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1# ex:ts=4:sw=4:sts=4:et
2# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
3#
4# Copyright (c) 2014, Intel Corporation.
5# All rights reserved.
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License version 2 as
9# published by the Free Software Foundation.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License along
17# with this program; if not, write to the Free Software Foundation, Inc.,
18# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19#
20# DESCRIPTION
21# This implements the 'bootimg-pcbios' source plugin class for 'wic'
22#
23# AUTHORS
24# Tom Zanussi <tom.zanussi (at] linux.intel.com>
25#
26
27import os
28import shutil
29import re
30import tempfile
31
32from wic import kickstart, msger
33from wic.utils import misc, fs_related, errors, runner, cmdln
34from wic.conf import configmgr
35from wic.plugin import pluginmgr
36import wic.imager.direct as direct
37from wic.pluginbase import SourcePlugin
38from wic.utils.oe.misc import *
39from wic.imager.direct import DirectImageCreator
40
41class BootimgPcbiosPlugin(SourcePlugin):
42 name = 'bootimg-pcbios'
43
44 @classmethod
45 def do_install_disk(self, disk, disk_name, cr, workdir, oe_builddir,
46 bootimg_dir, kernel_dir, native_sysroot):
47 """
48 Called after all partitions have been prepared and assembled into a
49 disk image. In this case, we install the MBR.
50 """
51 mbrfile = "%s/syslinux/" % bootimg_dir
52 if cr._ptable_format == 'msdos':
53 mbrfile += "mbr.bin"
54
55 if not os.path.exists(mbrfile):
56 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)
57
58 full_path = cr._full_path(workdir, disk_name, "direct")
59 msger.debug("Installing MBR on disk %s as %s with size %s bytes" \
60 % (disk_name, full_path, disk['min_size']))
61
62 rc = runner.show(['dd', 'if=%s' % mbrfile,
63 'of=%s' % full_path, 'conv=notrunc'])
64 if rc != 0:
65 raise ImageError("Unable to set MBR to %s" % full_path)
66
67 @classmethod
68 def do_configure_partition(self, part, source_params, cr, cr_workdir,
69 oe_builddir, bootimg_dir, kernel_dir,
70 native_sysroot):
71 """
72 Called before do_prepare_partition(), creates syslinux config
73 """
74 hdddir = "%s/hdd/boot" % cr_workdir
75 rm_cmd = "rm -rf " + cr_workdir
76 exec_cmd(rm_cmd)
77
78 install_cmd = "install -d %s" % hdddir
79 exec_cmd(install_cmd)
80
81 splash = os.path.join(cr_workdir, "/hdd/boot/splash.jpg")
82 if os.path.exists(splash):
83 splashline = "menu background splash.jpg"
84 else:
85 splashline = ""
86
87 (rootdev, root_part_uuid) = cr._get_boot_config()
88 options = cr.ks.handler.bootloader.appendLine
89
90 syslinux_conf = ""
91 syslinux_conf += "PROMPT 0\n"
92 timeout = kickstart.get_timeout(cr.ks)
93 if not timeout:
94 timeout = 0
95 syslinux_conf += "TIMEOUT " + str(timeout) + "\n"
96 syslinux_conf += "\n"
97 syslinux_conf += "ALLOWOPTIONS 1\n"
98 syslinux_conf += "SERIAL 0 115200\n"
99 syslinux_conf += "\n"
100 if splashline:
101 syslinux_conf += "%s\n" % splashline
102 syslinux_conf += "DEFAULT boot\n"
103 syslinux_conf += "LABEL boot\n"
104
105 kernel = "/vmlinuz"
106 syslinux_conf += "KERNEL " + kernel + "\n"
107
108 if cr._ptable_format == 'msdos':
109 rootstr = rootdev
110 else:
111 raise ImageError("Unsupported partition table format found")
112
113 syslinux_conf += "APPEND label=boot root=%s %s\n" % (rootstr, options)
114
115 msger.debug("Writing syslinux config %s/hdd/boot/syslinux.cfg" \
116 % cr_workdir)
117 cfg = open("%s/hdd/boot/syslinux.cfg" % cr_workdir, "w")
118 cfg.write(syslinux_conf)
119 cfg.close()
120
121 @classmethod
122 def do_prepare_partition(self, part, source_params, cr, cr_workdir,
123 oe_builddir, bootimg_dir, kernel_dir,
124 rootfs_dir, native_sysroot):
125 """
126 Called to do the actual content population for a partition i.e. it
127 'prepares' the partition to be incorporated into the image.
128 In this case, prepare content for legacy bios boot partition.
129 """
130 def _has_syslinux(dir):
131 if dir:
132 syslinux = "%s/syslinux" % dir
133 if os.path.exists(syslinux):
134 return True
135 return False
136
137 if not _has_syslinux(bootimg_dir):
138 bootimg_dir = get_bitbake_var("STAGING_DATADIR")
139 if not bootimg_dir:
140 msger.error("Couldn't find STAGING_DATADIR, exiting\n")
141 if not _has_syslinux(bootimg_dir):
142 msger.error("Please build syslinux first\n")
143 # just so the result notes display it
144 cr.set_bootimg_dir(bootimg_dir)
145
146 staging_kernel_dir = kernel_dir
147
148 hdddir = "%s/hdd/boot" % cr_workdir
149
150 install_cmd = "install -m 0644 %s/bzImage %s/vmlinuz" \
151 % (staging_kernel_dir, hdddir)
152 exec_cmd(install_cmd)
153
154 install_cmd = "install -m 444 %s/syslinux/ldlinux.sys %s/ldlinux.sys" \
155 % (bootimg_dir, hdddir)
156 exec_cmd(install_cmd)
157
158 du_cmd = "du -bks %s" % hdddir
159 out = exec_cmd(du_cmd)
160 blocks = int(out.split()[0])
161
162 extra_blocks = part.get_extra_block_count(blocks)
163
164 if extra_blocks < BOOTDD_EXTRA_SPACE:
165 extra_blocks = BOOTDD_EXTRA_SPACE
166
167 blocks += extra_blocks
168
169 msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
170 (extra_blocks, part.mountpoint, blocks))
171
172 # Ensure total sectors is an integral number of sectors per
173 # track or mcopy will complain. Sectors are 512 bytes, and we
174 # generate images with 32 sectors per track. This calculation is
175 # done in blocks, thus the mod by 16 instead of 32.
176 blocks += (16 - (blocks % 16))
177
178 # dosfs image, created by mkdosfs
179 bootimg = "%s/boot.img" % cr_workdir
180
181 dosfs_cmd = "mkdosfs -n boot -S 512 -C %s %d" % (bootimg, blocks)
182 exec_native_cmd(dosfs_cmd, native_sysroot)
183
184 mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (bootimg, hdddir)
185 exec_native_cmd(mcopy_cmd, native_sysroot)
186
187 syslinux_cmd = "syslinux %s" % bootimg
188 exec_native_cmd(syslinux_cmd, native_sysroot)
189
190 chmod_cmd = "chmod 644 %s" % bootimg
191 exec_cmd(chmod_cmd)
192
193 du_cmd = "du -Lbms %s" % bootimg
194 out = exec_cmd(du_cmd)
195 bootimg_size = out.split()[0]
196
197 part.set_size(bootimg_size)
198 part.set_source_file(bootimg)
199
200