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Resent-From: Janneke Nieuwenhuizen Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Wed, 30 Oct 2024 14:34:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 73927 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: 73927@debbugs.gnu.org Received: via spool by 73927-submit@debbugs.gnu.org id=B73927.173029881615109 (code B ref 73927); Wed, 30 Oct 2024 14:34:03 +0000 Received: (at 73927) by debbugs.gnu.org; 30 Oct 2024 14:33:36 +0000 Received: from localhost ([127.0.0.1]:35319 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1t69lO-0003vR-2T for submit@debbugs.gnu.org; Wed, 30 Oct 2024 10:33:35 -0400 Received: from eggs.gnu.org ([209.51.188.92]:36116) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1t69lB-0003tl-9g for 73927@debbugs.gnu.org; Wed, 30 Oct 2024 10:33:22 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t69j0-0003Kp-Am; Wed, 30 Oct 2024 10:31:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:References:In-Reply-To:Date:Subject:To: From; bh=PCHfJ+x7JxS1mpKlA8fulki7WawwnG8104M1/8w/USo=; b=knfbd/v34ADpcQYrPT2M xQtLem9KnpsHr2mvN+eRG91PC+Bz4twVRb+bUb6wAhyjr+haNTjx+kWXT7yLMZM3gAQbEmFpcsdfk j1kggqAg7zy9n+L8BJTGfzmpzFwQ3aI2n9xerBUn3B5PJOfaK3P7L0U4W7CWAz1GM+yE0L6wJl6rl /OI4ShcOVcF2X+EA/T1wKUNzYDhu6IWXhC+HOG6anQMeOKd+aXl0X4n4fHoH4j7znYO1htDqsCevI 0Iu8aTbcm/9VUcqTdlEtfcVPjGnL3jMDFBIP/lkjZacjOVEO8m1CUI/7My5JLD+rVThMxTLpy1KlA X8GN2FCSTFBy/g==; From: Janneke Nieuwenhuizen Date: Wed, 30 Oct 2024 15:30:33 +0100 Message-ID: <3952b98b312119adb5456f255a3c6b0bf7294f95.1730296564.git.janneke@gnu.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Scanner: mx11.migadu.com X-Migadu-Spam-Score: 0.84 X-Spam-Score: 0.84 X-Migadu-Queue-Id: 41F0E78478 X-TUID: ofS86R+E34CB This supports using another than the default DISK0 PART1 and using LABEL or UUID as root file-system specifier. It still defaults to DISK0 PART1 if the file-system cannot be found, i.e., lives only at the build side: A virtual machine/childhurd build. * gnu/build/file-systems.scm (%hurd-device-spec-regexp, %device-spec-regexp): New variables. (device-name->hurd-device-name, hurd-device-name->device-name, device-spec->device, device-spec->device-name): Use them in new procedures. * gnu/bootloader/grub.scm (make-grub-configuration): Use them to remove hardcoded partition number (root-index 1). Change-Id: I49fa93dacc09883dfb4d695402c5eac2e0e17286 --- gnu/bootloader/grub.scm | 19 +++++++++---- gnu/build/file-systems.scm | 58 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 71 insertions(+), 6 deletions(-) diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm index 2723eda5f4..ef516b1e13 100644 --- a/gnu/bootloader/grub.scm +++ b/gnu/bootloader/grub.scm @@ -3,7 +3,7 @@ ;;; Copyright © 2016 Chris Marusich ;;; Copyright © 2017 Leo Famulari ;;; Copyright © 2017, 2020 Mathieu Othacehe -;;; Copyright © 2019, 2020, 2023 Janneke Nieuwenhuizen +;;; Copyright © 2019, 2020, 2023, 2024 Janneke Nieuwenhuizen ;;; Copyright © 2019, 2020 Miguel Ángel Arruga Vivas ;;; Copyright © 2020 Maxim Cournoyer ;;; Copyright © 2020 Stefan @@ -34,6 +34,7 @@ (define-module (gnu bootloader grub) #:use-module (guix gexp) #:use-module (gnu artwork) #:use-module (gnu bootloader) + #:use-module (gnu build file-systems) #:use-module (gnu system uuid) #:use-module (gnu system file-systems) #:use-module (gnu system keyboard) @@ -45,6 +46,7 @@ (define-module (gnu bootloader grub) #:use-module (ice-9 regex) #:use-module (srfi srfi-1) #:use-module (srfi srfi-2) + #:use-module (srfi srfi-26) #:export (grub-theme grub-theme? grub-theme-image @@ -355,6 +357,11 @@ (define (grub-root-search device file) ((or #f (? string?)) #~(format #f "search --file --set ~a" #$file))))) +(define* (device->hurd-device-name device-spec #:key (disk "w")) + "Return DEVICE as a Hurd name spec: part:PART-NUMBER:device:DISKdDISK-INDEX." + (let ((device-name (canonicalize-device-spec device-spec))) + (device-name->hurd-device-name device-name #:disk disk))) + (define* (make-grub-configuration grub config entries #:key (locale #f) @@ -413,16 +420,16 @@ (define* (make-grub-configuration grub config entries ;; IDE driver ("hdX") and those understood by rumpdisk ("wdX" ;; in the "noide" case). (disk (if (member "noide" arguments) "w" "h")) - (modules (menu-entry-multiboot-modules entry)) - (root-index 1)) ; XXX EFI will need root-index 2 + (device-spec (and=> device file-system-device->string)) + (device-name (and=> device-spec device-spec->device-name)) + (modules (menu-entry-multiboot-modules entry))) #~(format port " menuentry ~s { - multiboot ~a root=part:~a:device:~ad0~a~a + multiboot ~a root=~a~a~a }~%" #$label #$kernel - #$root-index - #$disk + #$(device-name->hurd-device-name device-name #:disk disk) (string-join (list #$@arguments) " " 'prefix) (string-join (map string-join '#$modules) "\n module " 'prefix)))) diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index 41e1c9e282..6fd9f95093 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -9,6 +9,7 @@ ;;; Copyright © 2022 Oleg Pykhalov ;;; Copyright © 2024 Nicolas Graves ;;; Copyright © 2024 Richard Sent +;;; Copyright © 2024 Janneke Nieuwenhuizen ;;; ;;; This file is part of GNU Guix. ;;; @@ -53,6 +54,11 @@ (define-module (gnu build file-systems) find-partition-by-luks-uuid canonicalize-device-spec + device-name->hurd-device-name + device-spec->device + device-spec->device-name + hurd-device-name->device-name + read-partition-label read-partition-uuid read-luks-partition-uuid @@ -1431,4 +1437,56 @@ (define* (mount-file-system fs #:key (root "/root") (or (file-system-mount-may-fail? fs) (apply throw args)))))) +(define %device-name-regexp "/dev/[hsvw]d([abcd])([0-9]*)") +(define %hurd-device-name-regexp "part:([0-9]*):device:[hw]d([0-9]*)") + +(define (device-spec->device-name device-spec) + "Return DEVICE-SPEC as a Linux /dev/XdYZ device name, also catering for uuid +or label." + (cond ((string-match %device-name-regexp device-spec) + device-spec) + ((string-match %hurd-device-name-regexp device-spec) + (hurd-device-name->device-name device-spec)) + ((string->uuid device-spec) + => + (lambda (uuid) (false-if-exception (find-partition-by-uuid uuid)))) + (else + (false-if-exception (find-partition-by-label device-spec))))) + +(define* (device-name->hurd-device-name device-name #:key (disk "w")) + "Return DEVICE-NAME as a Hurd device name: + part:PART-NUMBER:device:DISKdDISK-INDEX +Default to part:1:device:DISKd0 if partition cannot be found." + (let* ((m (and=> device-name (cute string-match %device-name-regexp <>))) + (disk-char (and m (and=> (match:substring m 1) + (compose car string->list)))) + (disk-index (or (and disk-char + (- (char->integer disk-char) (char->integer #\a))) + 0)) + (partition-number (or (and m (and=> (match:substring m 2) + string->number)) + 1))) + (format #f "part:~a:device:~ad~a" partition-number disk disk-index))) + +(define* (hurd-device-name->device-name device-name #:key (disk "s")) + (let* ((m (and=> device-name (cute string-match %hurd-device-name-regexp <>))) + (disk-index-string (and=> m (cute match:substring <> 2))) + (disk-index (or (and=> disk-index-string string->number) + 0)) + (disk-index-char (integer->char (+ disk-index (char->integer #\a)))) + (partition-string (and=> m (cute match:substring <> 1))) + (partition-number (or (and=> partition-string string->number) + 1))) + (format #f "/dev/~ad~a~a" disk disk-index-char partition-number))) + +(define (device-spec->device device-spec) + "Return DEVICE-SPEC as UUID, FILE-SYSTEM-LABEL, or DEVICE-SPEC." + (cond ((and=> (string->uuid device-spec) + find-partition-by-uuid) + (string->uuid device-spec)) + ((find-partition-by-label device-spec) + (file-system-label device-spec)) + (else + device-spec))) + ;;; file-systems.scm ends here -- Janneke Nieuwenhuizen | GNU LilyPond https://LilyPond.org Freelance IT https://www.JoyOfSource.com | Avatar® https://AvatarAcademy.com