Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame^] | 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 | |
| 27 | import os |
| 28 | |
| 29 | from wic.utils.errors import ImageError |
| 30 | from wic import kickstart, msger |
| 31 | from wic.utils import runner |
| 32 | from wic.pluginbase import SourcePlugin |
| 33 | from wic.utils.oe.misc import exec_cmd, exec_native_cmd, \ |
| 34 | get_bitbake_var, BOOTDD_EXTRA_SPACE |
| 35 | |
| 36 | class BootimgPcbiosPlugin(SourcePlugin): |
| 37 | """ |
| 38 | Create MBR boot partition and install syslinux on it. |
| 39 | """ |
| 40 | |
| 41 | name = 'bootimg-pcbios' |
| 42 | |
| 43 | @classmethod |
| 44 | def do_install_disk(cls, disk, disk_name, creator, workdir, oe_builddir, |
| 45 | bootimg_dir, kernel_dir, native_sysroot): |
| 46 | """ |
| 47 | Called after all partitions have been prepared and assembled into a |
| 48 | disk image. In this case, we install the MBR. |
| 49 | """ |
| 50 | mbrfile = "%s/syslinux/" % bootimg_dir |
| 51 | if creator.ptable_format == 'msdos': |
| 52 | mbrfile += "mbr.bin" |
| 53 | elif creator.ptable_format == 'gpt': |
| 54 | mbrfile += "gptmbr.bin" |
| 55 | else: |
| 56 | msger.error("Unsupported partition table: %s" % creator.ptable_format) |
| 57 | |
| 58 | if not os.path.exists(mbrfile): |
| 59 | msger.error("Couldn't find %s. If using the -e option, do you " |
| 60 | "have the right MACHINE set in local.conf? If not, " |
| 61 | "is the bootimg_dir path correct?" % mbrfile) |
| 62 | |
| 63 | full_path = creator._full_path(workdir, disk_name, "direct") |
| 64 | msger.debug("Installing MBR on disk %s as %s with size %s bytes" \ |
| 65 | % (disk_name, full_path, disk['min_size'])) |
| 66 | |
| 67 | rcode = runner.show(['dd', 'if=%s' % mbrfile, |
| 68 | 'of=%s' % full_path, 'conv=notrunc']) |
| 69 | if rcode != 0: |
| 70 | raise ImageError("Unable to set MBR to %s" % full_path) |
| 71 | |
| 72 | @classmethod |
| 73 | def do_configure_partition(cls, part, source_params, creator, cr_workdir, |
| 74 | oe_builddir, bootimg_dir, kernel_dir, |
| 75 | native_sysroot): |
| 76 | """ |
| 77 | Called before do_prepare_partition(), creates syslinux config |
| 78 | """ |
| 79 | hdddir = "%s/hdd/boot" % cr_workdir |
| 80 | rm_cmd = "rm -rf " + cr_workdir |
| 81 | exec_cmd(rm_cmd) |
| 82 | |
| 83 | install_cmd = "install -d %s" % hdddir |
| 84 | exec_cmd(install_cmd) |
| 85 | |
| 86 | splash = os.path.join(cr_workdir, "/hdd/boot/splash.jpg") |
| 87 | if os.path.exists(splash): |
| 88 | splashline = "menu background splash.jpg" |
| 89 | else: |
| 90 | splashline = "" |
| 91 | |
| 92 | options = creator.ks.handler.bootloader.appendLine |
| 93 | |
| 94 | syslinux_conf = "" |
| 95 | syslinux_conf += "PROMPT 0\n" |
| 96 | timeout = kickstart.get_timeout(creator.ks) |
| 97 | if not timeout: |
| 98 | timeout = 0 |
| 99 | syslinux_conf += "TIMEOUT " + str(timeout) + "\n" |
| 100 | syslinux_conf += "\n" |
| 101 | syslinux_conf += "ALLOWOPTIONS 1\n" |
| 102 | syslinux_conf += "SERIAL 0 115200\n" |
| 103 | syslinux_conf += "\n" |
| 104 | if splashline: |
| 105 | syslinux_conf += "%s\n" % splashline |
| 106 | syslinux_conf += "DEFAULT boot\n" |
| 107 | syslinux_conf += "LABEL boot\n" |
| 108 | |
| 109 | kernel = "/vmlinuz" |
| 110 | syslinux_conf += "KERNEL " + kernel + "\n" |
| 111 | |
| 112 | syslinux_conf += "APPEND label=boot root=%s %s\n" % \ |
| 113 | (creator.rootdev, 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(cls, part, source_params, creator, 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(dirname): |
| 131 | if dirname: |
| 132 | syslinux = "%s/syslinux" % dirname |
| 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 | creator.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 -Lbks %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 | |