esp-idf/components/partition_table/partitions_two_ota.csv

1	# Name	Type	SubType	Offset	Size
2	factory	0	0	0x10000	1M
3	ota_0	0	ota_0		1M
4	ota_1	0	ota_1		1M
5	rfdata	data	rf		256K
6	wifidata	data	wifi		256K
7	otadata	data	ota		256K