Re: bcwipe doesn't wipe any block device

[Nikos Vassiliadis]

On Wednesday 14 March 2007 16:44, Thomas Vogt wrote:
> Hello
> 
> Has someone ever tried to wipe a block device on freebsd 6.2 with
> bcwipe?
> 
> I tried
> bcwipe -bvmd /dev/aacd1
> 
> I get:
> Writing to /dev/aacd1: Invalid argument
> I tried slices too but it i got the same error.
> 
> dd can overwrite my disk several times but perhaps someone can give me a
> hint how to wipe a disk with bcwipe.

It must be the way it access the device, that
causes the problem.

I suggest trying the following:
1) Create a filesystem covering the whole disk,
2) Fill up the disk creating a file the size of
   the filesystem on it.
3) have bcwipe operate on the file instead of
   the raw device. I assume it does this.

I am not familiar with bcwipe...

Nikos
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bcwipe doesn't wipe any block device

[Thomas Vogt]

Hello

Has someone ever tried to wipe a block device on freebsd 6.2 with
bcwipe?

I tried
bcwipe -bvmd /dev/aacd1

I get:
Writing to /dev/aacd1: Invalid argument
I tried slices too but it i got the same error.

dd can overwrite my disk several times but perhaps someone can give me a
hint how to wipe a disk with bcwipe.

Regards,
Thomas
-- 
Terry Lambert:
"It is not unix's job to stop you from shooting your foot. If you so
choose to do so, then it is UNIX's job to deliver Mr. Bullet to Mr Foot
in the most efficient way it knows."

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