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system: images: Add wsl2 module.
* gnu/system/images/wsl2.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi ("System Images"): Document it.
Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
This commit is contained in:
Alex Griffin
Mathieu Othacehe
parent
233cf9f036
commit
c8112f3bd9
3 changed files with 185 additions and 0 deletions
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@ -41476,6 +41476,8 @@ one or multiple partitions.
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@item @code{tarball}, a tar.gz image archive.
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@item @code{wsl2}, a WSL2 image.
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@end itemize
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@item @code{platform} (default: @code{#false})
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@ -41842,6 +41844,17 @@ Build an image similar to the one built by the @code{hurd-image-type}
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but with the @code{format} set to @code{'compressed-qcow2}.
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@end defvr
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@defvr {Scheme Variable} wsl2-image-type
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Build an image for the @acronym{WSL2, Windows Subsystem for Linux 2}.
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It can be imported by running:
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@example
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wsl --import Guix ./guix ./wsl2-image.tar.gz
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wsl -d Guix
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@end example
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@end defvr
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So, if we get back to the @code{guix system image} command taking an
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@code{operating-system} declaration as argument. By default, the
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@code{efi-raw-image-type} is used to turn the provided
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@ -53,6 +53,7 @@
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# Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
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# Copyright © 2022 muradm <mail@muradm.net>
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# Copyright © 2022 Hilton Chain <hako@ultrarare.space>
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# Copyright © 2022 Alex Griffin <a@ajgrf.com>
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#
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# This file is part of GNU Guix.
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#
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@ -718,6 +719,7 @@ GNU_SYSTEM_MODULES = \
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%D%/system/images/pine64.scm \
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%D%/system/images/pinebook-pro.scm \
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%D%/system/images/rock64.scm \
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%D%/system/images/wsl2.scm \
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\
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%D%/machine.scm \
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\
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170
gnu/system/images/wsl2.scm
Normal file
170
gnu/system/images/wsl2.scm
Normal file
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@ -0,0 +1,170 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2022 Alex Griffin <a@ajgrf.com>
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;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu system images wsl2)
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#:use-module (gnu bootloader)
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#:use-module (gnu image)
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#:use-module (gnu packages admin)
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#:use-module (gnu packages base)
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#:use-module (gnu packages bash)
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#:use-module (gnu packages guile)
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#:use-module (gnu packages linux)
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#:use-module (gnu services)
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#:use-module (gnu services base)
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#:use-module (gnu system)
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#:use-module (gnu system image)
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#:use-module (gnu system shadow)
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#:use-module (guix build-system trivial)
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#:use-module (guix gexp)
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#:use-module (guix packages)
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#:export (wsl-boot-program
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wsl-os
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wsl2-image))
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(define (wsl-boot-program user)
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"Program that runs the system boot script, then starts a login shell as
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USER."
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(program-file
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"wsl-boot-program"
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(with-imported-modules '((guix build syscalls))
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#~(begin
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(use-modules (guix build syscalls))
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(unless (file-exists? "/run/current-system")
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(let ((shepherd-socket "/var/run/shepherd/socket"))
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;; Clean up this file so we can wait for it later.
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(when (file-exists? shepherd-socket)
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(delete-file shepherd-socket))
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;; Child process boots the system and is replaced by shepherd.
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(when (zero? (primitive-fork))
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(let* ((system-generation
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(readlink "/var/guix/profiles/system"))
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(system (readlink
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(string-append
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(if (absolute-file-name? system-generation)
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""
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"/var/guix/profiles/")
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system-generation))))
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(setenv "GUIX_NEW_SYSTEM" system)
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(execl #$(file-append guile-3.0 "/bin/guile")
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"guile"
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"--no-auto-compile"
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(string-append system "/boot"))))
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;; Parent process waits for shepherd before continuing.
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(while (not (file-exists? shepherd-socket))
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(sleep 1))))
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(let* ((pw (getpw #$user))
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(shell (passwd:shell pw))
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(sudo #+(file-append sudo "/bin/sudo"))
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(args (cdr (command-line))))
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;; Save the value of $PATH set by WSL. Useful for finding
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;; Windows binaries to run with WSL's binfmt interop.
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(setenv "WSLPATH" (getenv "PATH"))
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;; /run is mounted with the nosuid flag by WSL. This prevents
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;; running the /run/setuid-programs. Remount it without this flag
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;; as a workaround. See:
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;; https://github.com/microsoft/WSL/issues/8716.
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(mount #f "/run" #f
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MS_REMOUNT
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#:update-mtab? #f)
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;; Start login shell as user.
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(apply execl sudo "sudo"
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"--preserve-env=WSLPATH"
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"-u" #$user
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"--"
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shell "-l" args))))))
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(define dummy-package
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(package
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(name "dummy")
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(version "0")
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(source #f)
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(build-system trivial-build-system)
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(arguments
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`(#:modules ((guix build utils))
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#:target #f
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#:builder (begin
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(use-modules (guix build utils))
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(let* ((out (assoc-ref %outputs "out"))
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(dummy (string-append out "/dummy")))
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(mkdir-p out)
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(call-with-output-file dummy
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(const #t))))))
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(home-page #f)
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(synopsis #f)
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(description #f)
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(license #f)))
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(define dummy-bootloader
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(bootloader
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(name 'dummy-bootloader)
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(package dummy-package)
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(configuration-file "/dev/null")
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(configuration-file-generator
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(lambda (. _rest)
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(plain-file "dummy-bootloader" "")))
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(installer #~(const #t))))
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(define dummy-kernel dummy-package)
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(define (dummy-initrd . _rest)
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(plain-file "dummy-initrd" ""))
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(define-public wsl-os
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(operating-system
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(host-name "gnu")
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(timezone "Etc/UTC")
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(bootloader
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(bootloader-configuration
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(bootloader dummy-bootloader)))
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(kernel dummy-kernel)
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(initrd dummy-initrd)
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(initrd-modules '())
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(firmware '())
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(file-systems '())
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(users (cons* (user-account
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(name "guest")
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(group "users")
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(supplementary-groups '("wheel")) ; allow use of sudo
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(password "")
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(comment "Guest of GNU"))
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(user-account
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(inherit %root-account)
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(shell (wsl-boot-program "guest")))
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%base-user-accounts))
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(services
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(list
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(service guix-service-type)
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(service special-files-service-type
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`(("/bin/sh" ,(file-append bash "/bin/bash"))
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("/bin/mount" ,(file-append util-linux "/bin/mount"))
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("/usr/bin/env" ,(file-append coreutils "/bin/env"))))))))
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(define wsl2-image
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(image
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(inherit
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(os->image wsl-os
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#:type wsl2-image-type))
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(name 'wsl2-image)))
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wsl2-image
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