nanddump syntax

[A.W.C.]

Hi,


BusyBox v1.10.2 (2015-09-06 10:58:05 CST) built-in shell (ash)
I am in Busybox emergency shell, where Linux kernel is not fully loaded, and MTD devices are not set.



what is correct syntax to use nanddump dump do dump contecnt of nand partition?
>From the kernel log at boot time, there was created 11 MTD partitions on NAND flash.
For example, NAND partition: 

Creating 11 MTD partitions on "gen_nand":
... ...
0x01f00000-0x01f80000 : "NVRAM"

I tried command
nanddump -o -b -f  /tmp/nonvol.bin  -s 0x01f00000 -l 0x00080000

but this not work, show error. 

I can't display MTD partitions in form of independent MTD devices by viewing cat /proc/mtd

dev:    size   erasesize  name
...
mtd10: 0x01f00000  0x01f80000  "NVRAM"

because MTD devices are not set.

Are the nanddump command only for MTD-devices in form /dev/mtdx?

Regards,



nanddump Revision: 1.1.1.1

Usage: nanddump [OPTIONS] MTD-device
Dumps the contents of a nand mtd partition.

--help	        display this help and exit
--version	        output version information and exit
-f file    --file=file          dump to file
-i         --ignoreerrors       ignore errors
-l length  --length=length      length
-n         --noecc              read without error correction
-o         --omitoob            omit oob data
-b         --omitbad            omit bad blocks from the dump
-p         --prettyprint        print nice (hexdump)
-s addr    --startaddress=addr  start address