On Friday, July 17, 2020 12:09:05 PM David Wright wrote: > On Fri 17 Jul 2020 at 13:22:12 (+0200), Nicolas George wrote: > > rhkra...@gmail.com (12020-07-17): > […] > > > > Among other things, should I be worried that it won't disappear on > > > power loss / reboot? > > > > Depends on what kind of disappear you want. If all you want is not to > > have to worry about cleaning up, then you are good with tmpfs. > > > > If you are worried that sensitive data may end up on disk, then encrypt > > your swap with an ephemeral key. > > In the absence of encryption, bear in mind that cleaning up only takes > place while the system boots up. Until then, everything remains on the > disk and can be examined merely by booting from, say, a USB stick instead.
Just to make sure I understand, you're talking about clean up of swap on an HDD partition, right? As far as the tmpfs stuff in RAM, it basically disappears when the power decays (after a not too long delay) and barring some kind of NSA techniques to capture it? (But, I guess I should think about encrypting swap :-(
