linux-kernel - Re: Is there a way to limit VFAT allocation?

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Date:	Tue, 17 Oct 2006 09:27:37 +0200
From:	Zoltan Boszormenyi <zboszor@...aweb.hu>
To:	Rene Scharfe <rene.scharfe@...fire.ath.cx>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Is there a way to limit VFAT allocation?

Rene Scharfe írta:
> Zoltan Boszormenyi schrieb:
>   
>> Prakash Punnoor írta:
>>     
>>> Am Montag 16 Oktober 2006 12:06 schrieb Zoltan Boszormenyi:
>>>  
>>>       
>>>> Is there a way to tell the VFAT driver to exclude
>>>> the last N sectors from the allocation strategy?
>>>>     
>>>>         
>>> Can't you mark that clusters as bad with a diskeditor?
>>>   
>>>       
>> Can you suggest one that works on Linux?
>> Or which bits should I change if I use LDE?
>> (lde.sourceforge.net)
>>     
>
> Try mbadblocks, part of the Mtools package (http://mtools.linux.lu/).
> If it doesn't help, and you are brave, you may want to play with
> mdoctorfat, which comes with Mtools, too, but is hidden for some reason. :->
>
> René
>   

Thanks. I have set up my /root/.mtoolsrc and:

# mbadblocks x:
plain_io: Input/output error
Bad cluster 63985 found
plain_io: Input/output error
Bad cluster 63986 found
plain_io: Input/output error
Bad cluster 63987 found
plain_io: Input/output error
Bad cluster 63988 found
plain_io: Input/output error
Bad cluster 63989 found

After unplugging the device didn't reformat itself.
Filling the disk seems to be working. It gives me
"disk full" without any new "Buffer I/O error on device sdc1"
or FAT panic messages in the kernel logs.

Thanks and best regards,
Zoltán Böszörményi

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