Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

mkproto(8) [bsd man page]

MKPROTO(8)						      System Manager's Manual							MKPROTO(8)

mkproto - construct a prototype file system SYNOPSIS
/usr/sbin/mkproto special proto DESCRIPTION
Mkproto is used to bootstrap a new file system. First a new file system is created using newfs(8). Mkproto 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 con- tains 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 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, mkproto 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 $ $ SEE ALSO
fs(5), dir(5), fsck(8), newfs(8) BUGS
There should be some way to specify links. There should be some way to specify bad blocks. Mkproto can only be run on virgin file systems. It should be possible to copy files into existent file systems. Mkproto can only copy files up to a single level indirect less 4kb. This works out to about 252Kb 4.2 Berkeley Distribution November 17, 1996 MKPROTO(8)

Check Out this Related Man Page

MKFS(1) 						      General Commands Manual							   MKFS(1)

mkfs - make a file system SYNOPSIS
mkfs [-Ldot] [-i inodes] [-b blocks] special prototype OPTIONS
-L Make a listing on standard output -d Use mod time of mkfs binary for all files -o Use a drive other than 0 or 1 (safety precaution) -t Do not test if file system fits on the medium -1 Make a version 1 file system (for backward compatibility) -i Number of i-nodes (files) -b Filesystem size EXAMPLES
mkfs /dev/fd1 proto # Make a file system on /dev/fd1 mkfs -b 360 /dev/fd1 # Make empty 360 block file system mkfs /dev/fd1 360 # Alternate way to specify the size DESCRIPTION
Mkfs builds a file system and copies specified files to it. The prototype file tells which directories and files to copy to it. If the prototype file cannot be opened, and its name is just a string of digits, an empty file system will be made with the specified number of blocks. A sample prototype file follows. The text following the # sign in the example below is comment. In real prototype files, com- ments are not allowed. boot # boot block file (ignored) 360 63 # blocks and i-nodes d--755 1 1 # root directory bin d--755 2 1 # bin dir: mode (755), uid (2), gid (1) sh ---755 2 1 /user/bin/shell # shell has mode rwxr-xr-x mv -u-755 2 1 /user/bin/mv # u = SETUID bit login -ug755 2 1 /user/bin/login# SETUID and SETGID $ # end of /bin dev d--755 2 1 # special files: tty (char), fd0 (block) tty c--777 2 1 4 0 # uid=2, gid=1, major=4, minor=0 fd0 b--644 2 1 2 0 360 # uid, gid, major, minor, blocks $ # end of /dev user d--755 12 1 # user dir: mode (755), uid (12), gid (1) ast d--755 12 1 # /user/ast $ # /user/ast is empty $ # end of /user $ # end of root directory The first entry on each line (except the first 3 and the $ lines, which terminate directories) is the name the file or directory will get on the new file system. Next comes its mode, with the first character being -dbc for regular files, directories, block special files and character special files, respectively. The next two characters are used to specify the SETUID and SETGID bits, as shown above. The last three characters of the mode are the rwx protection bits. Following the mode are the uid and gid. For special files, the major and minor devices are needed. The size in blocks must also be speci- fied for block special files (the MINIX block size is 1K; this can only be changed by changing BLOCK_SIZE and then recompiling the operat- ing system). The maximum size of a file system is 1 Gb for a version 2 file system, and 64 Mb for a version 1 file system. Alas the 8086 fsck runs out of memory on a V2 file system larger than 128 Mb, so for the 8086 version of MINIX you have to limit yourself to file systems of that size. SEE ALSO
mkproto(1), fsck(1), mount(1). MKFS(1)
Man Page