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umount.nilfs2 - Man Page

unmount NILFS2 file systems


umount [-t nilfs2] [-dfilnrv] device | dir [...]

umount.nilfs2 [-nrv] dir [...]

umount.nilfs2 [-V]


umount.nilfs2 detaches the NILFS2 file system(s) mentioned from the file hierarchy. This is the umount helper for NILFS2 to shutdown the garbage collector nilfs_cleanerd(8) before detaching the file system.  Usually it should be invoked through umount(8).


See umount(8) for the full set of options.  Commonly used options with NILFS2 are as follows:


Print version and exit.


Don't call umount.nilfs2.  Valid for umount(8).


Unmount without writing in /etc/mtab.  This option must be used carefully because mount.nilfs2 and umount.nilfs2 use the table to store the process ID of nilfs_cleanerd(8).


In case unmounting fails, try to remount read-only.


Verbose mode.

The Loop Device

umount.nilfs2 will free the loop device (if any) associated with the mount, in case it finds the option `loop=...' in /etc/mtab.  The -d option, which also allows umount(8) to free the loop device without the `loop=...' option, is not supported.


umount.nilfs2 is written by Ryusuke Konishi <konishi.ryusuke@gmail.com> for NILFS2, based on the umount program included in the util-linux package.


umount.nilfs2 is part of the nilfs-utils package and is available from https://nilfs.sourceforge.io.

See Also

nilfs(8), umount(8), mount.nilfs2(8), nilfs_cleanerd(8).

Referenced By

mount.nilfs2(8), nilfs(8), nilfs_cleanerd(8).

Apr 2014 nilfs-utils version 2.2