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Re: [LUG] NTFS drive unmountable

 

Hmm

Running badblocks just to see. It'll take a while!!!

The output I'm getting is a sequence of
 
14  0.00% Done 01:30 Elapsed (14/0/0 errors)
15 etc

How do I interpret the output 14/0/0 ?

Also looked at the drive in Disk Utility and it's showing the drive as
not partitioned?

On 19/07/13 09:52, Gordon Henderson wrote:
> On Fri, 19 Jul 2013, Philip Whateley wrote:
>
>> I have a 1TB external USB drive that I use for backups - using sbackup
>>
>> I have just found that a file I overwrote cannot be restored from backup
>> - not critical, I can live without the file, but on testing none of the
>> files can be restored!!
>>
>> I have been playing with back in time as an alternative: first time it
>> failed over permissions on some files which I changed (or excluded from
>> the backup)
>>
>> It has now failed again (log below)
>
>>
>> Any ideas?
>
> It's corrupt, has failed, dead, broken, a usb drive no-more.
>
> I'd try this:
>
> Unplug it.
>
> Coult to 10 & plug it back in again. Also make sure it's powered
> properly - preferably via an external PSU.
>
> Run badblocks on it:
>
>   badblocks -c 256 -s /dev/sdb
>
> if that reports errors, then it's probably toast. You can look at
> using ddrescue to recover it and/or other tools, but you'll need
> another 1TB drive to ddrescure it onto. Depending on how toasty is it,
> you may be able to mount it read-only and recover some data, but
> really, bin it.
>
> (After ruling out USB errors, cabling, and the other obvious stuff)
>
> Also - why are you using ntfs? If you're backing up Linux stuff, use a
> Linux native format - ext3 or ext4 ...
>
> And test that you can restore your backups before having to rely on it..
>
> Gordon
>


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