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gnu: bootloader: Support multiple targets.

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Fixes <https://issues.guix.gnu.org/40997>.

* gnu/bootloader.scm (<bootloader-configuration>): New 'targets' field.
(%bootloader-configuration-target): New procedure.
(bootloader-configuration-target): Add deprecation warning.
(bootloader-configuration-targets): New procedure.
* guix/scripts/system.scm (install): Access targets via
bootloader-configuration-targets.
(perform-action)[bootloader-target]: Remove unused argument and update doc.
Access targets via bootloader-configuration-targets and fix indentation.
(process-action): Access targets via bootloader-configuration-targets.
Do not provide the unused BOOTLOADER-TARGET argument when applying
`perform-action'.
* guix/scripts/system/reconfigure.scm (install-bootloader-program): Rename
DEVICE argument to DEVICES.  Adjust doc and comment.  Apply `installer' and
`disk-installer' for every DEVICES.
(install-bootloader): Access targets via bootloader-configuration-targets and
rename variable from DEVICE to DEVICES.
* gnu/tests/install.scm: Adjust accordingly.
* tests/guix-system.sh: Likewise.
* gnu/tests/reconfigure.scm (run-install-bootloader-test): Adjust the DEVICES
argument so that it is a list.
* doc/guix.texi: Update doc.
This commit is contained in:
Maxim Cournoyer 2021-08-06 16:33:02 -04:00
parent 76114232d7
commit 2ca982ff41
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GPG Key ID: 1260E46482E63562
7 changed files with 106 additions and 79 deletions
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87
doc/guix.texi
View File

@ -2569,14 +2569,15 @@ in particular:
@itemize
@item
Make sure the @code{bootloader-configuration} form refers to the target
you want to install GRUB on. It should mention @code{grub-bootloader} if
you are installing GRUB in the legacy way, or @code{grub-efi-bootloader}
for newer UEFI systems. For legacy systems, the @code{target} field
names a device, like @code{/dev/sda}; for UEFI systems it names a path
to a mounted EFI partition, like @code{/boot/efi}; do make sure the path is
currently mounted and a @code{file-system} entry is specified in your
configuration.
Make sure the @code{bootloader-configuration} form refers to the targets
you want to install GRUB on. It should mention @code{grub-bootloader}
if you are installing GRUB in the legacy way, or
@code{grub-efi-bootloader} for newer UEFI systems. For legacy systems,
the @code{targets} field contain the names of the devices, like
@code{(list "/dev/sda")}; for UEFI systems it names the paths to mounted
EFI partitions, like @code{(list "/boot/efi")}; do make sure the paths
are currently mounted and a @code{file-system} entry is specified in
your configuration.
@item
Be sure that your file system labels match the value of their respective
@ -13543,7 +13544,7 @@ the @code{bootloader} field should contain something along these lines:
@lisp
(bootloader-configuration
(bootloader grub-efi-bootloader)
(target "/boot/efi"))
(targets '("/boot/efi")))
@end lisp
@xref{Bootloader Configuration}, for more information on the available
@ -14758,7 +14759,7 @@ configuration would look like:
(keyboard-layout (keyboard-layout "tr")) ;for the console
(bootloader (bootloader-configuration
(bootloader grub-efi-bootloader)
(target "/boot/efi")
(targets '("/boot/efi"))
(keyboard-layout keyboard-layout))) ;for GRUB
(services (cons (set-xorg-configuration
(xorg-configuration ;for Xorg
@ -33188,11 +33189,11 @@ in ``legacy'' BIOS mode.
through TFTP@. In combination with an NFS root file system this allows you to
build a diskless Guix system.
The installation of the @code{grub-efi-netboot-bootloader} generates the content
of the TFTP root directory at @code{target}
(@pxref{Bootloader Configuration, @code{target}}), to be served by a TFTP server.
You may want to mount your TFTP server directory onto @code{target} to move the
required files to the TFTP server automatically.
The installation of the @code{grub-efi-netboot-bootloader} generates the
content of the TFTP root directory at @code{targets} (@pxref{Bootloader
Configuration, @code{targets}}), to be served by a TFTP server. You may
want to mount your TFTP server directories onto the @code{targets} to
move the required files to the TFTP server automatically.
If you plan to use an NFS root file system as well (actually if you mount the
store from an NFS share), then the TFTP server needs to serve the file
@ -33203,22 +33204,25 @@ files from the store will be accessed by GRUB through TFTP with their normal
store path, for example as
@file{tftp://tftp-server/gnu/store/…-initrd/initrd.cpio.gz}.
Two symlinks are created to make this possible. The first symlink is
@code{target}@file{/efi/Guix/boot/grub/grub.cfg} pointing to
@file{../../../boot/grub/grub.cfg},
where @code{target} may be @file{/boot}. In this case the link is not leaving
the served TFTP root directory, but otherwise it does. The second link is
@code{target}@file{/gnu/store} and points to @file{../gnu/store}. This link
is leaving the served TFTP root directory.
Two symlinks are created to make this possible. For each target in the
@code{targets} field, the first symlink is
@samp{target}@file{/efi/Guix/boot/grub/grub.cfg} pointing to
@file{../../../boot/grub/grub.cfg}, where @samp{target} may be
@file{/boot}. In this case the link is not leaving the served TFTP root
directory, but otherwise it does. The second link is
@samp{target}@file{/gnu/store} and points to @file{../gnu/store}. This
link is leaving the served TFTP root directory.
The assumption behind all this is that you have an NFS server exporting the root
file system for your Guix system, and additionally a TFTP server exporting your
@code{target} directory—usually @file{/boot}—from that same root file system for
your Guix system. In this constellation the symlinks will work.
The assumption behind all this is that you have an NFS server exporting
the root file system for your Guix system, and additionally a TFTP
server exporting your @code{targets} directories—usually a single
@file{/boot}—from that same root file system for your Guix system. In
this constellation the symlinks will work.
For other constellations you will have to program your own bootloader installer,
which then takes care to make necessary files from the store accessible through
TFTP, for example by copying them into the TFTP root directory at @code{target}.
For other constellations you will have to program your own bootloader
installer, which then takes care to make necessary files from the store
accessible through TFTP, for example by copying them into the TFTP root
directory to your @code{targets}.
It is important to note that symlinks pointing outside the TFTP root directory
may need to be allowed in the configuration of your TFTP server. Further the
@ -33230,18 +33234,19 @@ NFS servers, you also need a properly configured DHCP server to make the booting
over netboot possible. For all this we can currently only recommend you to look
for instructions about @acronym{PXE, Preboot eXecution Environment}.
@item @code{target}
This is a string denoting the target onto which to install the
@item @code{targets}
This is a list of strings denoting the targets onto which to install the
bootloader.
The interpretation depends on the bootloader in question. For
@code{grub-bootloader}, for example, it should be a device name understood by
the bootloader @command{installer} command, such as @code{/dev/sda} or
@code{(hd0)} (@pxref{Invoking grub-install,,, grub, GNU GRUB Manual}). For
@code{grub-efi-bootloader}, it should be the mount point of the EFI file
system, usually @file{/boot/efi}. For @code{grub-efi-netboot-bootloader},
@code{target} should be the mount point corresponding to the TFTP root
directory of your TFTP server.
The interpretation of targets depends on the bootloader in question.
For @code{grub-bootloader}, for example, they should be device names
understood by the bootloader @command{installer} command, such as
@code{/dev/sda} or @code{(hd0)} (@pxref{Invoking grub-install,,, grub,
GNU GRUB Manual}). For @code{grub-efi-bootloader}, they should be mount
points of the EFI file system, usually @file{/boot/efi}. For
@code{grub-efi-netboot-bootloader}, @code{targets} should be the mount
points corresponding to TFTP root directories served by your TFTP
server.
@item @code{menu-entries} (default: @code{()})
A possibly empty list of @code{menu-entry} objects (see below), denoting
@ -33657,7 +33662,7 @@ files, packages, and so on. It also creates other essential files
needed for the system to operate correctly---e.g., the @file{/etc},
@file{/var}, and @file{/run} directories, and the @file{/bin/sh} file.
This command also installs bootloader on the target specified in
This command also installs bootloader on the targets specified in
@file{my-os-config}, unless the @option{--no-bootloader} option was
passed.
@ -34053,7 +34058,7 @@ evaluates to. As an example, @var{file} might contain a definition like this:
(timezone "Etc/UTC")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vda")
(targets '("/dev/vda"))
(terminal-outputs '(console))))
(file-systems (cons (file-system
(mount-point "/")

22
gnu/bootloader.scm
View File

@ -55,7 +55,8 @@
bootloader-configuration
bootloader-configuration?
bootloader-configuration-bootloader
bootloader-configuration-target
bootloader-configuration-target ;deprecated
bootloader-configuration-targets
bootloader-configuration-menu-entries
bootloader-configuration-default-entry
bootloader-configuration-timeout
@ -183,7 +184,9 @@ record."
bootloader-configuration make-bootloader-configuration
bootloader-configuration?
(bootloader bootloader-configuration-bootloader) ;<bootloader>
(target bootloader-configuration-target ;string
(targets %bootloader-configuration-targets ;list of strings
(default #f))
(target %bootloader-configuration-target ;deprecated
(default #f))
(menu-entries bootloader-configuration-menu-entries ;list of <menu-entry>
(default '()))
@ -204,6 +207,21 @@ record."
(serial-speed bootloader-configuration-serial-speed ;integer | #f
(default #f)))
;;; Deprecated.
(define (bootloader-configuration-target config)
(warning (G_ "the 'target' field is deprecated, please use 'targets' \
instead~%"))
(%bootloader-configuration-target config))
(define (bootloader-configuration-targets config)
(or (%bootloader-configuration-targets config)
;; TODO: Remove after the deprecated 'target' field is removed.
(list (bootloader-configuration-target config))
;; XXX: At least the GRUB installer (see (gnu bootloader grub)) has this
;; peculiar behavior of installing fonts and GRUB modules when DEVICE is #f,
;; hence the default value of '(#f) rather than '().
(list #f)))
;;;
;;; Bootloaders.

26
gnu/tests/install.scm
View File

@ -4,7 +4,7 @@
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2020 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -97,7 +97,7 @@
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@ -135,7 +135,7 @@
(bootloader (bootloader-configuration
(bootloader extlinux-bootloader-gpt)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@ -418,7 +418,7 @@ per %test-installed-os, this test is expensive in terms of CPU and storage.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vda")))
(targets (list "/dev/vda"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@ -549,7 +549,7 @@ partition. In particular, home directories must be correctly created (see
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons* (file-system
(device (file-system-label "root-fs"))
@ -626,7 +626,7 @@ where /gnu lives on a separate partition.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
;; Add a kernel module for RAID-1 (aka. "mirror").
@ -842,7 +842,7 @@ build (current-guix) and then store a couple of full system images.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(mapped-devices (list (mapped-device
@ -929,7 +929,7 @@ reboot\n")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(mapped-devices (list (mapped-device
(source
@ -1029,7 +1029,7 @@ store a couple of full system images.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@ -1103,7 +1103,7 @@ build (current-guix) and then store a couple of full system images.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
@ -1171,7 +1171,7 @@ RAID-0 (stripe) root partition.")
(locale "en_US.UTF-8")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons* (file-system
(device (file-system-label "btrfs-pool"))
@ -1264,7 +1264,7 @@ build (current-guix) and then store a couple of full system images.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@ -1337,7 +1337,7 @@ build (current-guix) and then store a couple of full system images.")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/vdb")))
(targets (list "/dev/vdb"))))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons (file-system
(device (file-system-label "my-root"))

2
gnu/tests/reconfigure.scm
View File

@ -261,7 +261,7 @@ bootloader's configuration file."
;; would attempt to write directly to the virtual disk if the
;; installation script were run.
(test
(install-bootloader-program #f #f #f bootcfg bootcfg-file #f "/")))))
(install-bootloader-program #f #f #f bootcfg bootcfg-file '(#f) "/")))))
(define %test-switch-to-system

20
guix/scripts/system.scm
View File

@ -253,7 +253,7 @@ the ownership of '~a' may be incorrect!~%")
#:target target)
(return
(info (G_ "bootloader successfully installed on '~a'~%")
(bootloader-configuration-target bootloader))))))))
(bootloader-configuration-targets bootloader))))))))
;;;
@ -768,14 +768,13 @@ and TARGET arguments."
skip-safety-checks?
install-bootloader?
dry-run? derivations-only?
use-substitutes? bootloader-target target
use-substitutes? target
full-boot?
container-shared-network?
(mappings '())
(gc-root #f))
"Perform ACTION for IMAGE. INSTALL-BOOTLOADER? specifies whether to install
bootloader; BOOTLOADER-TAGET is the target for the bootloader; TARGET is the
target root directory.
bootloader; TARGET is the target root directory.
FULL-BOOT? is used for the 'vm' action; it determines whether to
boot directly to the kernel or to the bootloader. CONTAINER-SHARED-NETWORK?
@ -856,13 +855,13 @@ static checks."
#:target (or target "/"))
(return
(info (G_ "bootloader successfully installed on '~a'~%")
(bootloader-configuration-target bootloader))))
(bootloader-configuration-targets bootloader))))
(with-shepherd-error-handling
(upgrade-shepherd-services local-eval os)
(return (format #t (G_ "\
(upgrade-shepherd-services local-eval os)
(return (format #t (G_ "\
To complete the upgrade, run 'herd restart SERVICE' to stop,
upgrade, and restart each service that was not automatically restarted.\n")))
(return (format #t (G_ "\
(return (format #t (G_ "\
Run 'herd status' to view the list of services on your system.\n"))))))
((init)
(newline)
@ -1218,9 +1217,9 @@ resulting from command-line parsing."
(target-file (match args
((first second) second)
(_ #f)))
(bootloader-target
(bootloader-targets
(and bootloader?
(bootloader-configuration-target
(bootloader-configuration-targets
(operating-system-bootloader os)))))
(define (graph-backend)
@ -1269,7 +1268,6 @@ resulting from command-line parsing."
opts)
#:install-bootloader? bootloader?
#:target target-file
#:bootloader-target bootloader-target
#:gc-root (assoc-ref opts 'gc-root)))))
#:target target
#:system system)))

22
guix/scripts/system/reconfigure.scm
View File

@ -207,10 +207,10 @@ services as defined by OS."
(define (install-bootloader-program installer disk-installer
bootloader-package bootcfg
bootcfg-file device target)
bootcfg-file devices target)
"Return an executable store item that, upon being evaluated, will install
BOOTCFG to BOOTCFG-FILE, a target file name, on DEVICE, a file system device,
at TARGET, a mount point, and subsequently run INSTALLER from
BOOTCFG to BOOTCFG-FILE, a target file name, on DEVICES, a list of file system
devices, at TARGET, a mount point, and subsequently run INSTALLER from
BOOTLOADER-PACKAGE."
(program-file
"install-bootloader.scm"
@ -254,11 +254,17 @@ BOOTLOADER-PACKAGE."
;; The bootloader might not support installation on a
;; mounted directory using the BOOTLOADER-INSTALLER
;; procedure. In that case, fallback to installing the
;; bootloader directly on DEVICE using the
;; bootloader directly on DEVICES using the
;; BOOTLOADER-DISK-IMAGE-INSTALLER procedure.
(if #$installer
(#$installer #$bootloader-package #$device #$target)
(#$disk-installer #$bootloader-package 0 #$device)))
(for-each (lambda (device)
(#$installer #$bootloader-package device
#$target))
'#$devices)
(for-each (lambda (device)
(#$disk-installer #$bootloader-package
0 device))
'#$devices)))
(lambda args
(delete-file new-gc-root)
(match args
@ -284,7 +290,7 @@ additional configurations specified by MENU-ENTRIES can be selected."
(disk-installer (and run-installer?
(bootloader-disk-image-installer bootloader)))
(package (bootloader-package bootloader))
(device (bootloader-configuration-target configuration))
(devices (bootloader-configuration-targets configuration))
(bootcfg-file (bootloader-configuration-file bootloader)))
(eval #~(parameterize ((current-warning-port (%make-void-port "w")))
(primitive-load #$(install-bootloader-program installer
@ -292,7 +298,7 @@ additional configurations specified by MENU-ENTRIES can be selected."
package
bootcfg
bootcfg-file
device
devices
target))))))

6
tests/guix-system.sh
View File

@ -115,7 +115,7 @@ cat > "$tmpfile" <<EOF
(timezone "Europe/Paris") ; 6
(locale "en_US.UTF-8") ; 7
(bootloader (GRUB-config (target "/dev/sdX"))) ; 9
(bootloader (GRUB-config (targets (list "/dev/sdX")))) ; 9
(file-systems (cons (file-system
(device (file-system-label "root"))
(mount-point "/")
@ -168,7 +168,7 @@ OS_BASE='
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/sdX")))
(targets (list "/dev/sdX"))))
(file-systems (cons (file-system
(device (file-system-label "root"))
(mount-point "/")
@ -241,7 +241,7 @@ make_user_config ()
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/sdX")))
(targets (list "/dev/sdX"))))
(file-systems (cons (file-system
(device (file-system-label "root"))
(mount-point "/")