Create new geli file system using existing key

Kevin Oberman rkoberman at
Fri Sep 18 22:43:50 UTC 2020

I suspect the answer to this is "you can't" and I can understand some
strong arguments against it, but I have a case where it would be handy and
not a security risk.

Can I initialize a GELI partition using the same key I am currently using
for teh file system it is replacing? I am moving to a new computer and
would love to keep the key (not pass phrase) I am currently using as it
will greatly simplify my backup procedure.

I could dd copy the existing raw, encrypted partition, but my new system
has a larger disk and dd of a partition results in the partition being
resized to match the source partition size.
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman at
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683

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