[Pkg-opt-media-team] Bug#693620: Bug#693620: dvdisaster does not start

[Karsten Malcher]

Hi Carsten,

Am 19.11.2012 20:13, schrieb Carsten Gnörlich:
>
> Rogério already summed it up perfectly. Just to add some more
> technical info: It's not too uncommon to see a drive freeze in midst
> of fulfilling a SCSI request on faulty media due to bugs in its firmware. While this may freeze the calling 
> application and maybe
> even the whole system if one was unlucky enough to have the root
> file system on the same SCSI subsystem, remedy is usually possible by
> a) pushing eject on the drive, which is totally unspecified and
> unexpected behaviour, but may actually reset the drive and abort
> the stuck SCSI command; or by

In my case this does not help.

> b) simply waiting for the SCSI timeout specified by the application.
> When the timeout is reached, the kernel will abort and unlock the
> failed command, and the system will come back to life again.

I would say i have waited for about 5 minutes.
Before i shutdown the system i tested if the processes still exists.
None of the processes did disappear.

>
> On dvdisaster the timeout is 10min. While this might seem a high value,
> please resist the temptation to fiddle with it.

O.K.

> In Karstens case, the drive was probably already stuck before calling dvdisaster.

Yes - of course - the first thing i tried was just to read the CD.
But the CD was so bad that it was not recognized.
It was my second idea to use dvdisaster to check the CD.

I tested the CD on 3 different drives and i could read it only on the 4th drive.
Yesterday it was possible to read the file on the first drive, that's really interesting.

> Since dvdisaster queries all connected drives for some
> of their properties while preparing its main window, it hung up right
> off the box. In command line mode, the failure would probably have been
> deferred until the first read operation. But anyways, these are really
> firmware bugs which can only be corrected by the drive manufacturer,
> and neither the kernel nor dvdisaster can work around them in a meaningful way.

It's very simple why i rise this bug.
I give up to use CD's and DVD's, because they are more expensive and reliable than hard disks.
The other thing is that my DVD-burner GH22NP20 has give up to write after only a few DVD's in 2 years.

So the last time i use dvdisaster was on debian squeeze.
I assumed that it was not working any more after my upgrade to wheezy.
That's all.

>
> Greetings,
>   Carsten
>

Thank you all for your advise.

Cheers
Karsten