diff options
Diffstat (limited to 'sbin/mount_nullfs/mount_nullfs.8')
| -rw-r--r-- | sbin/mount_nullfs/mount_nullfs.8 | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sbin/mount_nullfs/mount_nullfs.8 b/sbin/mount_nullfs/mount_nullfs.8 index 38473fa..9ed773e 100644 --- a/sbin/mount_nullfs/mount_nullfs.8 +++ b/sbin/mount_nullfs/mount_nullfs.8 @@ -35,7 +35,7 @@ .\" SUCH DAMAGE. .\" .\" @(#)mount_null.8 8.6 (Berkeley) 5/1/95 -.\" $Id: mount_null.8,v 1.7 1997/02/22 14:32:50 peter Exp $ +.\" $Id: mount_null.8,v 1.8 1997/03/11 12:33:34 peter Exp $ .\" .Dd May 1, 1995 .Dt MOUNT_NULL 8 @@ -51,7 +51,7 @@ demonstrate the use of a null file system layer .Ar mount-point .Sh DESCRIPTION The -.Nm mount_null +.Nm command creates a null layer, duplicating a sub-tree of the file system name space under another part of the global file system namespace. @@ -68,7 +68,7 @@ A different device number for the virtual copy is returned by but in other respects it is indistinguishable from the original. .Pp The -.Nm mount_null +.Nm filesystem differs from a traditional loopback file system in two respects: it is implemented using a stackable layers techniques, and it's @@ -189,7 +189,9 @@ process when constructing other vnode stacks. .Sh CREATING OTHER FILE SYSTEM LAYERS One of the easiest ways to construct new file system layers is to make a copy of the null layer, rename all files and variables, and -then begin modifying the copy. Sed can be used to easily rename +then begin modifying the copy. +.Xr Sed 1 +can be used to easily rename all variables. .Pp The umap layer is an example of a layer descended from the @@ -228,6 +230,6 @@ UCLA Technical Report CSD-910056, .Em "Stackable Layers: an Architecture for File System Development" . .Sh HISTORY The -.Nm mount_null +.Nm utility first appeared in .Bx 4.4 . |
