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KFS(4)									KFS(4)

NAME
       kfs - disk file system

SYNOPSIS
       disk/kfs	 [ -rc ] [ -b n ] [ -f file ] [ -n name ] [ -p perm ] [ -s ] [
       -B nbuf ]

DESCRIPTION
       Kfs is an old, local user-level file server for a Plan 9 terminal  with
       a disk.	It maintains a hierarchical Plan 9 file system on the disk and
       offers 9P (see intro(5)) access to it.  Kfs begins by checking the file
       system  for  consistency,  rebuilding the free list, and placing a file
       descriptor in /srv/name, where name is the service name (default	 kfs).
       If the file system is inconsistent, the user is asked for permission to
       ream (q.v.)  the disk.  The file system is not checked if it is reamed.

       The options are

       b n    If the file system is reamed, use n byte blocks.	Larger	blocks
	      make  the file system faster and less space efficient.  1024 and
	      4096 are good choices.  N must be a multiple of 512.

       c      Do not check the file system.

       f file Use file as the disk.  The default is /dev/sdC0/fs.

       n name Use kfs.name as the name of the service.

       p perm Use perm as the initial  permissions  for	 the  command  channel
	      /srv/service.cmd; the default is 660.

       r      Ream the file system, erasing all of the old data and adding all
	      blocks to the free list.

       s      Post file descriptor zero in /srv/service	 and  read  and	 write
	      protocol messages on file descriptor one.

       B      Allocate	nbuf  in-memory file system blocks.  The default is as
	      many as will fit in 10% of memory or two megabytes, whichever is
	      smaller.

EXAMPLES
       Create  a  file	system	with  service  name  kfs.local and mount it on
       /n/kfs.

	      % disk/kfs -rb4096 -nlocal
	      % mount -c /srv/kfs.local /n/kfs

FILES
       /dev/sdC0/fs
	      Default file holding blocks.

SOURCE
       /sys/src/cmd/disk/kfs

SEE ALSO
       fossil(4), kfscmd(8), mkfs(8), prep(8), sd(3)

BUGS
       For the moment, kfs serves both the old (third edition) and new (fourth
       edition)	 versions of 9P, deciding which to serve by sniffing the first
       packet on each connection.

       Kfs doesn't allow creating files with component names  longer  than  28
       bytes.

									KFS(4)

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