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TMPFS(5)		      File Formats Manual		      TMPFS(5)

NAME
       tmpfs --	efficient memory file system

SYNOPSIS
       To  compile  this  driver  into the kernel, place the following line in
       your kernel configuration file:

	     options TMPFS

       Alternatively, to load the driver as a module at	boot time,  place  the
       following line in loader.conf(5):

	     tmpfs_load="YES"

DESCRIPTION
       The  tmpfs  driver  will	permit the FreeBSD kernel to access tmpfs file
       systems.

OPTIONS
       The following options are available when	mounting tmpfs file systems:

       gid     Specifies the group ID of the root inode	of  the	 file  system.
	       Defaults	to the mount point's GID.

       uid     Specifies  the  user  ID	 of the	root inode of the file system.
	       Defaults	to the mount point's UID.

       mode    Specifies the mode (in octal notation) of the root inode	of the
	       file system.  Defaults to the mount point's mode.

       inodes  Specifies the maximum number of nodes  available	 to  the  file
	       system.	If not specified, the file system chooses a reasonable
	       maximum	based  on  the	file system size, which	can be limited
	       with the	size option.

       size    Specifies the total file	system size in bytes.	If  zero  (the
	       default)	 or a value larger than	SIZE_MAX - PAGE_SIZE is	given,
	       the available amount of memory (including main memory and  swap
	       space) will be used.

       maxfilesize
	       Specifies the maximum file size in bytes.  Defaults to the max-
	       imum possible value.

EXAMPLES
       To mount	a tmpfs	memory file system:

	     mount -t tmpfs tmpfs /tmp

SEE ALSO
       nmount(2), unmount(2), fstab(5),	mdmfs(8), mount(8)

HISTORY
       The tmpfs driver	first appeared in FreeBSD 7.0.

AUTHORS
       The  tmpfs  kernel  implementation was written by Julio M. Merino Vidal
       <jmmv@NetBSD.org> as a Google SoC project.

       Rohit Jalan and others ported it	from NetBSD to FreeBSD.

       This manual page	was written by Xin LI <delphij@FreeBSD.org>.

BUGS
       Some file system	mount time options may not be well-supported.

GNU				April 23, 2012			      TMPFS(5)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | HISTORY | AUTHORS | BUGS

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=tmpfs&manpath=FreeBSD+9.1-RELEASE>

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