mount ubi volume fails: No such device

[Artem Bityutskiy]

On Mon, 2011-02-07 at 07:05 -0800, Lars Michael wrote:
> UBI: scrubbed PEB 863, data moved to PEB 1097 UBI warning: ubi_eba_copy_leb: read data back from PEB 1092 and it is different UBI error: wear_leveling_worker: error -22 while moving PEB 868 to PEB 1092 UBI warning: ubi_ro_mode: switch to read-only mode UBI error: do_work: work failed with error code -22 UBI error: ubi_thread: ubi_bgt0d: work failed with error code -22

It says you that it wrote some date, then read it back, compared, and
the data did not match. You need to start with validating your falash
drivers - use mtd tests:

http://www.linux-mtd.infradead.org/doc/general.html#L_mtd_tests

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)