191 lines
3.3 KiB
Text
191 lines
3.3 KiB
Text
.TH MKFS 8
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.SH NAME
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mkfs, mkext \- archive or update a file system
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.SH SYNOPSIS
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.B disk/mkfs
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.RB [ -aprvxU ]
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.RB [ -d
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.IR root ]
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.RB [ -n
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.IR name ]
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.RB [ -s
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.IR source ]
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.RB [ -u
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.IR users ]
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.RB [ -z
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.IR n ]
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.I proto ...
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.PP
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.B disk/mkext
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.RB [ -d
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.IR name ]
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.RB [ -u ]
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.RB [ -h ]
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.RB [ -v ]
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.RB [ -x ]
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.RB [ -T ]
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.I file ...
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.SH DESCRIPTION
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.I Mkfs
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copies files from the file tree
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.I source
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(default
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.BR / )
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to a
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.B kfs
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file system (see
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.IR kfs (4)).
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The kfs service is mounted on
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.I root
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(default
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.BR /n/kfs ),
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and
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.B /adm/users
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is copied to
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.IB root /adm/users\f1.
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The
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.I proto
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files are read
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(see
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.IR proto (2)
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for their format)
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and any files specified in them that are out of date are copied to
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.BR /n/kfs .
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.PP
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.I Mkfs
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copies only those files that are out of date.
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Such a file is first copied into a temporary
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file in the appropriate destination directory
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and then moved to the destination file.
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Files in the
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.I kfs
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file system that are not specified in the
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.I proto
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file
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are not updated and not removed.
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.PP
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The options to
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.I mkfs
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are:
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.TF "s source"
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.TP
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.B a
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Instead of writing to a
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.B kfs
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file system, write an archive file to standard output, suitable for
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.IR mkext .
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All files in
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.IR proto ,
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not just those out of date, are archived.
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.TP
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.B x
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For use with
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.BR -a ,
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this option writes a list of file names, dates, and sizes to standard output
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rather than producing an archive file.
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.TP
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.BI "d " root
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Copy files into the tree rooted at
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.I root
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(default
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.BR /n/kfs ).
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This option suppresses setting the
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.B uid
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and
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.B gid
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fields when copying files.
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Use
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.B -U
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to reenable it.
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.TP
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.BI "n " name
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Use
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.RI kfs. name
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as the name of the kfs service (default
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.BR kfs ).
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.TP
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.B p
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Update the permissions of a file even if it is up to date.
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.TP
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.B r
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Copy all files.
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.TP
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.BI "s " source
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Copy from files rooted at the tree
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.IR source .
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.TP
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.BI "u " users
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Copy file
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.I users
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into
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.B /adm/users
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in the new system.
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.TP
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.B v
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Print the names of all of the files as they are copied.
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.TP
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.BI "z " n
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Copy files assuming kfs block
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.I n
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(default 1024)
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bytes long.
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If a block contains only 0-valued bytes, it is not copied.
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.PD
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.PP
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.I Mkext
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unpacks archive files made by the
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.B -a
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option of
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.IR mkfs .
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Each file on the command line is unpacked in one pass through the archive.
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If the file is a directory,
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all files and subdirectories of that directory are also unpacked.
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When a file is unpacked, the entire path is created if it
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does not exist.
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If no files are specified, the entire archive is unpacked;
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in this case, missing intermediate directories are not created.
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The options are:
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.TP
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.B d
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specifies a directory (default
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.BR / )
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to serve as the root of the unpacked file system.
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.TP
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.B u
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sets the owners of the files created to correspond to
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those in the archive and restores the modification times of the files.
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.TP
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.B T
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restores only the modification times of the files.
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.TP
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.B v
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prints the names and sizes of files as they are extracted.
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.TP
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.B h
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prints headers for the files on standard output
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instead of unpacking the files.
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.PD
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.SH EXAMPLES
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.PP
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Make an archive to establish a new file system:
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.IP
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.EX
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disk/mkfs -a -u files/adm.users -s dist proto > arch
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.EE
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.PP
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Unpack that archive onto a new file system:
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.IP
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.EX
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srv newfs
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mount -c /srv/newfs /n/newfs
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disk/mkext -u -d /n/newfs < arch
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.EE
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.SH SOURCE
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.B /sys/src/cmd/disk/mkfs.c
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.br
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.B /sys/src/cmd/disk/mkext.c
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.SH "SEE ALSO"
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.IR prep (8),
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.IR kfscmd (8),
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.IR sd (3),
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.IR tar (1)
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