178 lines
5.2 KiB
Groff
178 lines
5.2 KiB
Groff
.\" -*- nroff -*-
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.\" Copyright 2002-2003 by Szabolcs Szakacsits All Rights Reserved.
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.\"
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.TH NTFSRESIZE 8 "Oct 2003" "ntfsprogs @VERSION@"
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.SH NAME
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ntfsresize \- resize an NTFS filesystem
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.SH SYNOPSIS
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.B ntfsresize
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[\fB\-fhin\fR]
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[\fB\-s \fIsize\fR[\fBk\fR|\fBM\fR|\fBG\fR]]
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.I device
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.SH DESCRIPTION
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The
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.B ntfsresize
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program non-destructively resizes Windows NT4, 2000, XP or Windows Server 2003
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NTFS filesystems. At present it can be used to enlarge any or shrink a
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defragmented NTFS filesystem located on an unmounted
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.I device
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(usually a disk partition). The new volume will have
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.I size
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bytes.
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The
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.I size
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parameter may have one of the optional modifiers
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\fBk\fR, \fBM\fR, \fBG\fR, which means the
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.I size
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parameter is given in kilo-, mega- or gigabytes respectively.
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.B ntfsresize
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conforms to the SI, ATA, IEEE standards and the disk manufacturers
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by using k=10^3, M=10^6 and G=10^9.
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If both
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.B -i
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and
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.B -s
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are omitted then the
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NTFS filesystem will be enlarged to the device size.
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If the options
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.B -i
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and
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.B -s
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are used together then list inodes (files) using space over
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.I size\fR. At present
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.B ntfsresize
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can not relocate the files listed to the beginning
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of the partition thus it refuses to resize at
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.I size
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if there is any.
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To convert the inodes to meaningful file names, you must mount
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the partition with the
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.I show_sys_files
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mount option and run for instance
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.RS
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.sp
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.B find /mount/point \-inum <inode1> \-o \-inum <inode2> ...
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.sp
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.RE
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Before a real resize operation, always make a read-only
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test run using the
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.B -n
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option.
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.PP
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The
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.B ntfsresize
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program doesn't manipulate the size of partitions.
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To do that you have to use a disk partitioning tool, for example
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.BR fdisk (8).
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.PP
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If you wish to enlarge an NTFS filesystem then
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first you must enlarge the size of the
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underlying partition. This can be done using
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.BR fdisk (8)
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by deleting the partition and recreating it with a larger size.
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Then you may use
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.B ntfsresize
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to enlarge the size of the filesystem.
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.PP
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If you wish to shrink an NTFS partition, first use
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.B ntfsresize
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to shrink the size of the filesystem. Then you may use
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.BR fdisk (8)
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to shrink the size of the partition by deleting the
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partition and recreating it with the smaller size.
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.PP
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.B IMPORTANT!
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When recreating the partition with
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.BR fdisk (8)
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make sure you create it with the same starting
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disk cylinder and partition type
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as before.
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If you enlarge a partition make sure it will not overlap with
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an other existing partition!
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If you shrink a partition, do not make
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it smaller than the new size of the NTFS filesystem!
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Otherwise you may lose your entire filesystem.
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Also make sure you set the bootable flag for the partition if it
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existed before. Failing to do so you might not be able to boot your
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computer from the disk!
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.PP
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Note,
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.B ntfsresize
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schedules an NTFS consistency check
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when you will boot Windows. Windows may force a reboot after
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the successful consistency check.
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.SH OPTIONS
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.TP
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.B -f
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Forces ntfsresize to proceed with the filesystem resize operation, overriding
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some safety checks which
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.B ntfsresize
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normally enforces. You can use this
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parameter multiply times if you want to overcome every single safety checks.
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.TP
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.B -h
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Display help and exit.
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.TP
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.B -i
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Using this option you can calculate the smallest shrunken volume size supported.
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This option will not make any changes to the filesystem.
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You can use this option with
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.B -s\fR. See the meaning of this case above.
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.TP
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.B -n
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Use this option to make a test run before doing the real resize operation.
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Volume will be opened read-only and
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.B ntfsresize
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displays what it would do if it were to resize the filesystem.
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.TP
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.B -s \fIsize\fR[\fBk\fR|\fBM\fR|\fBG\fR]
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Resize volume to \fIsize\fR[\fBk\fR|\fBM\fR|\fBG\fR] bytes.
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The optional modifiers \fBk\fR, \fBM\fR, \fBG\fR mean the
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.I size
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parameter is given in kilo-, mega- or gigabytes respectively.
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Conforming to standards, k=10^3, M=10^6 and G=10^9. You can also use this option
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with
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.B -i\fR. See the meaning of this case above.
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.SH EXIT CODES
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The exit code is 0 on success, non-zero otherwise.
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.SH BUGS
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No bugs are known or has been reported so far in the current version.
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If you find otherwise, please report it to <linux-ntfs-dev@lists.sourceforge.net>
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(no subscription needed). It's also strongly advised you
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.B MAKE SURE YOU HAVE A BACKUP
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of your important data in case of an unexpected failure.
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.PP
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Future work is planned to include support for resizing fragmented NTFS volumes.
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Please note, Windows 2000, XP and Windows Server 2003 have built in NTFS
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defragmenter.
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.SH AUTHOR
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.B ntfsresize
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has been written by
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Szabolcs Szakacsits <szaka@sienet.hu>.
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.SH ACKNOWLEDGEMENT
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Many thanks to Anton Altaparmakov and Richard Russon (FlatCap)
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for libntfs, excellent documentation, comments, testing and fixes,
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moreover to Theodore Ts'o whose
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.BR resize2fs (8)
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man page formed the basis of this page.
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.SH AVAILABILITY
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.B ntfsresize
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is part of the linux-ntfs package and is available from
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http://linux-ntfs.sourceforge.net/ as source and pre-compiled binary.
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.B ntfsresize
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related news, example of usage and FAQ (frequently asked questions)
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is maintained at
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http://mlf.linux.rulez.org/mlf/ezaz/ntfsresize.html
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.SH SEE ALSO
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.BR fdisk (8),
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.BR cfdisk (8),
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.BR sfdisk (8),
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.BR parted (8),
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.BR mkntfs (8),
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.BR ntfsclone (8),
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.BR ntfsprogs (8)
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