7ffccaf0c3
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* editors set highliting according to the extensions
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* we can link to them from the wiki
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Signed-off-by: David Sterba <dsterba@suse.cz>
38 lines
764 B
Plaintext
38 lines
764 B
Plaintext
btrfs-map-logical(8)
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====================
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NAME
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----
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btrfs-map-logical - map btrfs logical extent to physical extent
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SYNOPSIS
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--------
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*btrfs-map-logical* <options> <device>
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DESCRIPTION
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-----------
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*btrfs-map-logical* can be used to find out what the physical offsets are
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on the mirrors, the result is dumped into stdout in default.
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Mainly used for debug purpose.
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OPTIONS
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-------
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-l|--logical <logical_num>::
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Logical extent to map.
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-c|--copy <copy>::
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Copy of the extent to read(usually 1 or 2).
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-o|--output <filename>::
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Output file to hold the extent.
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-b|--bytes <bytes>::
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Number of bytes to read.
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EXIT STATUS
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-----------
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*btrfs-map-logical* will return 0 if no error happened.
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If any problems happened, 1 will be returned.
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SEE ALSO
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--------
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`mkfs.btrfs`(8)
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