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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | REPORTING BUGS | SEE ALSO | CRYPTSETUP |
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CRYPTSETUP-LUKSSUSPEND(8) Maintenance Commands CRYPTSETUP-LUKSSUSPEND(8)
cryptsetup-luksSuspend - suspends an active device and wipes the
key
cryptsetup luksSuspend [<options>] <name>
Suspends an active device (all IO operations will block and
accesses to the device will wait indefinitely) and wipes the
encryption key from kernel memory. Needs kernel 2.6.19 or later.
While the luksSuspend operation wipes encryption keys from
memory, it does not remove possible plaintext data in various
caches or in-kernel metadata for mounted filesystems.
After this operation, you have to use luksResume to reinstate the
encryption key and unblock the device or close to remove the
mapped device.
<options> can be [--header, --disable-locks].
WARNING: Never suspend the device on which the cryptsetup binary
resides.
--batch-mode, -q
Suppresses all confirmation questions. Use with care!
If the --verify-passphrase option is not specified, this
option also switches off the passphrase verification.
--debug or --debug-json
Run in debug mode with full diagnostic logs. Debug output
lines are always prefixed by #.
If --debug-json is used, additional LUKS2 JSON data
structures are printed.
--disable-locks
Disable lock protection for metadata on disk. This option is
valid only for LUKS2 and ignored for other formats.
WARNING: Do not use this option unless you run cryptsetup in
a restricted environment where locking is impossible to
perform (where /run directory cannot be used).
--header <device or file storing the LUKS header>
Use a detached (separated) metadata device or file where the
LUKS header is stored. This option allows one to store
ciphertext and LUKS header on different devices.
For commands that change the LUKS header (e.g. luksAddKey),
specify the device or file with the LUKS header directly as
the LUKS device.
--help, -?
Show help text and default parameters.
--usage
Show short option help.
--version, -V
Show the program version.
Report bugs at cryptsetup mailing list
<[email protected]> or in Issues project section
<https://gitlab.com/cryptsetup/cryptsetup/-/issues/new>.
Please attach output of the failed command with --debug option
added.
Cryptsetup FAQ
<https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions>
cryptsetup(8), integritysetup(8) and veritysetup(8)
Part of cryptsetup project
<https://gitlab.com/cryptsetup/cryptsetup/>. This page is part of
the Cryptsetup ((open-source disk encryption)) project.
Information about the project can be found at
⟨https://gitlab.com/cryptsetup/cryptsetup⟩. If you have a bug
report for this manual page, send it to [email protected]. This
page was obtained from the project's upstream Git repository
⟨https://gitlab.com/cryptsetup/cryptsetup.git⟩ on 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2024-06-11.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
cryptsetup 2.8.0-git 2024-06-07 CRYPTSETUP-LUKSSUSPEND(8)
Pages that refer to this page: cryptsetup(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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