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bug#40998: [PATCH 3/4] initrd: Use non-hyphenated kernel command-line pa
|
From: |
Maxim Cournoyer |
|
Subject: |
bug#40998: [PATCH 3/4] initrd: Use non-hyphenated kernel command-line parameter names. |
|
Date: |
Mon, 28 Feb 2022 17:50:45 -0500 |
This is to make it less surprising, given the common convention sets forth by
the kernel Linux command-line parameters.
* gnu/build/linux-boot.scm (boot-system): Rename '--load', '--repl', '--root'
and '--system' to 'gnu.load', 'gnu.repl', 'root' and 'gnu.system',
respectively. Adjust doc.
(find-long-option): Adjust doc.
* gnu/installer/parted.scm (installer-root-partition-path): Adjust accordingly.
* gnu/system.scm (bootable-kernel-arguments): Add a VERSION argument and
update doc. Use VERSION to conditionally return old style vs new style initrd
arguments.
(%boot-parameters-version): Increment to 1.
(operating-system-boot-parameters): Adjust doc.
(operating-system-boot-parameters-file): Likewise.
* gnu/system/linux-initrd.scm (raw-initrd, base-initrd): Likewise.
* doc/guix.texi: Adjust doc.
* gnu/build/activation.scm (boot-time-system): Adjust accordingly.
* gnu/build/hurd-boot.scm (boot-hurd-system): Likewise.
* gnu/packages/commencement.scm (%final-inputs-riscv64): Adjust comment.
---
doc/guix.texi | 12 ++++-----
gnu/build/activation.scm | 4 +--
gnu/build/hurd-boot.scm | 12 ++++-----
gnu/build/linux-boot.scm | 31 ++++++++++++-----------
gnu/installer/parted.scm | 2 +-
gnu/machine/ssh.scm | 5 ++--
gnu/packages/commencement.scm | 4 +--
gnu/system.scm | 47 ++++++++++++++++++++++-------------
gnu/system/linux-initrd.scm | 4 +--
9 files changed, 68 insertions(+), 53 deletions(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 1e8b23ad7e..ce44eb3b47 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -34959,7 +34959,7 @@ honors several options passed on the Linux kernel
command line
@code{-append} option of QEMU), notably:
@table @code
-@item --load=@var{boot}
+@item gnu.load=@var{boot}
Tell the initial RAM disk to load @var{boot}, a file containing a Scheme
program, once it has mounted the root file system.
@@ -34967,7 +34967,7 @@ Guix uses this option to yield control to a boot
program that runs the
service activation programs and then spawns the GNU@tie{}Shepherd, the
initialization system.
-@item --root=@var{root}
+@item root=@var{root}
Mount @var{root} as the root file system. @var{root} can be a device
name like @code{/dev/sda1}, a file system label, or a file system UUID.
When unspecified, the device name from the root file system of the
@@ -34992,7 +34992,7 @@ or @code{preen} to repair problems considered safe to
repair automatically.
@code{preen} is the default if this option is not present or if @var{level}
is not one of the above.
-@item --system=@var{system}
+@item gnu.system=@var{system}
Have @file{/run/booted-system} and @file{/run/current-system} point to
@var{system}.
@@ -35004,7 +35004,7 @@ Instruct the initial RAM disk as well as the
@command{modprobe} command
must be a comma-separated list of module names---e.g.,
@code{usbkbd,9pnet}.
-@item --repl
+@item gnu.repl
Start a read-eval-print loop (REPL) from the initial RAM disk before it
tries to load kernel modules and to mount the root file system. Our
marketing team calls it @dfn{boot-to-Guile}. The Schemer in you will
@@ -35025,7 +35025,7 @@ here is how to use it and customize it further.
[#:helper-packages '()] [#:qemu-networking? #f] [#:volatile-root? #f]
Return a derivation that builds a raw initrd. @var{file-systems} is
a list of file systems to be mounted by the initrd, possibly in addition to
-the root file system specified on the kernel command line via @option{--root}.
+the root file system specified on the kernel command line via @option{root}.
@var{linux-modules} is a list of kernel modules to be loaded at boot time.
@var{mapped-devices} is a list of device mappings to realize before
@var{file-systems} are mounted (@pxref{Mapped Devices}).
@@ -35055,7 +35055,7 @@ to it are lost.
Return as a file-like object a generic initrd, with kernel
modules taken from @var{linux}. @var{file-systems} is a list of file-systems
to be
mounted by the initrd, possibly in addition to the root file system specified
-on the kernel command line via @option{--root}. @var{mapped-devices} is a
list of device
+on the kernel command line via @option{root}. @var{mapped-devices} is a list
of device
mappings to realize before @var{file-systems} are mounted.
When true, @var{keyboard-layout} is a @code{<keyboard-layout>} record denoting
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm
index 9f6126023c..10c9045740 100644
--- a/gnu/build/activation.scm
+++ b/gnu/build/activation.scm
@@ -389,8 +389,8 @@ (define %current-system
"/run/current-system")
(define (boot-time-system)
- "Return the '--system' argument passed on the kernel command line."
- (find-long-option "--system" (if (string-contains %host-type "linux-gnu")
+ "Return the 'gnu.system' argument passed on the kernel command line."
+ (find-long-option "gnu.system" (if (string-contains %host-type "linux-gnu")
(linux-command-line)
(command-line))))
diff --git a/gnu/build/hurd-boot.scm b/gnu/build/hurd-boot.scm
index ac36bd17d4..ad3c50d61e 100644
--- a/gnu/build/hurd-boot.scm
+++ b/gnu/build/hurd-boot.scm
@@ -254,7 +254,7 @@ (define* (boot-hurd-system #:key (on-error 'debug))
"This procedure is meant to be called from an early RC script.
Install the relevant passive translators on the first boot. Then, run system
-activation by using the kernel command-line options '--system' and '--load';
+activation by using the kernel command-line options 'gnu.system' and
'gnu.load';
starting the Shepherd.
XXX TODO: see linux-boot.scm:boot-system.
@@ -265,14 +265,14 @@ (define* (boot-hurd-system #:key (on-error 'debug))
"
(display "Welcome, this is GNU's early boot Guile.\n")
- (display "Use '--repl' for an initrd REPL.\n\n")
+ (display "Use 'gnu.repl' for an initrd REPL.\n\n")
(call-with-error-handling
(lambda ()
(let* ((args (command-line))
- (system (find-long-option "--system" args))
- (to-load (find-long-option "--load" args)))
+ (system (find-long-option "gnu.system" args))
+ (to-load (find-long-option "gnu.load" args)))
(format #t "Setting-up essential translators...\n")
(setenv "PATH" (string-append system "/profile/bin"))
@@ -286,7 +286,7 @@ (define* (boot-hurd-system #:key (on-error 'debug))
(unless (zero? (system* "/hurd/mach-defpager"))
(format #t "FAILED...Good luck!\n"))
- (cond ((member "--repl" args)
+ (cond ((member "gnu.repl" args)
(format #t "Starting repl...\n")
(start-repl))
(to-load
@@ -298,7 +298,7 @@ (define* (boot-hurd-system #:key (on-error 'debug))
(sleep 2)
(reboot))
(else
- (display "no boot file passed via '--load'\n")
+ (display "no boot file passed via 'gnu.load'\n")
(display "entering a warm and cozy REPL\n")
(start-repl)))))
#:on-error on-error))
diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm
index 0ae316849e..cfa1ab2fcb 100644
--- a/gnu/build/linux-boot.scm
+++ b/gnu/build/linux-boot.scm
@@ -3,6 +3,7 @@
;;; Copyright © 2016, 2017, 2019–2021 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Guillaume Le Vaillant <glv@posteo.net>
+;;; Copyright © 2020, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -93,7 +94,7 @@ (define (linux-command-line)
get-string-all)))
(define (find-long-option option arguments)
- "Find OPTION among ARGUMENTS, where OPTION is something like \"--load\".
+ "Find OPTION among ARGUMENTS, where OPTION is something like \"gnu.load\".
Return the value associated with OPTION, or #f on failure."
(let ((opt (string-append option "=")))
(and=> (find (cut string-prefix? opt <>)
@@ -499,12 +500,12 @@ (define* (boot-system #:key
KEYMAP-FILE is true), then setting up QEMU guest networking if
QEMU-GUEST-NETWORKING? is true, calling PRE-MOUNT, 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'. It
-also honors a subset of the documented Linux kernel command-line parameters
-such as 'fsck.mode', 'resume' and 'rootdelay'.
+supports kernel command-line parameters 'gnu.load' and 'gnu.repl'. It also
+honors a subset of the Linux kernel command-line parameters such as
+'fsck.mode', 'resume', 'root' and 'rootdelay'.
-Mount the root file system, specified by the '--root' command-line argument,
-if any.
+Mount the root file system, specified by the 'root' command-line argument, if
+any.
MOUNTS must be a list of <file-system> objects.
@@ -517,25 +518,25 @@ (define (root-mount-point? fs)
(string=? (file-system-mount-point fs) "/"))
(define (device-string->file-system-device device-string)
- ;; The "--root=SPEC" kernel command-line option always provides a
- ;; string, but the string can represent a device, an nfs-root, a UUID, or a
- ;; label. So check for all four.
+ ;; The "root=SPEC" kernel command-line option always provides a string,
+ ;; but the string can represent a device, an nfs-root, a UUID, or a label.
+ ;; So check for all four.
(cond ((string-prefix? "/" device-string) device-string)
((string-contains device-string ":/") device-string) ; nfs-root
((uuid device-string) => identity)
(else (file-system-label device-string))))
(display "Welcome, this is GNU's early boot Guile.\n")
- (display "Use '--repl' for an initrd REPL.\n\n")
+ (display "Use 'gnu.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))
- ;; If present, ‘--root’ on the kernel command line takes
precedence
+ (to-load (find-long-option "gnu.load" args))
+ ;; If present, ‘root’ on the kernel command line takes precedence
;; over the ‘device’ field of the root <file-system> record.
- (root-device (and=> (find-long-option "--root" args)
+ (root-device (and=> (find-long-option "root" args)
device-string->file-system-device))
(root-fs (or (find root-mount-point? mounts)
;; Fall back to fictitious defaults.
@@ -564,7 +565,7 @@ (define (repair fs)
(_ 'preen))
(file-system-repair fs))))
- (when (member "--repl" args)
+ (when (member "gnu.repl" args)
(start-repl))
(display "loading kernel modules...\n")
@@ -652,7 +653,7 @@ (define (repair fs)
(sleep 2)
(reboot))
(begin
- (display "no boot file passed via '--load'\n")
+ (display "no boot file passed via 'gnu.load'\n")
(display "entering a warm and cozy REPL\n")
(start-repl)))))
#:on-error on-error))
diff --git a/gnu/installer/parted.scm b/gnu/installer/parted.scm
index e33ef5f8fd..94ef9b42bc 100644
--- a/gnu/installer/parted.scm
+++ b/gnu/installer/parted.scm
@@ -348,7 +348,7 @@ (define (remove-logical-devices)
(define (installer-root-partition-path)
"Return the root partition path, or #f if it could not be detected."
(let* ((cmdline (linux-command-line))
- (root (find-long-option "--root" cmdline)))
+ (root (find-long-option "root" cmdline)))
(and root
(or (and (access? root F_OK) root)
(find-partition-by-label root)
diff --git a/gnu/machine/ssh.scm b/gnu/machine/ssh.scm
index 0dc8933c82..550c989c34 100644
--- a/gnu/machine/ssh.scm
+++ b/gnu/machine/ssh.scm
@@ -422,7 +422,8 @@ (define (read-file path)
(let* ((params (call-with-input-string serialized-params
read-boot-parameters))
(root (boot-parameters-root-device params))
- (label (boot-parameters-label params)))
+ (label (boot-parameters-label params))
+ (version (boot-parameters-version params)))
(boot-parameters
(inherit params)
(label
@@ -433,7 +434,7 @@ (define (read-file path)
"~Y-~m-~d ~H:~M"))
")"))
(kernel-arguments
- (append (bootable-kernel-arguments system-path root)
+ (append (bootable-kernel-arguments system-path root version)
(boot-parameters-kernel-arguments params))))))))
generations))))
diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index cdc9c1d621..9b495d8d84 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -3740,10 +3740,10 @@ (define-public %final-inputs
(define-public %final-inputs-riscv64
;; This is similar to the added (list gcc "lib") elsewhere in this file, but
;; due to how (%current-system) is re-defined when performing builds with the
- ;; '--system' flag, %final-inputs is too early in the evaulation pipeline to
+ ;; 'gnu.system' flag, %final-inputs is too early in the evaulation pipeline
to
;; correctly identify the system for which a derivation will be built. Thus,
;; since (%current-system) is re-determined by (guix build-system gnu) after
- ;; loading %final-inputs but before taking into account the '--system' flag,
+ ;; loading %final-inputs but before taking into account the 'gnu.system'
flag,
;; the test for (target-riscv64?) needs to be in (guix build-system gnu),
;; with %final-inputs-riscv64 already available at the same time that
;; %final-inputs is available.
diff --git a/gnu/system.scm b/gnu/system.scm
index c6c46343cc..91d7e48452 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -187,16 +187,23 @@ (define-module (gnu system)
;;;
;;; Code:
-(define (bootable-kernel-arguments system root-device)
- "Return a list of kernel arguments (gexps) to boot SYSTEM from ROOT-DEVICE."
- (list (string-append "--root="
+(define* (bootable-kernel-arguments system root-device version)
+ "Return a list of kernel arguments (gexps) to boot SYSTEM from ROOT-DEVICE.
+VERSION is the target version of the boot-parameters record."
+ ;; If the version is newer than 0, we use the new style initrd parameter
+ ;; names, otherwise we use the legacy ones. This is to maintain backward
+ ;; compatibility when producing bootloader configurations for older
+ ;; generations.
+ (define version>0? (> version 0))
+ (list (string-append (if version>0? "root=" "--root=")
;; Note: Always use the DCE format because that's what
- ;; (gnu build linux-boot) expects for the '--root'
+ ;; (gnu build linux-boot) expects for the 'root'
;; kernel command-line option.
(file-system-device->string root-device
#:uuid-type 'dce))
- #~(string-append "--system=" #$system)
- #~(string-append "--load=" #$system "/boot")))
+ #~(string-append (if #$version>0? "gnu.system=" "--system=") #$system)
+ #~(string-append (if #$version>0? "gnu.load=" "--load=")
+ #$system "/boot")))
;; System-wide configuration.
;; TODO: Add per-field docstrings/stexi.
@@ -286,10 +293,12 @@ (define-record-type* <operating-system> operating-system
source-properties->location))
(innate)))
-(define (operating-system-kernel-arguments os root-device)
- "Return all the kernel arguments, including the ones not specified
-directly by the user."
- (append (bootable-kernel-arguments os root-device)
+(define* (operating-system-kernel-arguments
+ os root-device #:key (version %boot-parameters-version))
+ "Return all the kernel arguments, including the ones not specified directly
+by the user. VERSION should match that of the target <boot-parameter> record
+object that will contain the kernel parameters."
+ (append (bootable-kernel-arguments os root-device version)
(operating-system-user-kernel-arguments os)))
@@ -297,7 +306,10 @@ (define (operating-system-kernel-arguments os root-device)
;;; Boot parameters
;;;
-(define %boot-parameters-version 0)
+;;; Version 1 was introduced early 2022 to mark the departure from long option
+;;; names such as '--load' to the more conventional initrd option names like
+;;; 'gnu.load'.
+(define %boot-parameters-version 1)
(define-record-type* <boot-parameters>
boot-parameters make-boot-parameters boot-parameters?
@@ -478,10 +490,11 @@ (define (read-boot-parameters-file system)
The object has its kernel-arguments extended in order to make it bootable."
(let* ((file (string-append system "/parameters"))
(params (call-with-input-file file read-boot-parameters))
- (root (boot-parameters-root-device params)))
+ (root (boot-parameters-root-device params))
+ (version (boot-parameters-version params)))
(boot-parameters
(inherit params)
- (kernel-arguments (append (bootable-kernel-arguments system root)
+ (kernel-arguments (append (bootable-kernel-arguments system root version)
(boot-parameters-kernel-arguments params))))))
(define (boot-parameters->menu-entry conf)
@@ -1452,10 +1465,10 @@ (define (hurd-multiboot-modules os)
(define* (operating-system-boot-parameters os root-device
#:key system-kernel-arguments?)
"Return a monadic <boot-parameters> record that describes the boot
-parameters of OS. When SYSTEM-KERNEL-ARGUMENTS? is true, add kernel arguments
-such as '--root' and '--load' to <boot-parameters>. The
-SYSTEM-KERNEL-ARGUMENTS? should only be used in necessity, as the '--load' and
-'--system' values are self-referential (they refer to the system), thus
+parameters of OS. When SYSTEM-KERNEL-ARGUMENTS? is true, add the kernel
+arguments 'root', 'gnu.load' and 'gnu.system' to <boot-parameters>. The
+SYSTEM-KERNEL-ARGUMENTS? should only be used in necessity, as the 'gnu.load'
+and 'gnu.system' values are self-referential (they refer to the system), thus
susceptible to introduce a cyclic dependency."
(let* ((initrd (and (not (operating-system-hurd os))
(operating-system-initrd-file os)))
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index 329cd38cd6..4c4c78e444 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -181,7 +181,7 @@ (define* (raw-initrd file-systems
"Return as a file-like object a raw initrd, with kernel
modules taken from LINUX. FILE-SYSTEMS is a list of file-systems to be
mounted by the initrd, possibly in addition to the root file system specified
-on the kernel command line via '--root'. LINUX-MODULES is a list of kernel
+on the kernel command line via 'root'. LINUX-MODULES is a list of kernel
modules to be loaded at boot time. MAPPED-DEVICES is a list of device
mappings to realize before FILE-SYSTEMS are mounted.
HELPER-PACKAGES is a list of packages to be copied in the initrd. It may
include
@@ -375,7 +375,7 @@ (define* (base-initrd file-systems
"Return as a file-like object a generic initrd, with kernel
modules taken from LINUX. FILE-SYSTEMS is a list of file-systems to be
mounted by the initrd, possibly in addition to the root file system specified
-on the kernel command line via '--root'. MAPPED-DEVICES is a list of device
+on the kernel command line via 'root'. MAPPED-DEVICES is a list of device
mappings to realize before FILE-SYSTEMS are mounted.
When true, KEYBOARD-LAYOUT is a <keyboard-layout> record denoting the desired
--
2.34.0