Stefan Schumacher wrote:
> * Bang Jun-Young (junyoung@mogua.com) wrote:
> 
> > Is there a disk wipe out utility for NetBSD, a program that fills
> > unused blocks of the file system with 0 without destroying data?
> 
> I'm using bcwipe from Jetico to wipe out data, but AFAIK it supports
> only Gutman and US DoD scheme, not wiping with 0.
> Maybe you can hack the source to get zeros, because it also supports
> wiping of file slacks (although I don't know if it is needed for backup
> purposes).
> 
> > It's mostly used for security but I need it for backup purpose
> > so the entire image of the NetBSD partition is compressed in less
> > size.
> 
> Shouldn't 
> 	dd if=/dev/zero of=/tmp/wipe bs=1m ; rm /tmp/wipe
> be enough?	
> 

This simple method serves my purpose very well. :-) I was thinking of
something complicated like GUI-based wipeout utilities running on Windows.

Thanks,

Jun-Young