[TriLUG] dd limit on disks?

[Joseph Mack NA3T]

On Sun, 3 Sep 2006, Mike Seda wrote:

> Hi Joe,
> There is no dd limit that I am aware of. I have used dd to successfully clone 
> 160 GB disks in the past. You may be running into bad sectors on those 30 GB 
> disks.

That was my first theory, but it happened at the same place 
on two independant disks (same model). These disks passed 
chkdsk (not a stringent test admittedly).

I'm now trying a different sized disk on a different machine 
to see where the problem is

> Try the following command:
> dd if=<source_disk> of=<image_file> conv=noerror,sync
> The "noerror" and "sync" options tell dd to continue after read errors, e.g. 
> bad sectors, and pad the output to match the input block size.

OK. At the error spot I've filled the disk with zeroes 
so this should give a reasonable img if there's a problem at 
this spot.

Thanks Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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