def _generate_boot_partition(self):
"""
Generates the start and size (in cylinders) of the boot partition.
"""
boot = Partition('boot')
# Config variables
boot_partition_size_mb = \
self._config.get_clean('CONFIG_INSTALLER_UBOOT_PARTITION_SIZE')
if self._config.has_option('CONFIG_BSP_ARCH_SD_CARD_INSTALLER_BOOTLOADER_OUT_OF_FS'):
boot.start = 1 # Leave room for the MBR at cylinder 0
else:
boot.start = 0
if boot_partition_size_mb == geometry.FULL_SIZE:
boot.size = geometry.FULL_SIZE
else:
boot_partition_size_b = float(int(boot_partition_size_mb) << 20)
boot_partition_size = math.ceil(boot_partition_size_b /
geometry.CYLINDER_BYTE_SIZE)
boot.size = int(boot_partition_size)
# Boot partition is bootable
boot.bootable = True
# Boot partition is FAT32/VFAT
boot.type = Partition.TYPE_FAT32_LBA
boot.filesystem = Partition.FILESYSTEM_VFAT
# Boot components are: bootloader and kernel.
boot.components = [boot.COMPONENT_BOOTLOADER, boot.COMPONENT_KERNEL]
self._partitions.append(boot)
def _generate_rootfs_partition(self):
"""
Generates the information for the rootfs (filesystem) partition.
"""
rootfs = Partition('rootfs')
rootfs.filesystem = Partition.FILESYSTEM_UNKNOWN
if self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT3'):
rootfs.filesystem = Partition.FILESYSTEM_EXT3
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4'):
rootfs.filesystem = Partition.FILESYSTEM_EXT4
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4_NO_JOURNAL'):
rootfs.filesystem = Partition.FILESYSTEM_EXT4_WRITEBACK
rootfs.type = Partition.TYPE_UNKNOWN
if (rootfs.filesystem == Partition.FILESYSTEM_EXT3 or
rootfs.filesystem == Partition.FILESYSTEM_EXT4 or
rootfs.filesystem == Partition.FILESYSTEM_EXT4_WRITEBACK):
rootfs.type = Partition.TYPE_LINUX_NATIVE
# If the partition filesystem for rootfs was not specified, assume
# Linux native, ext4.
if rootfs.filesystem == Partition.FILESYSTEM_UNKNOWN:
rootfs.filesystem = Partition.FILESYSTEM_EXT4
rootfs.type = Partition.TYPE_LINUX_NATIVE
# Take the whole SD card
rootfs.start = 1
rootfs.size = geometry.FULL_SIZE
rootfs.bootable = False
rootfs.components = [rootfs.COMPONENT_ROOTFS]
self._partitions.append(rootfs)
def _generate_rootfs_partition(self):
"""
Generates the information for the rootfs (filesystem) partition.
"""
rootfs = Partition('rootfs')
rootfs.filesystem = Partition.FILESYSTEM_UNKNOWN
if self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT3'):
rootfs.filesystem = Partition.FILESYSTEM_EXT3
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4'):
rootfs.filesystem = Partition.FILESYSTEM_EXT4
elif self._config.has_option(
'CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4_NO_JOURNAL'):
rootfs.filesystem = Partition.FILESYSTEM_EXT4_WRITEBACK
rootfs.type = Partition.TYPE_UNKNOWN
if (rootfs.filesystem == Partition.FILESYSTEM_EXT3
or rootfs.filesystem == Partition.FILESYSTEM_EXT4
or rootfs.filesystem == Partition.FILESYSTEM_EXT4_WRITEBACK):
rootfs.type = Partition.TYPE_LINUX_NATIVE
# If the partition filesystem for rootfs was not specified, assume
# Linux native, ext4.
if rootfs.filesystem == Partition.FILESYSTEM_UNKNOWN:
rootfs.filesystem = Partition.FILESYSTEM_EXT4
rootfs.type = Partition.TYPE_LINUX_NATIVE
# Take the whole SD card
rootfs.start = 1
rootfs.size = geometry.FULL_SIZE
rootfs.bootable = False
rootfs.components = [rootfs.COMPONENT_ROOTFS]
self._partitions.append(rootfs)
def _generate_boot_partition(self):
boot = Partition('boot')
if self._config.has_option('CONFIG_BSP_ARCH_SD_CARD_INSTALLER_BOOTLOADER_OUT_OF_FS'):
boot.start = 1 # Leave room for the MBR at cylinder 0
else:
boot.start = 0
boot.size = geometry.FULL_SIZE
boot.bootable = True
boot.type = Partition.TYPE_FAT32_LBA
boot.filesystem = Partition.FILESYSTEM_VFAT
boot.components = [boot.COMPONENT_BOOTLOADER]
self._partitions.append(boot)
def _generate_boot_partition(self):
boot = Partition('boot')
if self._config.has_option(
'CONFIG_BSP_ARCH_SD_CARD_INSTALLER_BOOTLOADER_OUT_OF_FS'):
boot.start = 1 # Leave room for the MBR at cylinder 0
else:
boot.start = 0
boot.size = geometry.FULL_SIZE
boot.bootable = True
boot.type = Partition.TYPE_FAT32_LBA
boot.filesystem = Partition.FILESYSTEM_VFAT
boot.components = [boot.COMPONENT_BOOTLOADER]
self._partitions.append(boot)
def _generate_boot_partition(self):
"""
Generates the start and size (in cylinders) of the boot partition.
"""
boot = Partition('boot')
# Config variables
boot_partition_size_mb = \
self._config.get_clean('CONFIG_INSTALLER_UBOOT_PARTITION_SIZE')
if self._config.has_option(
'CONFIG_BSP_ARCH_SD_CARD_INSTALLER_BOOTLOADER_OUT_OF_FS'):
boot.start = 1 # Leave room for the MBR at cylinder 0
else:
boot.start = 0
if boot_partition_size_mb == geometry.FULL_SIZE:
boot.size = geometry.FULL_SIZE
else:
boot_partition_size_b = float(int(boot_partition_size_mb) << 20)
boot_partition_size = math.ceil(boot_partition_size_b /
geometry.CYLINDER_BYTE_SIZE)
boot.size = int(boot_partition_size)
# Boot partition is bootable
boot.bootable = True
# Boot partition is FAT32/VFAT
boot.type = Partition.TYPE_FAT32_LBA
boot.filesystem = Partition.FILESYSTEM_VFAT
# Boot components are: bootloader and kernel.
boot.components = [boot.COMPONENT_BOOTLOADER, boot.COMPONENT_KERNEL]
self._partitions.append(boot)
def _generate_rootfs_partition(self):
"""
Generates the start and size (in cylinders) of the rootfs (filesystem)
partition.
Note that the rootfs partition might not be appended if
CONFIG_FS_TARGET_SD is not set, or the boot partition size is '-',
since it means that the boot partition took all the available space.
Assumes that the boot partition has already been appended to the
partitions list.
"""
# Check that the uboot partition has been appended
if not self._partitions:
self._logger.error('No info for the boot partition, '
'refused to generate rootfs partition info.')
return
# We need some info from the boot partition later on
boot = self._partitions[0]
rootfs = Partition('rootfs')
# Config variables
rootfs_in_sd = self._config.get_clean('CONFIG_FS_TARGET_SD')
rootfs_partition_size_mb = self._config.get_clean('CONFIG_INSTALLER_SD_ROOTFS_SIZE')
rootfs_partition_fs = Partition.FILESYSTEM_UNKNOWN
if self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT3'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT3
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT4
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4_NO_JOURNAL'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT4_WRITEBACK
rootfs_partition_type = Partition.TYPE_UNKNOWN
if (rootfs_partition_fs == Partition.FILESYSTEM_EXT3 or
rootfs_partition_fs == Partition.FILESYSTEM_EXT4 or
rootfs_partition_fs == Partition.FILESYSTEM_EXT4_WRITEBACK):
rootfs_partition_type = Partition.TYPE_LINUX_NATIVE
# Populate the rootfs partition
if rootfs_in_sd == 'y' and boot.size != geometry.FULL_SIZE:
# rootfs is installed next to the boot partition
rootfs.start = int(boot.start + boot.size)
if rootfs_partition_size_mb == geometry.FULL_SIZE:
rootfs.size = geometry.FULL_SIZE
else:
rootfs_partition_size_b = \
float(int(rootfs_partition_size_mb) << 20)
rootfs_partition_size = math.ceil(rootfs_partition_size_b /
geometry.CYLINDER_BYTE_SIZE)
rootfs.size = int(rootfs_partition_size)
# If the partition type for rootfs was not specified, assume
# Linux native, ext4. A warning should've been raised already
# by validate_config().
if rootfs_partition_type == Partition.TYPE_UNKNOWN:
rootfs_partition_fs = Partition.FILESYSTEM_EXT4
rootfs_partition_type = Partition.TYPE_LINUX_NATIVE
rootfs.type = rootfs_partition_type
rootfs.filesystem = rootfs_partition_fs
# Rootfs components are: rootfs
rootfs.components = [rootfs.COMPONENT_ROOTFS]
self._partitions.append(rootfs)
def _generate_rootfs_partition(self):
"""
Generates the start and size (in cylinders) of the rootfs (filesystem)
partition.
Note that the rootfs partition might not be appended if
CONFIG_FS_TARGET_SD is not set, or the boot partition size is '-',
since it means that the boot partition took all the available space.
Assumes that the boot partition has already been appended to the
partitions list.
"""
# Check that the uboot partition has been appended
if not self._partitions:
self._logger.error('No info for the boot partition, '
'refused to generate rootfs partition info.')
return
# We need some info from the boot partition later on
boot = self._partitions[0]
rootfs = Partition('rootfs')
# Config variables
rootfs_in_sd = self._config.get_clean('CONFIG_FS_TARGET_SD')
rootfs_partition_size_mb = self._config.get_clean(
'CONFIG_INSTALLER_SD_ROOTFS_SIZE')
rootfs_partition_fs = Partition.FILESYSTEM_UNKNOWN
if self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT3'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT3
elif self._config.has_option('CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT4
elif self._config.has_option(
'CONFIG_INSTALLER_SD_ROOTFS_TYPE_EXT4_NO_JOURNAL'):
rootfs_partition_fs = Partition.FILESYSTEM_EXT4_WRITEBACK
rootfs_partition_type = Partition.TYPE_UNKNOWN
if (rootfs_partition_fs == Partition.FILESYSTEM_EXT3
or rootfs_partition_fs == Partition.FILESYSTEM_EXT4
or rootfs_partition_fs == Partition.FILESYSTEM_EXT4_WRITEBACK):
rootfs_partition_type = Partition.TYPE_LINUX_NATIVE
# Populate the rootfs partition
if rootfs_in_sd == 'y' and boot.size != geometry.FULL_SIZE:
# rootfs is installed next to the boot partition
rootfs.start = int(boot.start + boot.size)
if rootfs_partition_size_mb == geometry.FULL_SIZE:
rootfs.size = geometry.FULL_SIZE
else:
rootfs_partition_size_b = \
float(int(rootfs_partition_size_mb) << 20)
rootfs_partition_size = math.ceil(rootfs_partition_size_b /
geometry.CYLINDER_BYTE_SIZE)
rootfs.size = int(rootfs_partition_size)
# If the partition type for rootfs was not specified, assume
# Linux native, ext4. A warning should've been raised already
# by validate_config().
if rootfs_partition_type == Partition.TYPE_UNKNOWN:
rootfs_partition_fs = Partition.FILESYSTEM_EXT4
rootfs_partition_type = Partition.TYPE_LINUX_NATIVE
rootfs.type = rootfs_partition_type
rootfs.filesystem = rootfs_partition_fs
# Rootfs components are: rootfs
rootfs.components = [rootfs.COMPONENT_ROOTFS]
self._partitions.append(rootfs)
