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services: udev: Explicitly depend on (gnu build linux-boot).

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* gnu/services/base.scm (udev-shepherd-service): Wrap 'start' method in
'with-imported-modules'.
This commit is contained in:
Ludovic Courtès 2019-10-06 12:42:41 +02:00
parent 62c2217570
commit 38b1ea0434
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1 changed files with 55 additions and 52 deletions
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107
gnu/services/base.scm
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@ -1996,64 +1996,67 @@ (define udev-shepherd-service
(requirement '(root-file-system))
(documentation "Populate the /dev directory, dynamically.")
(start #~(lambda ()
(define udevd
;; 'udevd' from eudev.
#$(file-append udev "/sbin/udevd"))
(start
(with-imported-modules (source-module-closure
'((gnu build linux-boot)))
#~(lambda ()
(define udevd
;; 'udevd' from eudev.
#$(file-append udev "/sbin/udevd"))
(define (wait-for-udevd)
;; Wait until someone's listening on udevd's control
;; socket.
(let ((sock (socket AF_UNIX SOCK_SEQPACKET 0)))
(let try ()
(catch 'system-error
(lambda ()
(connect sock PF_UNIX "/run/udev/control")
(close-port sock))
(lambda args
(format #t "waiting for udevd...~%")
(usleep 500000)
(try))))))
(define (wait-for-udevd)
;; Wait until someone's listening on udevd's control
;; socket.
(let ((sock (socket AF_UNIX SOCK_SEQPACKET 0)))
(let try ()
(catch 'system-error
(lambda ()
(connect sock PF_UNIX "/run/udev/control")
(close-port sock))
(lambda args
(format #t "waiting for udevd...~%")
(usleep 500000)
(try))))))
;; Allow udev to find the modules.
(setenv "LINUX_MODULE_DIRECTORY"
"/run/booted-system/kernel/lib/modules")
;; Allow udev to find the modules.
(setenv "LINUX_MODULE_DIRECTORY"
"/run/booted-system/kernel/lib/modules")
;; The first one is for udev, the second one for eudev.
(setenv "UDEV_CONFIG_FILE" #$udev.conf)
(setenv "EUDEV_RULES_DIRECTORY"
#$(file-append rules "/lib/udev/rules.d"))
;; The first one is for udev, the second one for eudev.
(setenv "UDEV_CONFIG_FILE" #$udev.conf)
(setenv "EUDEV_RULES_DIRECTORY"
#$(file-append rules "/lib/udev/rules.d"))
(let* ((kernel-release
(utsname:release (uname)))
(linux-module-directory
(getenv "LINUX_MODULE_DIRECTORY"))
(directory
(string-append linux-module-directory "/"
kernel-release))
(old-umask (umask #o022)))
;; If we're in a container, DIRECTORY might not exist,
;; for instance because the host runs a different
;; kernel. In that case, skip it; we'll just miss a few
;; nodes like /dev/fuse.
(when (file-exists? directory)
(make-static-device-nodes directory))
(umask old-umask))
(let* ((kernel-release
(utsname:release (uname)))
(linux-module-directory
(getenv "LINUX_MODULE_DIRECTORY"))
(directory
(string-append linux-module-directory "/"
kernel-release))
(old-umask (umask #o022)))
;; If we're in a container, DIRECTORY might not exist,
;; for instance because the host runs a different
;; kernel. In that case, skip it; we'll just miss a few
;; nodes like /dev/fuse.
(when (file-exists? directory)
(make-static-device-nodes directory))
(umask old-umask))
(let ((pid (fork+exec-command (list udevd))))
;; Wait until udevd is up and running. This appears to
;; be needed so that the events triggered below are
;; actually handled.
(wait-for-udevd)
(let ((pid (fork+exec-command (list udevd))))
;; Wait until udevd is up and running. This appears to
;; be needed so that the events triggered below are
;; actually handled.
(wait-for-udevd)
;; Trigger device node creation.
(system* #$(file-append udev "/bin/udevadm")
"trigger" "--action=add")
;; Trigger device node creation.
(system* #$(file-append udev "/bin/udevadm")
"trigger" "--action=add")
;; Wait for things to settle down.
(system* #$(file-append udev "/bin/udevadm")
"settle")
pid)))
;; Wait for things to settle down.
(system* #$(file-append udev "/bin/udevadm")
"settle")
pid))))
(stop #~(make-kill-destructor))
;; When halting the system, 'udev' is actually killed by
@ -2061,7 +2064,7 @@ (define (wait-for-udevd)
;; Thus, make sure it is not respawned.
(respawn? #f)
;; We need additional modules.
(modules `((gnu build linux-boot)
(modules `((gnu build linux-boot) ;'make-static-device-nodes'
,@%default-modules))
(actions (list (shepherd-action