Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

mkfs(1m) [v7 man page]

MKFS(1M)																  MKFS(1M)

NAME
mkfs - construct a file system SYNOPSIS
/etc/mkfs special proto DESCRIPTION
Mkfs constructs a file system by writing on the special file special according to the directions found in the prototype file proto. The prototype file contains tokens separated by spaces or new lines. The first token is the name of a file to be copied onto block zero as the bootstrap program, see bproc(8). The second token is a number specifying the size of the created file system. Typically it will be the number of blocks on the device, perhaps diminished by space for swapping. The next token is the number of i-nodes in the i-list. The next set of tokens comprise the specification for the root file. File specifications consist of tokens giving the mode, the user-id, the group id, and the initial contents of the file. The syntax of the contents field depends on the mode. The mode token for a file is a 6 character string. The first character specifies the type of the file. (The characters -bcd specify regu- lar, block special, character special and directory files respectively.) The second character of the type is either u or - to specify set- user-id mode or not. The third is g or - for the set-group-id mode. The rest of the mode is a three digit octal number giving the owner, group, and other read, write, execute permissions, see chmod(1). Two decimal number tokens come after the mode; they specify the user and group ID's of the owner of the file. If the file is a regular file, the next token is a pathname whence the contents and size are copied. If the file is a block or character special file, two decimal number tokens follow which give the major and minor device numbers. If the file is a directory, mkfs makes the entries . and .. and then reads a list of names and (recursively) file specifications for the entries in the directory. The scan is terminated with the token $. If the prototype file cannot be opened and its name consists of a string of digits, mkfs builds a file system with a single empty directory on it. The size of the file system is the value of proto interpreted as a decimal number. The number of i-nodes is calculated as a func- tion of the filsystem size. The boot program is left uninitialized. A sample prototype specification follows: /usr/mdec/uboot 4872 55 d--777 3 1 usr d--777 3 1 sh ---755 3 1 /bin/sh ken d--755 6 1 $ b0 b--644 3 1 0 0 c0 c--644 3 1 0 0 $ $ SEE ALSO
filsys(5), dir(5), bproc(8) BUGS
There should be some way to specify links. MKFS(1M)

Check Out this Related Man Page

mkproto(8)							    Unsupported 							mkproto(8)

Name
       mkproto - construct a prototype file system

Syntax
       /etc/mkproto special proto

Description
       The  command  is used to bootstrap a new file system.  First a new file system is created using The command is then used to copy files from
       the old file system into the new file system according to the directions found in the prototype file proto.  The  prototype  file  contains
       tokens  separated by spaces or new lines.  The first tokens comprise the specification for the root directory.  File specifications consist
       of tokens giving the mode, the user-id, the group id, and the initial contents of the file.  The syntax of the contents	field  depends	on
       the mode.

       The mode token for a file is a 6 character string.  The first character specifies the type of the file.	(The characters -bcd specify regu-
       lar, block special, character special and directory files respectively.)  The second character of the type is either u or - to specify set-
       user-id	mode or not.  The third is g or - for the set-group-id mode.  The rest of the mode is a three digit octal number giving the owner,
       group, and other read, write, execute permissions.  See

       Two decimal number tokens come after the mode; they specify the user and group ID's of the owner of the file.

       If the file is a regular file, the next token is a pathname whence the contents and size are copied.

       If the file is a block or character special file, two decimal number tokens follow which give the major and minor device numbers.

       If the file is a directory, makes the entries .	and ..	and then reads a list of names	and  (recursively)  file  specifications  for  the
       entries in the directory.  The scan is terminated with the token $.

       A sample prototype specification follows:

       d--777 3 1
       usr  d--777 3 1
	    sh	 ---755 3 1 /bin/sh
	    ken  d--755 6 1
		 $
	    b0	 b--644 3 1 0 0
	    c0	 c--644 3 1 0 0
	    $
       $

Restrictions
       You can only run on virgin file systems.  It should be possible to copy files into existent file systems.

See Also
       dir(5), fs(5), fsck(8), newfs(8)

																	mkproto(8)
Man Page