Correct way to flash an MTD partition using mtd-utils

[Richard Weinberger]

Matthew,

On Thu, Aug 10, 2017 at 5:42 PM, Matthew Stanger
<matthew_stanger at trimble.com> wrote:
> Hi all,
>
> I'm hoping someone would be able to tell me the correct way to backup
> a mtd partition. Right now I'm cleaning up some code that would run
> nanddump and pipe it to ubiformat, to dump a RFS from one primary
> partition to an identically sized backup partition. The overlaying
> filesystem being UBIFS. The issue is if the backup partition has an
> extra badblock, than the source, then there isn't enough room. I'm not
> an expert in this space so I'm hoping someone can clarify what the
> correct way is to do this; I'm pretty sure this method isn't right? Is
> using 'mkfs.ubifs' to copy the RFS at the UBIFS layer they way to go
> and then restore it with 'ubinize'? Is there a better, faster way?
> Thanks for any tips.

What exactly do you want to backup?
If you want to backup/restore UBIFS, dd from /dev/ubiX_Y and restore using
ubiupdatevol.

-- 
Thanks,
//richard