[RFC][FAT] Handle MBR on the first sector

[Franck Jullien]

2012/9/14 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>:
>
> On 09:25 Fri 14 Sep     , Sascha Hauer wrote:
>>
>> On Fri, Sep 14, 2012 at 09:22:07AM +0200, Franck Jullien wrote:
>> > 2012/9/14 Sascha Hauer <s.hauer at pengutronix.de>:
>> > > Hi Franck,
>> > >
>> > > On Thu, Sep 13, 2012 at 02:13:29PM +0200, Franck Jullien wrote:
>> > >> *** Did not send this email with git because it's no working where I am **
>> > >>
>> > >> We may have some disk with MBR as a first sector. In this case, the
>> > >> current FAT check returns an error. However, the FAT sector exist and
>> > >> the MBR can tell us where it is.
>> > >>
>> > >> This patch make the FAT fs try to find the FAT boot sector on the first
>> > >> sector of the first partition in case it is not on sector 0.
>> > >
>> > > The patch looks good. Not applying it because it's RFC, but I would if
>> > > you give your ok.
>> > >
>> >
>> > You have it.
>>
>> Thanks, applied
>
> Does this work with the fat autodetection
>
> Best Regards,
> J.

What do you mean ?

It works when you mount your device as FAT. The FAT fs check is the
first sector is FAT boot sector. If not, it suppose it is an MBR and
the FAT boot sector is in the first partition.

Franck.