Is it supported to add LUKS encryption to not yet encrypted device?
Issue
- Is it supported to add LUKS encryption to not yet encrypted device?
- How to add LUKS encryption to not yet encrypted device.
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Can existing devices be encrypted (LUKS) and retain the data?
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When I try to encrypt an unencrypted, but currently in-use device, I get the message below indicating I will lose all existing data. Is there not a way to use LUKS so that it does not delete the data?
# cryptsetup ... WARNING: Device /dev/sdN already contains a ... signature. WARNING! ======== This will overwrite data on /dev/sdN irrevocably. Are you sure? (Type 'yes' in capital letters):
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Environment
- Red Hat Enterprise Linux (RHEL) 9
- Red Hat Enterprise Linux (RHEL) 8
- Red Hat Enterprise Linux (RHEL) 7
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