Partition addressing

Wherever a command takes a PARTITION, you can pass:

Name

A name from the partition table: nvs, ota_0, storage. bootloader and partition_table also work even when the table has no row for them.

Address

A number matching a partition's start offset exactly: 0x9000. The same as naming that partition.

Offset into a partition: name[offset]

Where to start within the partition. Negative values count from the end. Accepted by write and create-image.

Slice of a partition: name[start:stop]

Negative values count from the end, and a +N stop is a length from start. Accepted by read, erase, and view.

Slice	Means
nvs[0:0x100]	First 256 bytes of nvs
storage[-0x1000:]	Last 4 KiB of storage
ota_0[0x1000:+0x800]	2 KiB starting 4 KiB into ota_0

Numbers in addresses, offsets, and sizes can be decimal (4096) or hex (0x1000).

Tip

Quote slices in the shell: 'storage[-0x1000:]'. Brackets are glob characters in most shells.