diff options
Diffstat (limited to 'scripts/lib/wic/plugins/source/bootimg-pcbios.py')
| -rw-r--r-- | scripts/lib/wic/plugins/source/bootimg-pcbios.py | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/scripts/lib/wic/plugins/source/bootimg-pcbios.py b/scripts/lib/wic/plugins/source/bootimg-pcbios.py new file mode 100644 index 0000000000..bd2225eeaf --- /dev/null +++ b/scripts/lib/wic/plugins/source/bootimg-pcbios.py @@ -0,0 +1,190 @@ +# 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 wic import kickstart, msger +from wic.utils import misc, fs_related, errors, runner, cmdln +from wic.conf import configmgr +from wic.plugin import pluginmgr +import wic.imager.direct as direct +from wic.pluginbase import SourcePlugin +from wic.utils.oe.misc import * +from wic.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 == 'msdos': + 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 ImageError("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 + 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: + raise ImageError("Unsupported partition table format found") + + 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) + exec_cmd(install_cmd) + + install_cmd = "install -m 444 %s/syslinux/ldlinux.sys %s/ldlinux.sys" \ + % (staging_data_dir, hdddir) + exec_cmd(install_cmd) + + 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 + + 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 + out = exec_cmd(du_cmd) + bootimg_size = out.split()[0] + + part.set_size(bootimg_size) + part.set_source_file(bootimg) + + |