secure file deletion

Andrew McDonald
Thu Feb 15 20:43:02 2001

On Thu, Feb 15, 2001 at 07:24:43PM +0100, Johan Lundberg wrote:

> Another interesting thing partly related to this (or call it off-topic):
> Has anybody used the s-bit (not sticky!) with ext2/chattr? From the
> chattr man-page:
> - When a file with the `s' attribute set is deleted, its blocks are
> - zeroed and written back to the disk.
> I have tried it, but it does not seem to work. Anybody? How is wiping and/
> or clearing handled in Reiser / ext3 or whatever they are called?
This was implemented in ext2, but removed somewhere in 1.3.x kernels IIRC. I believe it was removed due to some nasty race conditions that couldn't be easily resolved at the time. Andrew -- Andrew McDonald E-mail: