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.Dd September 10, 2005 .Dt MOUNT_TMPFS 8 .Os .Sh NAME .Nm mount_tmpfs .Nd mount an efficient memory file system .Sh SYNOPSIS .Nm .Op Fl g Ar group .Op Fl m Ar mode .Op Fl n Ar nodes .Op Fl o Ar options .Op Fl s Ar size .Op Fl u Ar user .Ar tmpfs .Ar mount_point .Sh DESCRIPTION The .Nm command attaches an instance of the efficient memory file system to the global file system namespace. The directory specified by .Ar mount_point is converted to an absolute path before use.
p The following options are supported: l -tag -width XoXoptions t Fl g Ar group Specifies the group name or GID of the root inode of the file system. t Fl m Ar mode Specifies the mode (in octal notation) of the root inode of the file system. t Fl n Ar nodes Specifies the maximum number of nodes available to the file system. t Fl o Ar options Options are specified with a .Fl o flag followed by a comma-separated string of options. See the .Xr mount 8 man page for possible options and their meanings. t Fl s Ar size Specifies the total file system size in bytes. If zero is given (the default), the available amount of memory (including main memory and swap space) will be used. Note that four megabytes are always reserved for the system and cannot be assigned to the file system. t Fl u Ar user Specifies the user name or UID of the root inode of the file system. .El
p Every option that accepts a numerical value as its argument can take a trailing .Sq b to indicate bytes (the default), a trailing .Sq k to indicate kilobytes, a trailing .Sq M to indicate megabytes or a trailing .Sq G to indicate gigabytes. .Sh SEE ALSO .Xr fstab 5 , .Xr mount 8 , .Xr tmpfs 9 .Sh HISTORY The .Nm utility first appeared in .Nx 4.0 . .Sh BUGS This file system is experimental.