diff options
| -rw-r--r-- | scripts/lib/wic/plugins/source/bootimg-sota-efi.py | 148 | ||||
| -rw-r--r-- | wic/efidisk-sota.wks | 8 |
2 files changed, 156 insertions, 0 deletions
diff --git a/scripts/lib/wic/plugins/source/bootimg-sota-efi.py b/scripts/lib/wic/plugins/source/bootimg-sota-efi.py new file mode 100644 index 0000000..a4e9092 --- /dev/null +++ b/scripts/lib/wic/plugins/source/bootimg-sota-efi.py @@ -0,0 +1,148 @@ +# Copyright (c) 2014, Intel Corporation. +# Copyright (c) 2018, Open Source Foundries Ltd. +# +# SPDX-License-Identifier: GPL-2.0 +# +# DESCRIPTION +# This implements the 'bootimg-sota-efi' source plugin class for 'wic' +# +# Heavily based on the bootimg-efi plugin from OE-core. + +import logging +import os +import shutil + +from wic import WicError +from wic.engine import get_custom_config +from wic.pluginbase import SourcePlugin +from wic.misc import (exec_cmd, exec_native_cmd, + get_bitbake_var, BOOTDD_EXTRA_SPACE) + +logger = logging.getLogger('wic') + +class BootimgSotaEFIPlugin(SourcePlugin): + """ + Create Sota EFI boot partition. + This plugin only supports the GRUB 2 bootloader. + """ + + name = 'bootimg-sota-efi' + + @classmethod + def do_configure_grubefi(cls, creator, cr_workdir): + """ + Create loader-specific (grub-efi) config + """ + configfile = creator.ks.bootloader.configfile + + if not configfile: + raise WicError("Missing configfile argument") + + custom_cfg = None + custom_cfg = get_custom_config(configfile) + if custom_cfg: + # Use a custom configuration for grub + grubefi_conf = custom_cfg + logger.debug("Using custom configuration file " + "%s for grub.cfg", configfile) + else: + raise WicError("configfile is specified but failed to " + "get it from %s." % configfile) + + logger.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_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(creator, cr_workdir) + else: + raise WicError("unrecognized bootimg-sota-efi loader: %s" % source_params['loader']) + except KeyError: + raise WicError("bootimg-sota-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 kernel_dir: + kernel_dir = get_bitbake_var("DEPLOY_DIR_IMAGE") + if not kernel_dir: + raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting") + + hdddir = "%s/hdd/boot" % cr_workdir + + try: + if source_params['loader'] == 'grub-efi': + shutil.copyfile("%s/hdd/boot/EFI/BOOT/grub.cfg" % cr_workdir, + "%s/grub.cfg" % cr_workdir) + for mod in [x for x in os.listdir(kernel_dir) if x.startswith("grub-efi-")]: + cp_cmd = "cp %s/%s %s/EFI/BOOT/%s" % (kernel_dir, mod, hdddir, mod[9:]) + exec_cmd(cp_cmd, True) + shutil.move("%s/grub.cfg" % cr_workdir, + "%s/hdd/boot/EFI/BOOT/grub.cfg" % cr_workdir) + else: + raise WicError("unrecognized bootimg-sota-efi loader: %s" % + source_params['loader']) + except KeyError: + raise WicError("bootimg-sota-efi requires a loader, none specified") + + startup = os.path.join(kernel_dir, "startup.nsh") + if os.path.exists(startup): + cp_cmd = "cp %s %s/" % (startup, hdddir) + exec_cmd(cp_cmd, True) + + 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 + + logger.debug("Added %d extra blocks to %s to get to %d total blocks", + extra_blocks, part.mountpoint, blocks) + + # dosfs image, created by mkdosfs + bootimg = "%s/boot.img" % cr_workdir + + dosfs_cmd = "mkdosfs -n efi -i %s -C %s %d" % \ + (part.fsuuid, 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 = int(bootimg_size) + part.source_file = bootimg diff --git a/wic/efidisk-sota.wks b/wic/efidisk-sota.wks new file mode 100644 index 0000000..ffe1174 --- /dev/null +++ b/wic/efidisk-sota.wks @@ -0,0 +1,8 @@ +# short-description: Create an OTA-enabled EFI disk image +# long-description: Creates an OTA-enabled EFI disk image that the user +# can directly dd to boot media. + +part /boot/efi --source bootimg-sota-efi --sourceparams="loader=grub-efi" --ondisk sda --active --align 1024 --use-uuid +part / --source otaimage --ondisk sda --fstype=ext4 --align 1024 --use-uuid + +bootloader --ptable gpt --configfile="grub-ota.cfg" |