MKFS(8) MKFS(8)
NAME
mkfs, mkext - archive or update a file system
SYNOPSIS
disk/mkfs [-aprvxS] [-d dest] [-n name] [-s source] [-u
users] [-z n] [-G group] [-U user] proto ...
disk/mkext [-d name] [-f] [-h] [-T] [-u] [-v] [ file ... ]
DESCRIPTION
Mkfs copies files from the file tree source (default /) to a
kfs file system (see kfs(4)) assumed to be mounted on dest
(default: /n/kfs). The proto files are read, and any files
specified in them that are out of date are copied to dest.
See proto(6) for the description of file system prototype
files.
Mkfs by default copies only those files that are out of
date. Such a file is first copied into a temporary file in
the appropriate destination directory 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 are archived, not just
those out of date.
-x For use with -a, this option writes a list of
file names, dates, and sizes to standard output
rather than producing an archive file.
-n name Use kfs.name.cmd as the name of the command file
for the kfs(4) assumed to be mounted on dest.
-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 Before copying any other file, copy file users
into dest/adm/users, and if the -n option was
given, also issue the kfs(4) command users to
update kfs's own user list.
-v Print the names of all of the files as they are
copied.
-z n Copy files assuming kfs is using a block size of
n bytes (default 1024). If a block contains only
0-valued bytes, it is not copied.
-S For use with the -d option, make owner and group
of each file copied match the original.
-G group Force all files copied to have the given group.
Page 1 Plan 9 (printed 11/22/24)
MKFS(8) MKFS(8)
-U user Force all files copied to be owned by the given
user.
Mkext unpacks an archive created by the -a option of mkfs,
read from the standard input. If one or more files are
specified on the command line, only those files are
unpacked. If a file is a directory, all files and subdirec-
tories 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 cre-
ated. The options are:
-d dir
Treat dir (default `/') as the root directory when
unpacking the archive.
-h Print headers for the files on standard output instead
of unpacking the files.
-T Restore the modification times of the files.
-u Set the owners of the files created to correspond to
those in the archive and restore the modification times
of the files.
-v Print the names and sizes of files as they are
extracted.
EXAMPLES
Make an archive to establish a new file system (assuming
that the output file arch is not referenced by proto):
bind '#U' /n/local
disk/mkfs -a -s /n/local proto > arch
Unpack that archive on another machine:
mount tcp!server /n/remote
disk/mkext -u -d /n/remote < arch
FILES
/lib/proto directory of prototype files.
/lib/proto/all contains a single + (archive any
directory structure)
SOURCE
/appl/cmd/disk/mkfs.b
/appl/cmd/disk/mkext.b
SEE ALSO
fs(1), kfs(4), proto(6), kfscmd(8)
Page 2 Plan 9 (printed 11/22/24)