blob: 09326233d2156758b9188861b3296a2fc750945b (
about) (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu build hurd-boot)
#:use-module (system repl error-handling)
#:autoload (system repl repl) (start-repl)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
#:use-module (guix build utils)
#:use-module ((guix build syscalls)
#:hide (file-system-type))
#:export (make-hurd-device-nodes
boot-hurd-system))
;;; Commentary:
;;;
;;; Utility procedures useful to boot a Hurd system.
;;;
;;; Code:
;; XXX FIXME c&p from linux-boot.scm
(define (find-long-option option arguments)
"Find OPTION among ARGUMENTS, where OPTION is something like \"--load\".
Return the value associated with OPTION, or #f on failure."
(let ((opt (string-append option "=")))
(and=> (find (cut string-prefix? opt <>)
arguments)
(lambda (arg)
(substring arg (+ 1 (string-index arg #\=)))))))
;; XXX FIXME c&p from guix/utils.scm
(define (readlink* file)
"Call 'readlink' until the result is not a symlink."
(define %max-symlink-depth 50)
(let loop ((file file)
(depth 0))
(define (absolute target)
(if (absolute-file-name? target)
target
(string-append (dirname file) "/" target)))
(if (>= depth %max-symlink-depth)
file
(call-with-values
(lambda ()
(catch 'system-error
(lambda ()
(values #t (readlink file)))
(lambda args
(let ((errno (system-error-errno args)))
(if (or (= errno EINVAL))
(values #f file)
(apply throw args))))))
(lambda (success? target)
(if success?
(loop (absolute target) (+ depth 1))
file))))))
(define* (make-hurd-device-nodes #:optional (root "/"))
"Make some of the nodes needed on GNU/Hurd."
(define (scope dir)
(string-append root (if (string-suffix? "/" root) "" "/") dir))
(mkdir (scope "dev"))
(for-each (lambda (file)
(call-with-output-file (scope file)
(lambda (port)
(display file port) ;avoid hard-linking
(chmod port #o666))))
'("dev/null"
"dev/zero"
"dev/full"
"dev/random"
"dev/urandom"))
;; Don't create /dev/console, /dev/vcs, etc.: they are created by
;; console-run on first boot.
(mkdir (scope "servers"))
(for-each (lambda (file)
(call-with-output-file (scope (string-append "servers/" file))
(lambda (port)
(display file port) ;avoid hard-linking
(chmod port #o444))))
'("startup"
"exec"
"proc"
"password"
"default-pager"
"crash-dump-core"
"kill"
"suspend"))
(mkdir (scope "servers/socket"))
;; Don't create /servers/socket/1 & co: runsystem does that on first boot.
;; TODO: Set the 'gnu.translator' extended attribute for passive translator
;; settings?
)
(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';
starting the Shepherd.
XXX TODO: see linux-boot.scm:boot-system.
XXX TODO: add proper file-system checking, mounting
XXX TODO: move bits to (new?) (hurd?) (activation?) services
XXX TODO: use settrans/setxattr instead of MAKEDEV
"
(define translators
'(("/servers/crash-dump-core" ("/hurd/crash" "--dump-core"))
("/servers/crash-kill" ("/hurd/crash" "--kill"))
("/servers/crash-suspend" ("/hurd/crash" "--suspend"))
("/servers/password" ("/hurd/password"))
("/servers/socket/1" ("/hurd/pflocal"))
("/servers/socket/2" ("/hurd/pfinet" "--interface" "eth0"
"--address" "10.0.2.15" ;the default QEMU guest IP
"--netmask" "255.255.255.0"
"--gateway" "10.0.2.2"
"--ipv6" "/servers/socket/16"))))
(display "Welcome, this is GNU's early boot Guile.\n")
(display "Use '--repl' for an initrd REPL.\n\n")
(call-with-error-handling
(lambda ()
(define (translated? node)
;; Return true if a translator is installed on NODE.
(with-output-to-port (%make-void-port "w")
(lambda ()
(with-error-to-port (%make-void-port "w")
(lambda ()
(zero? (system* "showtrans" "--silent" node)))))))
(let* ((args (command-line))
(system (find-long-option "--system" args))
(to-load (find-long-option "--load" args)))
(format #t "Creating essential servers...\n")
(setenv "PATH" (string-append system "/profile/bin"
":" system "/profile/sbin"))
(for-each (match-lambda
((node command)
(unless (translated? node)
(mkdir-p (dirname node))
(apply invoke "settrans" "--create" node command))))
translators)
(format #t "Creating essential device nodes...\n")
(with-directory-excursion "/dev"
(invoke "MAKEDEV" "--devdir=/dev" "std")
(invoke "MAKEDEV" "--devdir=/dev" "vcs")
(invoke "MAKEDEV" "--devdir=/dev" "tty1""tty2" "tty3" "tty4" "tty5" "tty6")
(invoke "MAKEDEV" "--devdir=/dev" "ptyp0" "ptyp1" "ptyp2")
(invoke "MAKEDEV" "--devdir=/dev" "console"))
(false-if-exception (delete-file "/hurd"))
(let ((hurd/hurd (readlink* (string-append system "/profile/hurd"))))
(symlink hurd/hurd "/hurd"))
(format #t "Starting pager...\n")
(unless (zero? (system* "/hurd/mach-defpager"))
(format #t "FAILED...Good luck!\n"))
(cond ((member "--repl" args)
(format #t "Starting repl...\n")
(start-repl))
(to-load
(format #t "loading '~a'...\n" to-load)
(primitive-load to-load)
(format (current-error-port)
"boot program '~a' terminated, rebooting~%"
to-load)
(sleep 2)
(reboot))
(else
(display "no boot file passed via '--load'\n")
(display "entering a warm and cozy REPL\n")
(start-repl)))))
#:on-error on-error))
;;; hurd-boot.scm ends here
|
