BTRFS-ZERO-LOG(8) System Manager's Manual BTRFS-ZERO-LOG(8)NAME
btrfs-zero-log - clear out log tree.
SYNOPSIS
btrfs-zero-log <dev>
DESCRIPTION
btrfs-zero-log will remove the log tree if log tree is corrupt, which will allow you to mount the filesystem again. The common case where
this happens has been fixed a long time ago, so it is unlikely that you will see this particular problem.
EXIT CODE
btrfs-zero-log will return 0 exit code if no error happened. Other exit code means some problems happened.
AUTHOR
Written by Shilong Wang and Wenruo Qu.
COPYRIGHT
Copyright (C) 2013 Fujitsu, Inc. License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO mkfs.btrfs(8)BTRFS-ZERO-LOG(8)
Check Out this Related Man Page
MKFS.BTRFS(8) System Manager's Manual MKFS.BTRFS(8)NAME
mkfs.btrfs - create an btrfs filesystem
SYNOPSIS
mkfs.btrfs [ -A alloc-start ] [ -b byte-count ] [ -d data-profile ] [ -l leafsize ] [ -L label ] [ -m metadata profile ] [ -n nodesize
] [ -s sectorsize ] [ -h ] [ -V ] device [ device ... ]
DESCRIPTION
mkfs.btrfs is used to create an btrfs filesystem (usually in a disk partition, or an array of disk partitions). device is the special file
corresponding to the device (e.g /dev/sdXX ). If multiple devices are specified, btrfs is created spanning across the specified
devices.
OPTIONS -A, --alloc-start offset
Specify the offset from the start of the device to start the btrfs filesystem. The default value is zero, or the start of the
device.
-b, --byte-count size
Specify the size of the resultant filesystem. If this option is not used, mkfs.btrfs uses all the available storage for the filesys-
tem.
-d, --data type
Specify how the data must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single.
-l, --leafsize size
Specify the leaf size, the least data item in which btrfs stores data. The default value is the page size.
-L, --label name
Specify a label for the filesystem.
-m, --metadata profile
Specify how metadata must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single.
-n, --nodesize size
Specify the nodesize. By default the value is set to the pagesize.
-s, --sectorsize size
Specify the sectorsize, the minimum block allocation.
-V, --version
Print the mkfs.btrfs version and exit.
AVAILABILITY
mkfs.btrfs is part of btrfs-progs. Btrfs is currently under heavy development, and not suitable for any uses other than benchmarking and
review. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.
SEE ALSO btrfsck(8)MKFS.BTRFS(8)
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