zero? (apply system* (string-append "mkfs." type)
- "-F" partition
- (if label
- `("-L" ,label)
- '())))
- (error "failed to create partition")))
-
-(define* (initialize-root-partition target-directory
- #:key copy-closures? register-closures?
- closures system-directory)
- "Initialize the root partition mounted at TARGET-DIRECTORY."
- (define target-store
- (string-append target-directory (%store-directory)))
-
- (when copy-closures?
- ;; Populate the store.
- (populate-store (map (cut string-append "/xchg/" <>) closures)
- target-directory))
-
- ;; Populate /dev.
- (make-essential-device-nodes #:root target-directory)
-
- ;; Optionally, register the inputs in the image's store.
- (when register-closures?
- (unless copy-closures?
- ;; XXX: 'guix-register' wants to palpate the things it registers, so
- ;; bind-mount the store on the target.
- (mkdir-p target-store)
- (mount (%store-directory) target-store "" MS_BIND))
-
- (display "registering closures...\n")
- (for-each (lambda (closure)
- (register-closure target-directory
- (string-append "/xchg/" closure)))
- closures)
- (unless copy-closures?
- (system* "umount" target-store)))
-
- ;; Add the non-store directories and files.
- (display "populating...\n")
- (populate-root-file-system system-directory target-directory))
-
-(define* (initialize-hard-disk device
- #:key
- system-directory
- grub.cfg
- disk-image-size
- (file-system-type "ext4")
- file-system-label
- (closures '())
- copy-closures?
- (register-closures? #t))
- "Initialize DEVICE, a disk of DISK-IMAGE-SIZE bytes, with a FILE-SYSTEM-TYPE
-partition with (optionally) FILE-SYSTEM-LABEL as its volume name, and with
-GRUB installed. If REGISTER-CLOSURES? is true, register all of CLOSURES is
-the partition's store. If COPY-CLOSURES? is true, copy all of CLOSURES to the
-partition. SYSTEM-DIRECTORY is the name of the directory of the 'system'
-derivation."
- (define target-directory
- "/fs")
-
- (define partition
- (string-append device "1"))
-
- (initialize-partition-table device
- (- disk-image-size (* 5 (expt 2 20))))
-
- (format-partition partition file-system-type
- #:label file-system-label)
-
- (display "mounting partition...\n")
- (mkdir target-directory)
- (mount partition target-directory file-system-type)
-
- (initialize-root-partition target-directory
- #:system-directory system-directory
- #:copy-closures? copy-closures?
- #:register-closures? register-closures?
- #:closures closures)
-
- (install-grub grub.cfg device target-directory)
-
- ;; 'guix-register' resets timestamps and everything, so no need to do it
- ;; once more in that case.
- (unless register-closures?
- (reset-timestamps target-directory))
-
- (zero? (system* "umount" target-directory)))
-
-;;; vm.scm ends here
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 4f1869af38..7c0dde9030 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -28,7 +28,7 @@
#:use-module (guix profiles)
#:use-module (guix scripts build)
#:use-module (guix build utils)
- #:use-module (guix build install)
+ #:use-module (gnu build install)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu system grub)