On a Linux system, be it Debian, Redhat or any distro, I would like to encrypt the disk on the fly.
That is, encrypt the disk transparently to the OS whilst it is running, reboots, shuts down etc. In addition it should not destroy data. I know there is (commercial) software for windows that does it. But I need a Linux solution.
The solutions I know of do not support this as far as I can see (luks, truecrypt...). Maybe there is some hack or work around available?