| # 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 os |
| import shutil |
| |
| from wic import msger |
| from wic.pluginbase import SourcePlugin |
| from wic.utils.misc import get_custom_config |
| from wic.utils.oe.misc import exec_cmd, exec_native_cmd, get_bitbake_var, \ |
| BOOTDD_EXTRA_SPACE |
| |
| class BootimgEFIPlugin(SourcePlugin): |
| """ |
| Create EFI boot partition. |
| This plugin supports GRUB 2 and gummiboot bootloaders. |
| """ |
| |
| name = 'bootimg-efi' |
| |
| @classmethod |
| def do_configure_grubefi(cls, hdddir, creator, cr_workdir): |
| """ |
| 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 |
| msger.debug("Using custom configuration file " |
| "%s for grub.cfg" % configfile) |
| else: |
| msger.error("configfile is specified but failed to " |
| "get it from %s." % configfile) |
| |
| if not custom_cfg: |
| # Create grub configuration using parameters from wks file |
| bootloader = creator.ks.bootloader |
| |
| 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 'boot'{\n" |
| |
| kernel = "/bzImage" |
| |
| grubefi_conf += "linux %s root=%s rootwait %s\n" \ |
| % (kernel, creator.rootdev, bootloader.append) |
| grubefi_conf += "}\n" |
| |
| msger.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_gummiboot(cls, hdddir, creator, cr_workdir): |
| """ |
| Create loader-specific (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 |
| |
| msger.debug("Writing gummiboot 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 gummiboot |
| boot_conf = custom_cfg |
| msger.debug("Using custom configuration file " |
| "%s for gummiboots's boot.conf" % configfile) |
| else: |
| msger.error("configfile is specified but failed to " |
| "get it from %s." % configfile) |
| |
| if not custom_cfg: |
| # Create gummiboot configuration using parameters from wks file |
| kernel = "/bzImage" |
| |
| boot_conf = "" |
| boot_conf += "title boot\n" |
| boot_conf += "linux %s\n" % kernel |
| boot_conf += "options LABEL=Boot root=%s %s\n" % \ |
| (creator.rootdev, bootloader.append) |
| |
| msger.debug("Writing gummiboot 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) |
| elif source_params['loader'] == 'gummiboot': |
| cls.do_configure_gummiboot(hdddir, creator, cr_workdir) |
| else: |
| msger.error("unrecognized bootimg-efi loader: %s" % source_params['loader']) |
| except KeyError: |
| msger.error("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 bootimg_dir: |
| bootimg_dir = get_bitbake_var("HDDDIR") |
| if not bootimg_dir: |
| msger.error("Couldn't find HDDDIR, exiting\n") |
| # just so the result notes display it |
| creator.set_bootimg_dir(bootimg_dir) |
| |
| 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) |
| cp_cmd = "cp %s/EFI/BOOT/* %s/EFI/BOOT" % (bootimg_dir, hdddir) |
| 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'] == 'gummiboot': |
| cp_cmd = "cp %s/EFI/BOOT/* %s/EFI/BOOT" % (bootimg_dir, hdddir) |
| exec_cmd(cp_cmd, True) |
| else: |
| msger.error("unrecognized bootimg-efi loader: %s" % source_params['loader']) |
| except KeyError: |
| msger.error("bootimg-efi requires a loader, none specified") |
| |
| 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 efi -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) |
| |
| 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 = bootimg_size |
| part.source_file = bootimg |