.\" -*- nroff -*-
.\" Copyright 1993, 1994, 1995 by Theodore Ts'o.  All Rights Reserved.
.\" This file may be copied under the terms of the GNU Public License.
.\" 
.\" Japanese Version Copyright 1998 by MATSUMOTO Shoji. All Rights Reserved.
.\" Translated Fri Mar 13 03:10:18 JST 1998 by MATSUMOTO Shoji.
.\" Updated Sat 23 Oct 1999 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated Tue 16 Nov 1999 by NAKANO Takeo
.\" Updated & Modified Thu Aug 16 00:10:30 JST 2001
.\"         by Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated Thu 3 Oct 2002 by NAKANO Takeo
.\" Updated & Modified Sat Apr 17 13:18:42 JST 2004
.\"         by Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified Tue May  3 03:13:30 JST 2005 by Yuichi SATO
.\" 
.\"WORD:	allocate	 ()
.\"WORD:	interactive	Ū
.\"WORD:	stdout		ɸ
.\"WORD:	dump		פ
.\"WORD:	current working directory	ȥ󥰥ǥ쥯ȥ
.\"WORD:	open		ץ󤹤
.\"WORD:	close		
.\"WORD:	owner		ͭ(owner)
.\"WORD:	group		ͭ롼(group)
.\"WORD:	permission	ѡߥå(permission)
.\"WORD:	free block	֥å(free block)
.\"WORD:	directory entry	ǥ쥯ȥꥨȥ
.\"WORD:	link		
.\"WORD:	reference counts	ȿ(reference counts)
.\"WORD:	structure	¤
.\"WORD:	pathname	ѥ̾
.\"WORD:	SPECIFING FILES	ե
.\"
.TH DEBUGFS 8 "June 2005" "E2fsprogs version 1.38"
.SH ̾
debugfs \- ext2/ext3 ե륷ƥǥХå
.SH 
.B debugfs
[
.B \-Vwci
]
[
.B \-b
blocksize
]
[
.B \-s
superblock
]
[
.B \-f 
cmd_file
]
[
.B \-R
request
]
[
.B \-d
data_source_device
]
[
device
]
.SH 
.B debugfs
Ūʥե륷ƥΥǥХåǤ롣
ext2 ե륷ƥξ֤ĴѹѤǤ롣
.I device
ϡext2 ե륷ƥޤǥХб
ڥեǤ롣(: /dev/hdXX)
.SH ץ
.TP
.I \-w
ե륷ƥ read/write ⡼ɤǥץ󤹤롣
Υץꤷʤϡ
ե륷ƥ read-only ⡼ɤǥץ󤵤롣
.TP
.I \-c
ե륷ƥ catastrophic
(»ä) ⡼ɤǥץ󤹤롣
Υ⡼ɤǤ inode ȥ롼ץӥåȤǽɤ߹ޤʤ
Ͻ٤»ե륷ƥФƤͭʤȤ뤬
Τ catastrophic ⡼ɤǤϥե륷ƥ
read-only ǤץǤʤ
.TP
.I \-i
.I device

.B e2image
ץˤäƺ줿 ext2 ᡼եǤ뤳Ȥꤹ롣
ext2 ᡼եϡѡ֥å
֥å롼ץǥץ֥åӥåȥޥåס
inode ӥåȥޥåסinode ơ֥뤷ʤΤǡ
.B debugfs
¿Υޥɤǽʤ
.B ٹ:
ΥåϹԤʤ
ޤ
.I \-d
ץˤä
.I data_source_device
ꤻˡ
.IR ls ", " dump
ʤɤΥޥɤ¹Ԥˤ
.B debugfs 
Ѥ˼Ԥ뤫⤷ʤ
.B debugfs 
ϥǥХåѤΥġʤΤǡ줿ʬΤߤǤȤϸ¤ʤ!
.TP
.I -d data_source_device
.I \-i
ץȶ˻Ѥ졢
ɤ߹ߥ֥å ext2 ᡼ե˸Ĥʤˤϡ
ꤵ줿
.I data_source_device
Ѥ롣
ΥǥХˤϥǡǥ쥯ȥꡦ (indirect) ֥åޤޤ롣
.TP
.I -b blocksize
̾Τ褦֥å򸡽ФưԤ鷺
ꤷ֥å򤽤Υե륷ƥѤ롣
.TP
.I -s superblock
ե륷ƥΥѡ֥å򡢥ǥեȤ 1 ǤϤʤ
ꤷ֥åֹ椫ɤޤ롣
.I -s
ץꤷ硢
.I -b
ץꤷʤФʤʤ
.TP
.I -f cmd_file
.B debugfs
ˡ
.I cmd_file
饳ޥɤɤ߹ޤ¹Ԥ롣
ޥɤμ¹Ԥλȡ
.B debugfs
Ͻλ롣
.TP 
.I -R request
.I request
ȤҤȤĤΥޥɤ¹Ԥλ롣
.TP
.I -V
.B debugfs
ΥСɽƽλ롣
.SH ե
.B debugfs
Υޥɤ¿ϡ
debugfs ߥץ󤷤Ƥե륷ƥˤ 
inode (ѥ̾ǤϤʤ) 򼨤
.I filespec
Ȥ롣
.I filespec
ˤ 2 ɽˡ롣ҤȤĤϡinode ֹ <> ǰϤˡǤ
(:
.IR <2> )
⤦ҤȤĤϥѥ̾ǻꤹˡǤ롣
ѥ̾/ (å)פǤϤޤ硢
.B debugfs
ߥץ󤷤Ƥե륷ƥΥ롼ȤХѥɽ
/פǻϤޤʤ硢ȥ󥰥ǥ쥯ȥ꤫Хѥɽ
ȥ󥰥ǥ쥯ȥ
.B debugfs

.I cd
ޥɤˤäѹǤ롣
.\" 
.\"
.\"
.SH ޥ
.B debugfs
ݡȤ륳ޥɤΰʲ˼
.TP
.I bmap filespec logical_block
.I filespec
ǻꤷ inode ˤ֥åֹ
.I logical_block
бʪ֥åֹɽ롣
.TP
.I cat filespec
.I filespec
ǻꤷ inode ƤɸϤإפ롣
.TP
.I cd filespec
ȥ󥰥ǥ쥯ȥ
.I filespec
ǻꤷǥ쥯ȥѹ롣
.TP
.I chroot filespec
롼ȥǥ쥯ȥ
.I filespec
ǻꤷǥ쥯ȥѹ롣
.TP
.I close
ߥץ󤷤Ƥե륷ƥ򥯥롣
.TP
.I clri file
.I file
ǻꤷ inode Ƥ򥯥ꥢ롣
.TP
.I dump [-p] filspec out_file
.I filespec
ǻꤷ inode Ƥ
.I out_file
ǻꤷե˥פ롣
.I -p
ץͿȡ
.I out_file
νͭ (owner)ͭ롼 (group)ѡߥå (permission) 
.I filespec
Ʊˤ롣
.TP
.I expand_dir filespec
.I filespec
ǻꤷǥ쥯ȥŸ롣
.TP
.I feature [fs_feature] [-fs_feature] ...
ѡ֥å͡ʥե륷ƥ°򥻥å/ꥢ롣
׵Τä°򥻥å/ꥢϡ
ե륷ƥ°θ߾֤ΰɽ롣
.TP
.I find_free_block [count [goal]]
.I goal
Ϥޤǽ
.I count
ʬζ֥åõζ֥å򥢥 (allocate) 롣
.TP
.I find_free_inode [dir [mode]]
 inode õ inode 򥢥Ȥ롣
.I dir
ꤹȡ
Ϥ inode ֤٤ǥ쥯ȥ inode Ȳᤵ롣

.I mode
ꤹȡ
Ͽ inode ΥѡߥåȲᤵ롣
.RI ( mode
˥ǥ쥯ȥǤ뤳ȤꤹӥåȤΩäƤ硢
ȥ롼εưϰۤʤΤˤʤ롣)
.TP
.I freeb block [count]
֥åֹ
.I block
򥢥ȤƤʤΤȤƥޡ롣
άǽʰ
.I count
ꤹȡ֥åֹ
.I block
Ϥޤ
.I count
ʬΥ֥å򥢥ȤƤʤΤȤƥޡ롣
.TP
.I freei filespec
.I filespec
ǻꤷ inode 롣
.TP
.I help
.BR debugfs (8)
ѤǤ륳ޥɤΥꥹȤɽ롣
.TP
.I icheck block ...
ޥɥ饤Ϳ֥å (ʣ) 
ѤƤ inode ΥꥹȤɽ롣
.TP
.I imap filespec
.I filespec
ǻꤵ줿 inode  (inode ơ֥ˤ)
inode ǡ¤ξɽ롣
.TP
.I init_filesys device blocksize
.I device 
ˡǥХ
.I blocksize 
 ext2 ե륷ƥ롣
Υޥɤϡ٤ƤΥǡ¤˽櫓ǤϤʤ
򤷤
.BR mke2fs (8)
ץѤ뤳ȡ
Υޥɤϡñ˥ѡ֥åȥ֥åǥץꤹ
٥饤֥ƤӽФǤ롣
.TP
.I kill_file filespec
.I filespec
ǻꤷ inode ȡ
 inode ѤƤ֥å򥢥Ȥ鳰 (deallocate)
ʤ inode бǥ쥯ȥꥨȥϺʤȤա
ե unlink 
.I rm
ޥɤ򻲾ȤΤȡ
.TP
.I lcd directory
.B debugfs
ץΥȥ󥰥ǥ쥯ȥ
ͥƥ֥ե륷ƥ (: оݤΤΤǤϤʤ
debugfs ƤӽФ졢ƯƤե륷ƥ) 
.I directory
ѹ롣
.TP
.I ln filespec dest_file
.I filespec
ؤ
.I dest_file
롣
κ inode λȿ (reference counts) ѹʤȤա
.TP
.I logdump [-acs] [-b<block>] [-i<filespec>] [-f<journal_file>] [output_file]
ext3 㡼ʥƤפ롣
ǥեȤǤϥ㡼ʥ inode ϥѡ֥åǻꤵ롣

.I \-i
ץǾ񤭤뤳ȤǽǤ롣
.I \-i
ץϻѤ른㡼ʥꤹ inode ҤȤ
㡼ʥǡ񤫤줿եϡ
.I \-f
ץȤäƻꤹ뤳ȤǤ롣

.I \-s
ץϥѡ֥åˤХåå׾Ȥäơ
㡼ʥ򥢥Ȥ롣
.IP
.I \-a
ץꤹȡ
.I logdump
ץƤΥǥץ֥åƤɽ롣
.I \-b
ץꤹȡ
.I logdump
ץϻꤵ줿֥å򻲾ȤƤΥ㡼ʥ쥳ɤɽ롣
.I \-c
ץꤹȡ
.I \-a

.I \-b
ץ򤵤줿ƤΥǡ֥åƤɽ롣
.TP
.I ls [-l] [-d] filespec
.I filespec
ǻꤷǥ쥯ȥˤեꥹɽ롣
.I \-l
ե饰ꤹȡܺ٤ʽ񼰤ǥեꥹɽ롣
.I \-d
ե饰ꤹȡ
Υǥ쥯ȥˤȥ (deleted entry)
ꥹɽ롣
.TP
.I modify_inode filespec
.I filespec
ǻꤷ inode ˤ inode ¤ΤƤѹ롣
.TP
.I mkdir filespec
ǥ쥯ȥ롣
.TP
.I mknod filespec [p|[[c|b] major minor]]
ڥǥХե
(̾դѥס饯ǥХ֥åǥХ)
롣
饯ǥХӥ֥åǥХϡ
ǥХֹȤ
.I major

.I minor
ꤷʤФʤʤ
.TP
.I ncheck inode_num ...
ꤷ inode ֹ椽줾бѥ̾ΥꥹȤɽ롣
.TP
.I open [-w] [-f] [-i] [-c] [-b blocksize] [-s superblock] device
ԽоݤȤե륷ƥ򥪡ץ󤹤롣
.I \-w
ե饰Ĥȥե륷ƥ񤭹Ѥ˥ץ󤹤롣
.I \-f
ե饰Ĥȡ̾ǤϥץǤʤ褦ʡ
ʥե륷ƥߴʥե륷ƥǤ
Ū˥ץ󤹤롣
.IR -c ", " -b ", " -i ", " -s
ץꤷưϡ
.B debugfs
ȤˤΥץꤷƱǤ롣
.TP
.I pwd
ȥ󥰥ǥ쥯ȥɽ롣
.TP
.I quit
.B debugfs
λ롣
.TP
.I rdump directory destination
.I directory
 (̾Υե롦ܥå󥯡
¾Υǥ쥯ȥޤ) Υǥ쥯ȥƤƤ
.I destination
Ȥ̾Υǥ쥯ȥ˺ƵŪ˥פ롣
.I destination
ϥͥƥ֥ե륷ƥ¸ߤǥ쥯ȥǤʤФʤʤ
.TP
.I rm pathname
.I pathname
ǻꤷѥ̾ unlink 롣
.I pathname
μ inode ⻲Ȥʤʤäˤϡ
եΥȤ򳰤
Υޥɤ unlink() ƥॳΤ褦ư롣
.TP
.I rmdir filespec
.I filespec
ǻꤷǥ쥯ȥõ롣
.TP
.I setb block [count]
֥åֹ
.I block
򥢥ȤƤΤȤƥޡ롣
άǽʰ
.I count
ꤹȡ֥åֹ
.I block
Ϥޤ
.I count
ʬΥ֥å򥢥ȤƤΤȤƥޡ롣
.TP
.I seti filespec
inode ӥåȥޥåפˡ
.I filespec
ǻꤷ inode Ǥȥޡ롣
.TP
.I set_inode_field filespec field value
.I filespec
ǻꤵ줿 inode ѹinode ե
.I field

.I value
Ĥ褦ˤ롣
Υޥɤ꤬ǽʡ inode եɤΥꥹȤϡ
.B set_inode_field -l
ޥɤˤäɽǤ롣
.TP
.I set_super_value field value
ѡ֥åե
.I field

.I value
ˤ롣Υޥɤ꤬ǽʡ
ѡ֥åեɤΥꥹȤϡ
.B set_super_value -l
ޥɤˤäɽǤ롣
.TP
.I show_super_stats [-h]
ѡ֥åȥ֥å롼ץǥץƤɽ롣
.I \-h
ե饰Ϳȡ
ѡ֥åƤɽ롣
.TP
.I stat filespec
.I filespec
ǻꤷ inode  inode ¤ΤƤɽ롣
.TP
.I testb block [count]
֥åֹ
.I block
֥åӥåȥޥåפˤƥȤˤʤäƤ뤫ɤĴ٤롣
άǽʰ
.I count
ꤹȡ֥åֹ
.I block
Ϥޤ
.I count
ʬΥ֥å򸡺롣
.TP
.I testi filespec
.I filespec
ǻꤷ inode 
inode ӥåȥޥåפˤƥȤˤʤäƤ뤫ɤĴ٤롣
.TP
.I unlink pathname
.I pathname
ǻꤷ inode ؤ󥯤롣
ʤκݡinode ȿѹʤȤա
.TP
.I write source_file out_file
ե륷ƥ
.I out_file
ǻꤷե
.I source_file
Ƥ򤽤Υե˥ԡ롣
.SH Ķѿ
.TP
.B DEBUGFS_PAGER, PAGER
.BR debugfs (8)
ϤĤΥޥɤνϤ˥ڡץ˥ѥפ롣
Τ褦ʥޥɤȤƤϡ
.IR show_super_stats ,
.IR list_directory ,
.IR show_inode_info ,
.IR list_deleted_inodes ,
.I htree_dump
롣
ΥڡĶѿ
.B DEBUGFS_PAGER
Ū˻ꤹ뤳ȤǤ롣
δĶѿꤵƤʤϡĶѿ
.B PAGER
ǻꤵ롣
.IP
1 ĤΥڡ㤬˻ȤΤǡ
.BR less (1)
ڡäŬʤդ뤳ȡ
.BR less (1)
ϥޥɤɽɽ˥꡼򥯥ꥢꡢ
ڡ㤬λȤ˥꡼ؤνϤ򥯥ꥢƤޤǤ롣
¿Υ桼
.BR less (1)
ڡ򤤤Ū˻ȤΤ򹥤Ǥ롣
줬Ķѿ
.B DEBUGFS_PAGER 
ǡŪʴĶѿ
.B PAGER
񤭤ǤͳǤ롣
.SH 
.B debugfs
 Theodore Ts'o <tytso@mit.edu> ˤäƺ줿
.SH Ϣ
.BR dumpe2fs (8),
.BR e2fsck (8),
.BR mke2fs (8)