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def get_partition_number(self):
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"""Return the partition number in the table."""
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from maasserver.models.partitiontable import GPT_REQUIRED_SIZE
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# Sort manually instead of with `order_by`, this will prevent django
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# from making a query if the partitions are already cached.
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partitions_in_table = self.partition_table.partitions.all()
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partitions_in_table = sorted(partitions_in_table, key=attrgetter('id'))
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idx = partitions_in_table.index(self)
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if self.partition_table.table_type == PARTITION_TABLE_TYPE.GPT:
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# ppc64el machines get part1 skipped when this partition is on
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# the boot disk. This is because the prep partition is part1 and
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# is added when the preseed for storage is generated.
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# In some instances the first partition is skipped because it
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# is used by the machine architecture for a specific reason.
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# * ppc64el - reserved for prep partition
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# * amd64 (disk >= 2TiB) - reserved for bios_grub partition
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node = self.get_node()
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arch, _ = node.split_arch()
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boot_disk = node.get_boot_disk()
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bios_boot_method = node.get_bios_boot_method()
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if (arch == "ppc64el" and
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self.partition_table.block_device.id == boot_disk.id):
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elif (arch == "amd64" and
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self.partition_table.block_device.id == boot_disk.id and
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bios_boot_method != "uefi" and
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boot_disk.size >= GPT_REQUIRED_SIZE):
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elif self.partition_table.table_type == PARTITION_TABLE_TYPE.MBR:
added
removed
src/maasserver/models/partition.py
