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[linuxjm/jm.git] / manual / e2fsprogs / draft / man8 / resize2fs.8

.\" -*- nroff -*-
.\" Copyright 1997 by Theodore Ts'o.  All Rights Reserved.
.\" 
.\" Japanese Version Copyright (c) 2001-2007 Yuichi SATO
.\"         all rights reserved.
.\" Translated Sun Sep  2 23:47:38 JST 2001
.\"         by Yuichi SATO <ysato@h4.dion.ne.jp>, v1.24
.\" Updated & Modified Sat Mar  6 14:01:56 JST 2004
.\"         by Yuichi SATO <ysato444@yahoo.co.jp>, v1.34
.\" Updated & Modified Mon Feb 19 03:21:10 JST 2007 by Yuichi SATO, v1.39
.\" 
.\" .TH RESIZE2FS 8 "May 2006" "E2fsprogs version 1.39"
.TH RESIZE2FS 8 "May 2006" "E2fsprogs version 1.39"
.\"O .SH NAME
.SH ̾Á°
.\"O resize2fs \- ext2/ext3 file system resizer
resize2fs \- ext2/ext3 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤òÊѹ¹¤¹¤ë
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.B resize2fs
[
.B \-d 
.I debug-flags
]
[
.B \-S
.I RAID-stride
]
[
.B \-f
]
[
.B \-F
]
[
.B \-p
]
.I device
[
.I size
]
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O The 
.\"O .B resize2fs 
.\"O program will resize ext2 or ext3 file systems.  It can be used to enlarge or
.\"O shrink an unmounted file system located on 
.\"O .IR device .
.B resize2fs 
¤Ï ext2 ¤Þ¤¿¤Ï ext3 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤òÊѹ¹¤¹¤ë¡£
¤³¤Î¥×¥í¥°¥é¥à¤Ï
.I device 
¾å¤Î¥¢¥ó¥Þ¥¦¥ó¥È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò³ÈÂç¤Þ¤¿¤Ï½Ì¾®¤¹¤ë¡£
.\"O If the filesystem is mounted, it can be used to expand the size of the
.\"O mounted filesystem, assuming the kernel supports on-line resizing.  (As
.\"O of this writing, the Linux 2.6 kernel supports on-line resize for
.\"O filesystems mounted using ext3 only.).
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢
¥«¡¼¥Í¥ë¤¬¥ª¥ó¥é¥¤¥ó¤Ç¤Î¥µ¥¤¥ºÊѹ¹¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¤È²¾Äꤷ¤Æ¡¢
¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤ò³ÈÂ礹¤ë
(¤³¤Î man ¥Ú¡¼¥¸¤ò½ñ¤¤¤Æ¤¤¤ë»þÅÀ¤Ç¤Ï¡¢Linux 2.6 ¥«¡¼¥Í¥ë¤Ë¤ª¤¤¤Æ¡¢
¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥ª¥ó¥é¥¤¥ó¤Ç¤Î¥µ¥¤¥ºÊѹ¹¤¬
¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤Î¤Ï¡¢ext3 ¤Î¤ß¤Ç¤¢¤ë)¡£
.PP
.\"O The 
.\"O .I size
.\"O parameter specifies the requested new size of the filesystem.
.I size
¥Ñ¥é¥á¡¼¥¿¤Ë¤Ï´õ˾¤¹¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¿·¤·¤¤¥µ¥¤¥º¤ò»ØÄꤹ¤ë¡£
.\"O If no units are specified, the units of the
.\"O .I size
.\"O parameter shall be the filesystem blocksize of the filesystem.
ñ°Ì¤¬»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢
.I size
¥Ñ¥é¥á¡¼¥¿¤Îñ°Ì¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤È¤Ê¤ë¡£
.\"O Optionally, the 
.\"O .I size
.\"O parameter may be suffixed by one of the following the units 
.\"O designators: 's', 'K', 'M', or 'G',
.\"O for 512 byte sectors, kilobytes, megabytes, or gigabytes, respectively.
.I size
¥Ñ¥é¥á¡¼¥¿¤Ë¤Ï¥ª¥×¥·¥ç¥ó¤È¤·¤Æ
°Ê²¼¤Îñ°Ì»ØÄêʸ»ú¤ò¸å¤í¤ËÉÕ¤±¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
\&'s', 'K', 'M', 'G' ¤Ï¡¢¤½¤ì¤¾¤ì 512 ¥Ð¥¤¥È¥»¥¯¥¿¡¢
¥­¥í¥Ð¥¤¥È¡¢¥á¥¬¥Ð¥¤¥È¡¢¥®¥¬¥Ð¥¤¥È¤òɽ¤¹¡£
.\"O The 
.\"O .I size
.\"O of the filesystem may never be larger than the size of the partition.
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î
.I size
¤Ï¡¢¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤è¤êÂ礭¤¯¤¹¤ë¤³¤È¤Ï¤Ç¤­¤Ê¤¤¡£
.\"O If 
.\"O .I size
.\"O parameter is not specified, it will default to the size of the partition.
.I size
¥Ñ¥é¥á¡¼¥¿¤¬»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢
¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤ò¥Ç¥Õ¥©¥ë¥È¤È¤¹¤ë¡£
.PP
.\"O The
.\"O .B resize2fs
.\"O program does not manipulate the size of partitions.  If you wish to enlarge
.\"O a filesystem, you must first make sure you can expand the size of the
.\"O underlying partition first.  
.B resize2fs
¥×¥í¥°¥é¥à¤Ï¡¢¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤ÏÁàºî¤·¤Ê¤¤¡£
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤òÂ礭¤¯¤·¤è¤¦¤È¤¹¤ë¾ì¹ç¤Ï¡¢
¤½¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¤¢¤ë¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤òÂ礭¤¯¤Ç¤­¤ë¤«¤ò
ºÇ½é¤Ë³Îǧ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
.\"O This can be done using 
.\"O .BR fdisk (8)
.\"O by deleting the partition and recreating it with a larger size or using
.\"O .BR lvextend (8),
.\"O if you're using the logical volume manager
.\"O .BR lvm (8).
¤³¤ì¤Ï¡¢
.BR fdisk (8)
¤ò»È¤Ã¤Æ¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤òºï½ü¤·¤¿¸å¤Ë
¤è¤êÂ礭¤Ê¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤òºÆºîÀ®¤¹¤ë¤³¤È¤Ç³Îǧ¤Ç¤­¤ë¤·¡¢
ÏÀÍý¥Ü¥ê¥å¡¼¥à¥Þ¥Í¡¼¥¸¥ã
.BR lvm (8)
¤ò»È¤Ã¤Æ¤¤¤ë¾ì¹ç¤Ï¡¢
.BR lvextend (8)
¤ò»È¤Ã¤Æ³Îǧ¤Ç¤­¤ë¡£
.\"O When 
.\"O recreating the partition, make sure you create it with the same starting
.\"O disk cylinder as before!  Otherwise, the resize operation will 
.\"O certainly not work, and you may lose your entire filesystem.  
¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤òºÆºîÀ®¤¹¤ë¾ì¹ç¡¢
ɬ¤º°ÊÁ°¤ÈƱ¤¸³«»Ï¥Ç¥£¥¹¥¯¥·¥ê¥ó¥À¤ÇºîÀ®¤¹¤ë¤³¤È!
¤½¤¦¤·¤Ê¤¤¤È¡¢¥µ¥¤¥ºÊѹ¹¤ÎÁàºî¤ÏÀäÂФˤ¦¤Þ¤¯¹Ô¤«¤º¡¢
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àÁ´ÂΤò¼º¤Ã¤Æ¤·¤Þ¤¦¡£
.\"O After running
.\"O .BR fdisk (8),
.\"O run resize2fs to resize the ext2 filesystem 
.\"O to use all of the space in the newly enlarged partition.
.BR fdisk (8)
¤ò¼Â¹Ô¤·¤¿¸å¡¢resize2fs ¤ò¼Â¹Ô¤¹¤ë¤³¤È¡£
¤³¤ì¤Ë¤è¤ê¡¢ext2 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤òÊѹ¹¤·¡¢
³ÈÂ礷¤¿¿·¤·¤¤¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ÎÁ´¤Æ¤ÎÎΰè¤ò»È¤¦¤³¤È¤¬¤Ç¤­¤ë¡£
.PP
.\"O If you wish to shrink an ext2 partition, first use 
.\"O .B resize2fs
.\"O to shrink the size of filesystem.  Then you may use 
.\"O .BR fdisk (8)
.\"O to shrink the size of the partition.  When shrinking the size of 
.\"O the partition, make sure you do not make it smaller than the new size 
.\"O of the ext2 filesystem!
ext2 ¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ò¾®¤µ¤¯¤·¤è¤¦¤È¤¹¤ë¾ì¹ç¤Ë¤Ï¡¢
ºÇ½é¤Ë
.B resize2fs
¤ò»È¤Ã¤Æ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤ò¾®¤µ¤¯¤¹¤ë¡£
³¤¤¤Æ
.BR fdisk (8)
¤ò»È¤¨¤Ð¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤ò¾®¤µ¤¯¤Ç¤­¤ë¡£
¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Î¥µ¥¤¥º¤ò¾®¤µ¤¯¤¹¤ë¤È¤­¤Ï¡¢
¿·¤·¤¤ ext2 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥º¤è¤ê¾®¤µ¤¯¤·¤Ê¤¤¤³¤È!
.\"O .SH OPTIONS
.SH ¥ª¥×¥·¥ç¥ó
.TP
.B \-d \fIdebug-flags
.\"O Turns on various resize2fs debugging features, if they have been compiled 
.\"O into the binary.
resize2fs ¤Î¤¤¤í¤¤¤í¤Ê¥Ç¥Ð¥Ã¥°Â°À­¤¬¥×¥í¥°¥é¥à¤ËÁȤ߹þ¤Þ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢
¤½¤ì¤é¤Î°À­¤òÀßÄꤹ¤ë¡£
.\"O .I debug-flags
.\"O should be computed by adding the numbers of the desired features 
.\"O from the following list:
.I debug-flags
¤Ï°Ê²¼¤Î¥ê¥¹¥È¤Î¤¦¤Á´õ˾¤¹¤ë°À­Ãͤò­¤·¤Æ·×»»¤¹¤ë¡£
.br
.\"O \  1\      \-\ Print out all disk I/O 
\       1\      \-\ Á´¤Æ¤Î¥Ç¥£¥¹¥¯ I/O ¤òɽ¼¨¤¹¤ë¡£
.br
.\"O \  2\      \-\ Debug block relocations
\       2\      \-\ ¥Ö¥í¥Ã¥¯¤ÎºÆ³ä¤êÅö¤Æ¤ò¥Ç¥Ð¥Ã¥°¤¹¤ë¡£
.br
.\"O \  8\      \-\ Debug inode relocations
\       8\      \-\ inode ¤ÎºÆ³ä¤êÅö¤Æ¤ò¥Ç¥Ð¥Ã¥°¤¹¤ë¡£
.br
.\"O \  16\     \-\ Debug moving the inode table
\       16\     \-\ inode ¥Æ¡¼¥Ö¥ë¤Î°ÜÆ°¤ò¥Ç¥Ð¥Ã¥°¤¹¤ë¡£
.TP
.B \-S \fIRAID-stride
.\"O The 
.\"O .B resize2fs
.\"O program will heuristically determine the RAID stride that was specified 
.\"O when the filesystem was created.  This option allows the user to 
.\"O explicitly specify a RAID stride setting to be used by resize2fs instead.
.B resize2fs
¥×¥í¥°¥é¥à¤Ï¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬ºîÀ®¤µ¤ì¤¿¤È¤­¤Ë»ØÄꤵ¤ì¤¿
RAID stride ¤ò¥Ò¥å¡¼¥ê¥¹¥Æ¥£¥Ã¥¯ (heuristic) ¤Ë´ð¤Å¤¤¤Æ·èÄꤹ¤ë¡£
°ìÊý¡¢¤³¤Î¥ª¥×¥·¥ç¥ó¤Ë¤è¤ê¡¢¥æ¡¼¥¶¤Ï resize2fs ¤Ç»ÈÍѤµ¤ì¤ë
RAID stride ÀßÄê¤òÌÀ¼¨Åª¤Ë»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
.TP
.B \-p
.\"O Prints out a percentage completion bars for each 
.\"O .B resize2fs
.\"O operation, so that the user can keep track of what
.\"O the program is doing.
.B resize2fs
¤Î³ÆÁàºî¤Ë¤Ä¤¤¤Æ¡¢ºî¶È´°Î»Ê¬¤Î¥Ñ¡¼¥»¥ó¥È¤òɽ¤¹¥Ð¡¼¤òɽ¼¨¤¹¤ë¡£
¤³¤ì¤Ë¤è¤ê¥æ¡¼¥¶¡¼¤Ï¥×¥í¥°¥é¥à¤ÎÆ°ºî¤òÄɤ¦¤³¤È¤¬¤Ç¤­¤ë¡£
.TP 
.B \-f
.\"O Forces resize2fs to proceed with the filesystem resize operation, overriding 
.\"O some safety checks which resize2fs normally enforces.
resize2fs ¤¬Ä̾ï¹Ô¤¦°ÂÁ´À­¥Á¥§¥Ã¥¯¤ò̵»ë¤µ¤»¤Æ¡¢
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥µ¥¤¥ºÊѹ¹Áàºî¤ò¶¯À©Åª¤Ë¿Ê¤á¤ë¡£
.TP
.B \-F
.\"O Flush the filesystem device's buffer caches before beginning.  Only
.\"O really useful for doing 
.\"O .B resize2fs
.\"O time trials.
¥µ¥¤¥ºÊѹ¹¤ò»Ï¤á¤ëÁ°¤Ë¡¢
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ç¥Ð¥¤¥¹¤Î¥Ð¥Ã¥Õ¥¡¥­¥ã¥Ã¥·¥å¤ò¾Ãµî¤¹¤ë¡£
.B resize2fs
¤Î¥¿¥¤¥à¥È¥é¥¤¥¢¥ë¤ò¤¹¤ë¾ì¹ç¤Ë¤Î¤ßÌòΩ¤Ä¡£
.\"O .SH AUTHOR
.SH Ãø¼Ô
.\"O .B resize2fs
.\"O was written by Theodore Ts'o <tytso@mit.edu>.
.B resize2fs
¤Ï Theodore Ts'o <tytso@mit.edu> ¤¬ºîÀ®¤·¤¿¡£
.\"O .SH COPYRIGHT
.SH Ãøºî¸¢
Resize2fs is Copyright 1998 by Theodore Ts'o and PowerQuest, Inc.  All
rights reserved.  
.\"O As of April, 2000
.\"O .B Resize2fs
.\"O may be redistributed under the terms of the GPL.
2000 ǯ 4 ·î¤Î»þÅÀ¤Ç¤Ï¡¢
.B resize2fs
¤Ï GPL ¤Î²¼¤ÇºÆÇÛÉÛ²Äǽ¤Ç¤¢¤ë¡£
.\"O .SH SEE ALSO
.SH ´ØÏ¢¹àÌÜ
.BR fdisk (8),
.BR e2fsck (8),
.BR mke2fs (8),
.BR lvm (8), 
.BR lvextend (8)