errors from external USB disk

[Matthias Apitz]

El día Thursday, February 27, 2014 a las 06:52:59PM +0100, Matthias Apitz escribió:

> I was today reading the entire disk with
> 
> # dd if=/dev/da0 of=/dev/null bs=1m
> 
> and after around 700 GByte it terminated with:
> 
> dd: /dev/da0: Input/output error
> 712870+0 records in
> 712870+0 records out

The bad block is there; if I restart the reading from 10 blocks before this
point, it stops at the same block:

# dd if=/dev/da0 of=/dev/null bs=1m skip=712860
dd: /dev/da0: Input/output error
10+0 records in
10+0 records out
10485760 bytes transferred in 4.017767 secs (2609848 bytes/sec)


	matthias
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