[dm-crypt] openLuks failing - semaphore weird bug involved ?

Arno Wagner arno at wagner.name
Thu Sep 15 18:06:45 CEST 2011


On Thu, Sep 15, 2011 at 11:54:30AM -0400, Ric Flomag wrote:
> >
> > If the drive has smart you could ask the drive's diagnostics
> > if there's any indication of trouble.
> >
> >
> I am not familiar with SMART. It reports 4 pending sectors and nothing else
> wrong. 

That is pretty bad. It means 4 unreadable sectors. Modern HDDs
try pretty had to read damaged sectors ond usually succeed. 

>I have run a "badblocks -nvs
> /dev/sdb3<https://one.ubuntu.com/dev/sdb3>",
> it did not find any error... And after this, SMART still reports 4 pending
> sectors.

Meaning the pending sectors are someplae else.

> Any clue about how investigating further ?

badblocks on /dev/sdb.

Arno

> Regards.
> 
> 
> 2011/9/8 Karl O. Pinc <kop at meme.com>
> 
> > On 09/08/2011 10:46:42 AM, Ric Flomag wrote:
> >
> >
> > > What worries me is that I have no clue what happened. A damage to the
> > > header
> > > is it possible without any signs of it ?
> >
> > I've not been paying attention, but have a thought.
> >
> > If the drive has smart you could ask the drive's diagnostics
> > if there's any indication of trouble.
> >
> > Regards,
> >
> > Karl <kop at meme.com>
> > Free Software:  "You don't pay back, you pay forward."
> >                 -- Robert A. Heinlein
> >
> >

> _______________________________________________
> dm-crypt mailing list
> dm-crypt at saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt


-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno at wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 


More information about the dm-crypt mailing list