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+.TH "BTRFS-MAP-LOGICAL" "8" "Feb 14, 2024" "6.7.1" "BTRFS"
+.SH NAME
+btrfs-map-logical \- map btrfs logical extent to physical extent
+.SH SYNOPSIS
+.sp
+\fBbtrfs\-map\-logical\fP <options> <device>
+.SH DESCRIPTION
+.sp
+\fBbtrfs\-map\-logical\fP can be used to find out what the physical offsets are
+on the mirrors, the result is dumped to stdout by default.
+.sp
+Mainly used for debug purpose.
+.SH OPTIONS
+.INDENT 0.0
+.TP
+.B \-l|\-\-logical <logical_num>
+Logical extent to map.
+.TP
+.B \-c|\-\-copy <copy>
+Copy of the extent to read(usually 1 or 2).
+.TP
+.B \-o|\-\-output <filename>
+Output file to hold the extent.
+.TP
+.B \-b|\-\-bytes <bytes>
+Number of bytes to read.
+.UNINDENT
+.SH EXIT STATUS
+.sp
+\fBbtrfs\-map\-logical\fP will return 0 if no error happened.
+If any problems happened, 1 will be returned.
+.SH SEE ALSO
+.sp
+\fI\%mkfs.btrfs(8)\fP
+.\" Generated by docutils manpage writer.
+.