nanddump syntax
Baruch Siach
baruch at tkos.co.il
Thu Nov 30 12:24:46 UTC 2017
Hi A.W.C,
On Thu, Nov 30, 2017 at 11:34:13AM +0000, A.W.C. wrote:
> 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.
The nanddump Busybox applet has only been introduced in Busybox version 1.18.
The nanddump you are using is most likely from the mtd-utils package. Please
refer to the linux-mtd list for question about mtd-utils.
baruch
> 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
--
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