[U-Boot] u-boot UBI support

[Tom Rini]

On Tue, Apr 30, 2013 at 01:54:41PM -0700, Paul B. Henson wrote:

> On 4/29/2013 1:57 AM, Sascha Silbe wrote:
> >>MX28EVK U-Boot > ubifsmount recovery
> >>
> >>UBIFS error (pid 0): ubifs_get_sb: cannot open "recovery", error -22
> >>UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume
> >>'recovery' errno=-22!
> >
> >Try increasing CONFIG_SYS_MALLOC_LEN, e.g. to 4MiB. That fixed it for me
> >on a different board.
> 
> It actually turned out to be something a lot simpler. Unlike Linux,
> u-boot only allows one active ubi partition. However, because it
> uses the code from Linux, when trying to access a file system you
> still need to specify which ubi partition it's on, which was neither
> intuitive nor obvious until I dug through the code.
> 
> When I specified "ubifsmount ubi0:recovery", it worked perfectly.
> 
> Thanks?

Would you mind patching doc/README.ubi ?  Thanks!

-- 
Tom
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