On 12/12/2017 08:41 AM, Wells, Roger K. wrote:
I have existing systems with un-encrypted disks.
I have tried unsuccessfully to encrypt them using LUKS.
Has anyone out there been able to encrypt an existing system (after the fact,
so to speak)?
You can do that with cryptsetup-reencrypt, but it needs to be able to make
space for the ~2MB LUKS header ahead of the filesystem in the partition. That's
a fairly risky operation -- shrinking the filesystem slightly and shifting it
over. An alternative is LUKS with a detached header, but maintaining that
relationship is an administrative headache with a severe penalty for error.
--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.
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