-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 by default dd uses 512 byte blocks. If you use just "plain" dd if= of= it will indeed take several hours. Try using more large blocks. eg: dd if=/dev/zero of=/dev/sda bs=4096k This should finish _a lot_ faster ;) Baenen Eric P Contr AFRL/HEC wrote:
List members,
I'm running SUSE 9.2 Pro... can anyone recommend an app or technique for securely wiping the contents on an external usb hard drive with a single 120GB reiserfs partition?
- unfortunately because of the case design - cracking the case and removing the drive so it can be connected directly to an IDE controller is not an option
- fdisk'ing the drive, just wiping the partition table, reformating, etc. are not sufficient - I need an option that will make the drive's current contents reasonably unrecoverable
- it's been suggested that I repeatedly do "dd i=/dev/urandom o=/dev/sda && dd i=/dev/zero o=/dev/sda" - and I will do this if necessary - but would rather not take the days that this is likely to take
- it's also been suggested to use 'shred' - however, in the man pages for shred is says that because of the redundancies and protections built into the Reiser filesystem - that shed will not truely and securely wipe the files - there is a reasonable chance of recovery after shreddig files on Reiser
Thanks,
Eric
Eric Baenen Program Manager - Scientific Network Environments General Dynamics - Advanced Information Systems
Phone: 937-255-8180 FAX: 937-255-8845 2255 H Street (AFRL/HEC) Area B Bldg 248 Rm 108 Wright Patterson AFB, OH 45433
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