summaryrefslogtreecommitdiffstats
path: root/scripts/lib/wic/plugins/source/bootimg-efi.py
blob: 83a7e189ed91dc5d4734d9fa0241eb72c6896ab3 (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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
# Copyright (c) 2014, Intel Corporation.
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# DESCRIPTION
# This implements the 'bootimg-efi' source plugin class for 'wic'
#
# AUTHORS
# Tom Zanussi <tom.zanussi (at] linux.intel.com>
#

import logging
import os
import shutil

from wic import WicError
from wic.engine import get_custom_config
from wic.pluginbase import SourcePlugin
from wic.misc import (exec_cmd, exec_native_cmd,
                      get_bitbake_var, BOOTDD_EXTRA_SPACE)

logger = logging.getLogger('wic')

class BootimgEFIPlugin(SourcePlugin):
    """
    Create EFI boot partition.
    This plugin supports GRUB 2 and systemd-boot bootloaders.
    """

    name = 'bootimg-efi'

    @classmethod
    def do_configure_grubefi(cls, hdddir, creator, cr_workdir, source_params):
        """
        Create loader-specific (grub-efi) config
        """
        configfile = creator.ks.bootloader.configfile
        custom_cfg = None
        if configfile:
            custom_cfg = get_custom_config(configfile)
            if custom_cfg:
                # Use a custom configuration for grub
                grubefi_conf = custom_cfg
                logger.debug("Using custom configuration file "
                             "%s for grub.cfg", configfile)
            else:
                raise WicError("configfile is specified but failed to "
                               "get it from %s." % configfile)

        initrd = source_params.get('initrd')

        if initrd:
            bootimg_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
            if not bootimg_dir:
                raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting")

            cp_cmd = "cp %s/%s %s" % (bootimg_dir, initrd, hdddir)
            exec_cmd(cp_cmd, True)
        else:
            logger.debug("Ignoring missing initrd")

        if not custom_cfg:
            # Create grub configuration using parameters from wks file
            bootloader = creator.ks.bootloader
            title = source_params.get('title')

            grubefi_conf = ""
            grubefi_conf += "serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1\n"
            grubefi_conf += "default=boot\n"
            grubefi_conf += "timeout=%s\n" % bootloader.timeout
            grubefi_conf += "menuentry '%s'{\n" % (title if title else "boot")

            kernel = "/bzImage"

            grubefi_conf += "linux %s root=%s rootwait %s\n" \
                % (kernel, creator.rootdev, bootloader.append)

            if initrd:
               grubefi_conf += "initrd /%s\n" % initrd

            grubefi_conf += "}\n"

        logger.debug("Writing grubefi config %s/hdd/boot/EFI/BOOT/grub.cfg",
                     cr_workdir)
        cfg = open("%s/hdd/boot/EFI/BOOT/grub.cfg" % cr_workdir, "w")
        cfg.write(grubefi_conf)
        cfg.close()

    @classmethod
    def do_configure_systemdboot(cls, hdddir, creator, cr_workdir, source_params):
        """
        Create loader-specific systemd-boot/gummiboot config
        """
        install_cmd = "install -d %s/loader" % hdddir
        exec_cmd(install_cmd)

        install_cmd = "install -d %s/loader/entries" % hdddir
        exec_cmd(install_cmd)

        bootloader = creator.ks.bootloader

        loader_conf = ""
        loader_conf += "default boot\n"
        loader_conf += "timeout %d\n" % bootloader.timeout

        initrd = source_params.get('initrd')

        if initrd:
            # obviously we need to have a common common deploy var
            bootimg_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
            if not bootimg_dir:
                raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting")

            cp_cmd = "cp %s/%s %s" % (bootimg_dir, initrd, hdddir)
            exec_cmd(cp_cmd, True)
        else:
            logger.debug("Ignoring missing initrd")

        logger.debug("Writing systemd-boot config "
                     "%s/hdd/boot/loader/loader.conf", cr_workdir)
        cfg = open("%s/hdd/boot/loader/loader.conf" % cr_workdir, "w")
        cfg.write(loader_conf)
        cfg.close()

        configfile = creator.ks.bootloader.configfile
        custom_cfg = None
        if configfile:
            custom_cfg = get_custom_config(configfile)
            if custom_cfg:
                # Use a custom configuration for systemd-boot
                boot_conf = custom_cfg
                logger.debug("Using custom configuration file "
                             "%s for systemd-boots's boot.conf", configfile)
            else:
                raise WicError("configfile is specified but failed to "
                               "get it from %s.", configfile)

        if not custom_cfg:
            # Create systemd-boot configuration using parameters from wks file
            kernel = "/bzImage"
            title = source_params.get('title')

            boot_conf = ""
            boot_conf += "title %s\n" % (title if title else "boot")
            boot_conf += "linux %s\n" % kernel
            boot_conf += "options LABEL=Boot root=%s %s\n" % \
                             (creator.rootdev, bootloader.append)

            if initrd:
                boot_conf += "initrd /%s\n" % initrd

        logger.debug("Writing systemd-boot config "
                     "%s/hdd/boot/loader/entries/boot.conf", cr_workdir)
        cfg = open("%s/hdd/boot/loader/entries/boot.conf" % cr_workdir, "w")
        cfg.write(boot_conf)
        cfg.close()


    @classmethod
    def do_configure_partition(cls, part, source_params, creator, cr_workdir,
                               oe_builddir, bootimg_dir, kernel_dir,
                               native_sysroot):
        """
        Called before do_prepare_partition(), creates loader-specific config
        """
        hdddir = "%s/hdd/boot" % cr_workdir

        install_cmd = "install -d %s/EFI/BOOT" % hdddir
        exec_cmd(install_cmd)

        try:
            if source_params['loader'] == 'grub-efi':
                cls.do_configure_grubefi(hdddir, creator, cr_workdir, source_params)
            elif source_params['loader'] == 'systemd-boot':
                cls.do_configure_systemdboot(hdddir, creator, cr_workdir, source_params)
            else:
                raise WicError("unrecognized bootimg-efi loader: %s" % source_params['loader'])
        except KeyError:
            raise WicError("bootimg-efi requires a loader, none specified")


    @classmethod
    def do_prepare_partition(cls, part, source_params, creator, cr_workdir,
                             oe_builddir, bootimg_dir, kernel_dir,
                             rootfs_dir, native_sysroot):
        """
        Called to do the actual content population for a partition i.e. it
        'prepares' the partition to be incorporated into the image.
        In this case, prepare content for an EFI (grub) boot partition.
        """
        if not kernel_dir:
            kernel_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
            if not kernel_dir:
                raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting")

        staging_kernel_dir = kernel_dir

        hdddir = "%s/hdd/boot" % cr_workdir

        install_cmd = "install -m 0644 %s/bzImage %s/bzImage" % \
            (staging_kernel_dir, hdddir)
        exec_cmd(install_cmd)


        try:
            if source_params['loader'] == 'grub-efi':
                shutil.copyfile("%s/hdd/boot/EFI/BOOT/grub.cfg" % cr_workdir,
                                "%s/grub.cfg" % cr_workdir)
                for mod in [x for x in os.listdir(kernel_dir) if x.startswith("grub-efi-")]:
                    cp_cmd = "cp %s/%s %s/EFI/BOOT/%s" % (kernel_dir, mod, hdddir, mod[9:])
                    exec_cmd(cp_cmd, True)
                shutil.move("%s/grub.cfg" % cr_workdir,
                            "%s/hdd/boot/EFI/BOOT/grub.cfg" % cr_workdir)
            elif source_params['loader'] == 'systemd-boot':
                for mod in [x for x in os.listdir(kernel_dir) if x.startswith("systemd-")]:
                    cp_cmd = "cp %s/%s %s/EFI/BOOT/%s" % (kernel_dir, mod, hdddir, mod[8:])
                    exec_cmd(cp_cmd, True)
            else:
                raise WicError("unrecognized bootimg-efi loader: %s" %
                               source_params['loader'])
        except KeyError:
            raise WicError("bootimg-efi requires a loader, none specified")

        startup = os.path.join(kernel_dir, "startup.nsh")
        if os.path.exists(startup):
            cp_cmd = "cp %s %s/" % (startup, hdddir)
            exec_cmd(cp_cmd, True)

        du_cmd = "du -bks %s" % hdddir
        out = exec_cmd(du_cmd)
        blocks = int(out.split()[0])

        extra_blocks = part.get_extra_block_count(blocks)

        if extra_blocks < BOOTDD_EXTRA_SPACE:
            extra_blocks = BOOTDD_EXTRA_SPACE

        blocks += extra_blocks

        logger.debug("Added %d extra blocks to %s to get to %d total blocks",
                     extra_blocks, part.mountpoint, blocks)

        # dosfs image, created by mkdosfs
        bootimg = "%s/boot.img" % cr_workdir

        dosfs_cmd = "mkdosfs -n efi -i %s -C %s %d" % \
                    (part.fsuuid, bootimg, blocks)
        exec_native_cmd(dosfs_cmd, native_sysroot)

        mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (bootimg, hdddir)
        exec_native_cmd(mcopy_cmd, native_sysroot)

        chmod_cmd = "chmod 644 %s" % bootimg
        exec_cmd(chmod_cmd)

        du_cmd = "du -Lbks %s" % bootimg
        out = exec_cmd(du_cmd)
        bootimg_size = out.split()[0]

        part.size = int(bootimg_size)
        part.source_file = bootimg