Find & remove orphan LEBs from UBIFS partition

Konstantin Tokarev annulen at yandex.ru
Fri Jan 17 10:03:54 EST 2014



17.01.2014, 18:59, "Artem Bityutskiy" <dedekind1 at gmail.com>:
> On Fri, 2014-01-17 at 13:39 +0400, Konstantin Tokarev wrote:
>
>>  Hi all,
>>
>>  How can I find and remove LEBs which don't correspond to known files
>>  using internal API of UBIFS?
>>  AFAIU, somethinng like this is done on recovery during mount, but in
>>  my case superblock is not dirty, so I'd like to force cleanup with
>>  custom mount option.
>
> Are you trying to do something like 'secure deletion' ? Disclosing your
> intentions would help understanding what you need. I do not quite
> understand.
>
> Do you want to fine all LEBs which do not contain anything useful like
> data or meta-data, and unmap them?

Yes, exactly.

-- 
Regards,
Konstantin



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