On Wednesday 20 April 2005 08:34 pm, david walcroft wrote:Autoclave uses Shred and I use ext3 filesystem and Autoclave wiped my disk but I didn't test the disk (WD 120GB) to see how it performed.
How to wipe a HD, please?
Give this a try ,its a boot floppy and overwrites from 1 > 25 times as selected (but slowly!!!)
Try man shred
Shred is the linux utility for cleaning hard drives.
Delete FILE(s) if --remove (-u) is specified. The default is not to
remove the files because it is common to operate on device files like
/dev/hda, and those files usually should not be removed. When operat-
ing on regular files, most people use the --remove option.
CAUTION: Note that shred relies on a very important assumption: that
the filesystem overwrites data in place. This is the traditional way
to do things, but many modern filesystem designs do not satisfy this
assumption. The following are examples of filesystems on which shred
is not effective:
* log-structured or journaled filesystems, such as those supplied with
AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.)
* filesystems that write redundant data and carry on even if some
fail, such as RAID-based filesystems
* filesystems that make snapshots, such as Network Applianceâ€™s NFS
* filesystems that cache in temporary locations, such as NFS
version 3 clients
* compressed filesystems
In addition, file system backups and remote mirrors may contain copies
of the file that cannot be removed, and that will allow a shredded
file to be recovered later.