NILFS-RESIZE man page on Archlinux

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       nilfs-resize - resize NILFS file system volume size

       nilfs-resize [options] device [size]

       The  nilfs-resize  program  will resize NILFS2 file systems.  It can be
       used to enlarge or shrink a mounted  file  system  located  on  device.
       This  feature is only available on the kernel supporting on-line resiz‐
       ing.  Resizing for unmounted file systems are not supported at present.

       The size parameter specifies the requested new size of the  filesystem.
       The  size  of  the  filesystem may never be larger than the size of the
       partition.  Optionally, the size parameter may be suffixed  by  one  of
       the  following  units  designators: ´s´, ´K´, ´M´, ´G´, or ´T´, for 512
       byte sectors, kilobytes, magabytes, gigabytes,  or  terabytes,  respec‐
       tively.	 If  size  parameter  is not specified, it will default to the
       size of the partition.

       This program does not manipulate the size of partitions.	 If  you  wish
       to  enlarge a filesystem, you must make sure you can expand the size of
       the underlying partition first.	This can be  done  using  fdisk(8)  by
       deleting	 the  partition	 and recreating it with a larger size or using
       lvextend(8), if you are using the logical volume manager lvm(8)

       If you wish to shrink a nilfs2 partition,  first	 use  nilfs-resize  to
       shrink the size of filesystem.  Then you may use fdisk(8) to shrink the
       size of the partition.  When shrinking the size of the partition,  make
       sure  you  do  not  make	 it  smaller  than  the new size of the nilfs2

       This command is valid only for mounted NILFS2 file  systems,  and  will
       fail if the device has no active mounts.

       -y, --yes, --assume-yes
	      Assume Yes to all queries and do not prompt.

       -h, --help
	      Display help message and exit.

       -v, --verbose
	      Verbose mode.

       -V, --version
	      Display version and exit.

       Ryusuke Konishi <>

       nilfs-resize  is	 part of the nilfs-utils package and is available from

       nilfs(8), nilfs-tune(8), fdisk(8), lvextend(8), lvm(8).

nilfs-utils version 2.2		   Apr 2014		       NILFS-RESIZE(8)

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