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
MKFS(8) System Manager's Manual MKFS(8) NAME
mkfs, mkext - archive or update a file system SYNOPSIS
disk/mkfs [-aprv] [-n name] [-s source] [-u users] [-z n] proto ... disk/mkext [-d name] [-u] [-h] [-v] file ... DESCRIPTION
Mkfs copies files from the file tree source (default /) to a kfs file system (see kfs(4)). The kfs service is mounted on /n/kfs, and /adm/users is copied to /n/kfs/adm/users. The proto files are read, and any files specified in them that are out of date are copied to /n/kfs. Each line of the proto file specifies a file to copy. Indentation is significant, with each level of indentation corresponding to a level in the file tree. Fields within a line are separated by white space. The first field is the last path element in the destination file tree. The second field specifies the permissions. The third field is the owner of the file, and the fourth is the group owning the file. The fifth field is the name of the file from which to copy; this file is read from the current name space, not the source file tree. All fields except the first are optional. Names beginning with a are expanded as environment variables. If the first file specified in a directory is all of the files in that directory are copied. If the first file is all of the files are copied, and all subdirectories are recursively copied. Mkfs copies only those files that are out of date. Such a file is first copied into a temporary file in the appropriate destination direc- tory and then moved to the destination file. Files in the kfs file system that are not specified in the proto file are not updated and not removed. The options to mkfs are: a Instead of writing to a kfs file system, write an archive file to standard output, suitable for mkext. All files in proto, not just those out of date, are archived. n name Use kfs.name as the name of the kfs service (default kfs). p Update the permissions of a file even if it is up to date. r Copy all files. s source Copy from files rooted at the tree source. u users Copy file users into /adm/users in the new system. v Print the names of all of the files as they are copied. z n Copy files assuming kfs block n (default 1024) bytes long. If a block contains only 0-valued bytes, it is not copied. Mkext unpacks archive files made by the -a option of mkfs. The -d option specifies a directory (default /n/kfs) to serve as the root of the unpacked file system. The -u option, to be used only when initializing a new fs(4) file system, sets the owners of the files created to correspond to those in the archive and restores the modification times of the files. (This is only permitted at the initial load of the files into a file system.) Each file on the command line is unpacked in one pass through the archive. If the file is a directory, all files and subdirectories of that directory are also unpacked. When a file is unpacked, the entire path is created if it does not exist. If no files are specified, the entire archive is unpacked; in this case, missing intermediate directories are not created. The -v option prints the names and sizes of files as they are extracted; -h prints headers for the files on standard output instead of unpacking the files. EXAMPLES
Make an archive to establish a new file system: disk/mkfs -a -u files/adm.users -s dist proto > arch Unpack that archive onto a new file system: srv il!newfs mount -c /srv/il!newfs /n/newfs disk/mkext -u -d /n/newfs < arch FILES
/lib/proto directory of prototype files. /lib/proto/portproto generic prototype file. SOURCE
/sys/src/cmd/disk/mkfs.c /sys/src/cmd/disk/mkext.c SEE ALSO
prep(8), kfscmd(8), wren(3), pip(8) MKFS(8)