'\" t
.\"     Title: cryptsetup-isluks
.\"    Author: [see the "AUTHOR(S)" section]
.\" Generator: Asciidoctor 2.0.20
.\"      Date: 2024-04-14
.\"    Manual: Maintenance Commands
.\"    Source: cryptsetup 2.7.2
.\"  Language: English
.\"
.TH "CRYPTSETUP\-ISLUKS" "8" "2024-04-14" "cryptsetup 2.7.2" "Maintenance Commands"
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.SH "NAME"
cryptsetup-isLuks \- check if a device is a LUKS device
.SH "SYNOPSIS"
.sp
\fBcryptsetup \fIisLuks\fP [<options>] <device>\fP
.SH "DESCRIPTION"
.sp
Returns true, if <device> is a LUKS device, false otherwise.
.sp
Use option \-v to get human\-readable feedback.
\*(AqCommand successful.\*(Aq means the device is a LUKS device.
.sp
By specifying \-\-type you may query for specific LUKS version.
.sp
\fB<options>\fP can be [\-\-header, \-\-type, \-\-disable\-locks].
.SH "OPTIONS"
.sp
\fB\-\-batch\-mode, \-q\fP
.RS 4
Suppresses all confirmation questions. Use with care!
.sp
If the \-\-verify\-passphrase option is not specified, this option also
switches off the passphrase verification.
.RE
.sp
\fB\-\-debug or \-\-debug\-json\fP
.RS 4
Run in debug mode with full diagnostic logs. Debug output lines are
always prefixed by \fB#\fP.
.sp
If \-\-debug\-json is used, additional LUKS2 JSON data structures are printed.
.RE
.sp
\fB\-\-disable\-locks\fP
.RS 4
Disable lock protection for metadata on disk. This option is valid
only for LUKS2 and ignored for other formats.
.sp
\fBWARNING:\fP 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).
.RE
.sp
\fB\-\-header <device or file storing the LUKS header>\fP
.RS 4
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.
.sp
For commands that change the LUKS header (e.g. \fIluksAddKey\fP),
specify the device or file with the LUKS header directly as the LUKS
device.
.RE
.sp
\fB\-\-help, \-?\fP
.RS 4
Show help text and default parameters.
.RE
.sp
\fB\-\-type <device\-type>\fP
.RS 4
Specifies required device type, for more info read \fIBASIC ACTIONS\fP section in \fBcryptsetup\fP(8).
.RE
.sp
\fB\-\-usage\fP
.RS 4
Show short option help.
.RE
.sp
\fB\-\-verbose, \-v\fP
.RS 4
Print more information on command execution.
.RE
.sp
\fB\-\-version, \-V\fP
.RS 4
Show the program version.
.RE
.SH "REPORTING BUGS"
.sp
Report bugs at \c
.MTO "cryptsetup\(atlists.linux.dev" "\fBcryptsetup mailing list\fP"
or in \c
.URL "https://gitlab.com/cryptsetup/cryptsetup/\-/issues/new" "\fBIssues project section\fP" "."
.sp
Please attach output of the failed command with \-\-debug option added.
.SH "SEE ALSO"
.sp
.URL "https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions" "\fBCryptsetup FAQ\fP" ""
.sp
\fBcryptsetup\fP(8), \fBintegritysetup\fP(8) and \fBveritysetup\fP(8)
.SH "CRYPTSETUP"
.sp
Part of \c
.URL "https://gitlab.com/cryptsetup/cryptsetup/" "\fBcryptsetup project\fP" "."