esp-idf/components/vfs/test_apps/partitions.csv

1	# Name, Type, SubType, Offset, Size, Flags
2	# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
3	nvs, data, nvs, 0x9000, 0x6000,
4	factory, 0, 0, 0x10000, 1M
5	flash_test, data, fat, , 528K