summaryrefslogtreecommitdiffstats
path: root/scripts/lib/mic/plugins/source/bootimg-pcbios.py
blob: 1211e5c93b32312b24d76e3a55a94892d1751a28 (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
# 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-pcbios' source plugin class for 'wic'
#
# AUTHORS
# Tom Zanussi <tom.zanussi (at] linux.intel.com>
#

import os
import shutil
import re
import tempfile

from mic import kickstart, chroot, msger
from mic.utils import misc, fs_related, errors, runner, cmdln
from mic.conf import configmgr
from mic.plugin import pluginmgr
from mic.utils.partitionedfs import PartitionedMount
import mic.imager.direct as direct
from mic.pluginbase import SourcePlugin
from mic.utils.oe.misc import *
from mic.imager.direct import DirectImageCreator

class BootimgPcbiosPlugin(SourcePlugin):
    name = 'bootimg-pcbios'

    @classmethod
    def do_install_disk(self, disk, disk_name, cr, workdir, oe_builddir,
                        bootimg_dir, kernel_dir, native_sysroot):
        """
        Called after all partitions have been prepared and assembled into a
        disk image.  In this case, we install the MBR.
        """
        mbrfile = "%s/syslinux/" % bootimg_dir
        if cr._ptable_format == 'gpt':
            mbrfile += "gptmbr.bin"
        else:
            mbrfile += "mbr.bin"

        if not os.path.exists(mbrfile):
            msger.error("Couldn't find %s.  If using the -e option, do you have the right MACHINE set in local.conf?  If not, is the bootimg_dir path correct?" % mbrfile)

        full_path = cr._full_path(workdir, disk_name, "direct")
        msger.debug("Installing MBR on disk %s as %s with size %s bytes" \
                    % (disk_name, full_path, disk['min_size']))

        rc = runner.show(['dd', 'if=%s' % mbrfile,
                          'of=%s' % full_path, 'conv=notrunc'])
        if rc != 0:
            raise MountError("Unable to set MBR to %s" % full_path)

    @classmethod
    def do_configure_partition(self, part, cr, cr_workdir, oe_builddir,
                               bootimg_dir, kernel_dir, native_sysroot):
        """
        Called before do_prepare_partition(), creates syslinux config
        """
        hdddir = "%s/hdd/boot" % cr_workdir
        rm_cmd = "rm -rf " + cr_workdir
        exec_cmd(rm_cmd)

        install_cmd = "install -d %s" % hdddir
        tmp = exec_cmd(install_cmd)

        splash = os.path.join(cr_workdir, "/hdd/boot/splash.jpg")
        if os.path.exists(splash):
            splashline = "menu background splash.jpg"
        else:
            splashline = ""

        (rootdev, root_part_uuid) = cr._get_boot_config()
        options = cr.ks.handler.bootloader.appendLine

        syslinux_conf = ""
        syslinux_conf += "PROMPT 0\n"
        timeout = kickstart.get_timeout(cr.ks)
        if not timeout:
            timeout = 0
        syslinux_conf += "TIMEOUT " + str(timeout) + "\n"
        syslinux_conf += "\n"
        syslinux_conf += "ALLOWOPTIONS 1\n"
        syslinux_conf += "SERIAL 0 115200\n"
        syslinux_conf += "\n"
        if splashline:
            syslinux_conf += "%s\n" % splashline
        syslinux_conf += "DEFAULT boot\n"
        syslinux_conf += "LABEL boot\n"

        kernel = "/vmlinuz"
        syslinux_conf += "KERNEL " + kernel + "\n"

        if cr._ptable_format == 'msdos':
            rootstr = rootdev
        else:
            if not root_part_uuid:
                raise MountError("Cannot find the root GPT partition UUID")
            rootstr = "PARTUUID=%s" % root_part_uuid

        syslinux_conf += "APPEND label=boot root=%s %s\n" % (rootstr, options)

        msger.debug("Writing syslinux config %s/hdd/boot/syslinux.cfg" \
                    % cr_workdir)
        cfg = open("%s/hdd/boot/syslinux.cfg" % cr_workdir, "w")
        cfg.write(syslinux_conf)
        cfg.close()

    @classmethod
    def do_prepare_partition(self, part, cr, 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 legacy bios boot partition.
        """
        if not bootimg_dir:
            bootimg_dir = get_bitbake_var("STAGING_DATADIR")
            if not bootimg_dir:
                msger.error("Couldn't find STAGING_DATADIR, exiting\n")
            # just so the result notes display it
            cr.set_bootimg_dir(bootimg_dir)

        staging_kernel_dir = kernel_dir
        staging_data_dir = bootimg_dir

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

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

        install_cmd = "install -m 444 %s/syslinux/ldlinux.sys %s/ldlinux.sys" \
            % (staging_data_dir, hdddir)
        tmp = exec_cmd(install_cmd)

        du_cmd = "du -bks %s" % hdddir
        rc, 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

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

        # Ensure total sectors is an integral number of sectors per
        # track or mcopy will complain. Sectors are 512 bytes, and we
        # generate images with 32 sectors per track. This calculation is
        # done in blocks, thus the mod by 16 instead of 32.
        blocks += (16 - (blocks % 16))

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

        dosfs_cmd = "mkdosfs -n boot -S 512 -C %s %d" % (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)

        syslinux_cmd = "syslinux %s" % bootimg
        exec_native_cmd(syslinux_cmd, native_sysroot)

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

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

        part.set_size(bootimg_size)
        part.set_source_file(bootimg)