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±Û¾´ÀÌ: linu e2fsck¸í·É¾î Á¶È¸¼ö: 4150


e2fsck¸í·É¾î´Â fsck¸í·É¾îÀÇ È®Àå¸í·É¾î¶ó°í ÇÒ¼ö ÀÖÀ¸¸ç, ¸®´ª½º¿¡¼­ »ç¿ë°¡´ÉÇÑ °ÅÀÇ ¸ðµç Á¾·ùÀÇ ÆÄÀϽýºÅÛ("ext2", "ext3", "ext4" µî)ÀÇ Á¡°Ë°ú º¹±¸¸¦ ÇÒ¼ö ÀÖ´Â ¸í·É¾îÀÌ´Ù.

ÆÄÀϽýºÅÛ ¿À·ù·Î ÀÎÇÏ¿© ½Ã½ºÅÛ ºÎÆÃÀÌ Á¤»óÀûÀ¸·Î µÇÁö ¾ÊÀ» °æ¿ì¿¡ ÀÌ ¸í·É¾î¸¦ ÀÌ¿ëÇÏ¿© ÆÄÀϽýºÅÛÀÇ ¿À·ù¸¦ ¼öÁ¤ÇÏ°í Á¤»óÀûÀ¸·Î ºÎÆÃÇÏ´Â °æ¿ìµµ ÀÖ´Ù.

-. e2fsckÁ¾·áÄÚµå

0 = ¿¡·¯¾øÀÌ Á¤»óÀûÀÎ Á¾·á.

1 = ÆÄÀϽýºÅÛÀ» º¹±¸ÇÏ¿´À½.

2 = ÆÄÀϽýºÅÛÀÌ º¹±¸µÇ¾úÀ¸¸ç ½Ã½ºÅÛÀÌ ÀçºÎÆõǾî¾ßÇÔ.

4 = ÀÛ¾÷´ë»ó ÆÄÀϽýºÅÛ¿¡ ¹®Á¦°¡ ÀÖÀ¸³ª º¹±¸ÇÏÁö ¾Ê°í ±×´ë·Î µÎ¾úÀ½

8 = ½ÇÇà¿¡·¯

16 = »ç¿ë¹ý(Usage)¶Ç´Â ¹®¹ý(Syntax)¿¡·¯¸¦ ÀǹÌ

32 = e2fsckÀÛ¾÷ÀÌ »ç¿ëÀÚ¿¡ ÀÇÇؼ­ Ãë¼Ò(Cancle)µÇ¾úÀ½

128 = °øÀ¯ ¶óÀ̺귯¸®(Shared library)¿¡·¯



-. e2fsck¿¡¼­ Á¡°ËÇÏ´Â ½ÇÁ¦Ç׸ñµé

1. inodesÁ¡°Ë

2. blocksÁ¡°Ë

3. sizesÁ¡°Ë

4. µð·ºÅ丮±¸Á¶ Á¡°Ë

5. µð·ºÅ丮 ¿¬°á¼ºÁ¡°Ë

6. ÆÄÀϸµÅ© Á¤º¸ Á¡°Ë

7. ÀüüÆÄÀÏ °³¼ö Á¡°Ë

8. Àüüºí·Ï¼öÁß »ç¿ëÁßÀÎ ºí·Ï Á¡°Ë µî


[root@os1 ~]# e2fsck -f -j ext3 /dev/sdb2

e2fsck 1.39 (29-May-2006)

Pass 1: Checking inodes, blocks, and sizes

Pass 2: Checking directory structure

Pass 3: Checking directory connectivity

Pass 4: Checking reference counts

Pass 5: Checking group summary information

/dev/sdb2: 11/50304 files (9.1% non-contiguous), 1664/100406 blocks


-. ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ ÆÄÀϽýºÅÛ º¹±¸Çϱâ(-b)

¸¸¾à e2fsck·Î ÆÄÀϽýºÅÛÀÌ ÀÚµ¿º¹±¸ µÇÁö ¾ÊÀ» °æ¿ì¿¡´Â ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© º¹±¸ÇØÁÖ¾î¾ß ÇÑ´Ù.

ÀÌ ¹æ¹ýÀ» ÀÌ¿ëÇÏ¸é ¹°¸®ÀûÀ¸·Î ¹®Á¦ÀÖ´Â ºÎºÐ ÀÌ¿Ü¿¡´Â °ÅÀÇ ´ëºÎºÐÀÇ °æ¿ì µ¥ÀÌÅͺ¹±¸¸¦ ÇÒ¼ö ÀÖ´Ù.

´Ü, ¸®´ª½ºÀÇ ÆÄÀϽýºÅÛ±¸Á¶¿Í ¼öÆÛºí·Î±×ÀÌ Á¤È®ÇÑ °³³ä, ±×¸®°í ¹é¾÷¼öÆÛºÒ·ÏÀÇ À§Ä¡¸¦ ¾Ë¾Æ¾ß¸¸ °¡´ÉÇÑ ¹æ¹ýÀÌ´Ù.



-b¿É¼Ç¿¡ "¹é¾÷¼öÆÛºí·Ï¹øÈ£"¸¦ ÇÔ²² ÁÖ¸é µÈ´Ù.

-b "¹é¾÷¼öÆÛºí·Ï¹øÈ£"

¸®´ª½ºÆÄÀϽýºÅÛÀº ºí·Ï±×·ì(Block group)À̶ó´Â °ÍÀ¸·Î ±âº»±¸Á¶¸¦ ÀÌ·ç°í ÀÖ´Ù.

¾Æ·¡´Â /dev/sdbÆÄÀϽýºÅÛÀ» ´ë»óÀ¸·Î ¼öÆÛºí·Ï°ú ¹é¾÷¼öÆÛºí·ÏÀÇ À§Ä¡¸¦ È®ÀÎÇÑ°ÍÀÌ´Ù.

[root@os1 ~]# dumpe2fs /dev/sdb | grep superblock

dumpe2fs 1.39 (29-May-2006)

Primary superblock at 0, Group descriptors at 1-1

Backup superblock at 32768, Group descriptors at 32769-32769

Backup superblock at 98304, Group descriptors at 98305-98305

Backup superblock at 163840, Group descriptors at 163841-163841

Backup superblock at 229376, Group descriptors at 229377-229377

¸ÞÀμöÆÛºí·Ï = 0

ù¹ø° ¹é¾÷¼öÆÛºí·Ï = 32768

µÎ¹ø° ¹é¾÷¼öÆÛºí·Ï = 98304

¼¼¹ø° ¹é¾÷¼öÆÛºí·Ï = 163840

³×¹ø° ¹é¾÷¼öÆÛºí·Ï = 229376



¸ÞÀμöÆÛºí·ÏÀº 0¹øºí·Ï¿¡ À§Ä¡Çϸç ÆÄÀϽýºÅÛÀÇ ¸Ç ¾ÕºÎºÐ¿¡ À§Ä¡ÇÑ´Ù. ¸ÞÀμöÆÛºí·Ï¿¡´Â ÆÄÀϽýºÅÛÀÇ ¸Å¿ì Áß¿äÇÑ Á¤º¸µéÀÌ ÀúÀåµÇ¾î ÀÖ¾î À̺κÐÀÌ ¼Õ»óµÇ¸é ÆÄÀϽýºÅÛÀÌ Á¤»ó ÀÛµ¿µÇÁö ¾Ê´Â´Ù.

µû¶ó¼­, ¸ÞÀμöÆÛºí·ÏÀÌ ¼Õ»óµÇ¾úÀ» °æ¿ì¿¡´Â ±× ÆÄÀϽýºÅÛ¿¡ Á¸ÀçÇÏ´Â ¸ðµç ÆÄÀϵ鿡 ´ëÇÑ Àбâ/¾²±â°¡ ºÒ°¡´ÉÇØÁø´Ù.

¹é¾÷¼öÆÛºí·Ï¿¡´Â ¸ÞÀμöÆÛºí·ÏÀÇ ¹é¾÷º»ÀÌ Á¸ÀçÇϱ⠶§¹®¿¡ ¸ÞÀμöÆÛºí·ÏÀÌ ¼Õ»óµÇ¾úÀ»°æ¿ì ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© ¸ÞÀμöÆÛºí·ÏÀ» º¹±¸ÇÒ¼ö ÀÖ´Ù.



µû¶ó¼­ ¸ÞÀμöÆÛºí·ÏÀ» º¹±¸ÇÏ´Â ¼ø¼­¸¦ º»´Ù¸é,

ù¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸µÇÁö ¾ÊÀ»°æ¿ì µÎ¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸ÇÑ´Ù.

µÎ¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸µÇÁö ¾ÊÀ»°æ¿ì ¼¼¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸ÇÑ´Ù.

¼¼¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸µÇÁö ¾ÊÀ»°æ¿ì ³×¹ø° ¹é¾÷¼öÆÛºí·ÏÀ¸·Î º¹±¸ÇÑ´Ù.

»ý·«....



ÀÌ»ó°ú °°ÀÌ ÆÄƼ¼Ç(ÆÄÀϽýºÅÛ)ÀÇ ¿ë·®ÀÌ Å©¸é Ŭ¼ö·Ï ¹é¾÷¼öÆÛºí·ÏÀÇ °³¼öµµ ¸¹¾ÆÁö°Ô µÈ´Ù.

¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© ¸ÞÀμöÆÛºí·ÏÀ» º¹±¸ÇÏ·ÁÇÒ °æ¿ì ¹é¾÷¼öÆÛºí·ÏÀÇ ºí·Ï¹øÈ£¸¦ ¾Ë°í ÀÖ¾î¾ßÇÑ´Ù.

À§¿¡¼­ º»°Í°ú °°ÀÌ ¹é¾÷¼öÆÛºí·ÏÀÇ ºí·Ï¹øÈ£¸¦ È®ÀÎÇÏ·Á¸é dumpe2fs /dev/sdb | grep superblock¸í·É¾î¸¦ »ç¿ëÇÏ¸é µÈ´Ù.



>¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© ¸ÞÀμöÆÛºí·ÏÀ» º¹±¸ÇÏ´Â ¹æ¹ý

ù¹ø° ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ : e2fsck -b 32768 /dev/sdb

µÎ¹ø° ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ : e2fsck -b 98304 /dev/sdb

¼¼¹ø° ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ : e2fsck -b 163840 /dev/sdb

³×¹ø° ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ : e2fsck -b 229376 /dev/sdb

»ý·«...



º¹±¸ÇÏ´Â °úÁ¤¿¡¼­ ³Ê¹« ¸¹Àº "FIx?" ¿Í °°Àº Áú¹®ÀÌ ¹Ýº¹µÈ´Ù¸é, -y¿É¼Ç°ú -p¿É¼ÇÀ» ÇÔ²² »ç¿ëÇÏ´Â °ÍÀÌ ÁÁ´Ù.



¸ÞÀμöÆÛºí·ÏÀ» º¹±¸ ÇÒ¶§ -f¿É¼ÇÀ» ÇÔ²² »ç¿ëÇÏ¸é º¸´Ù °­·ÂÇÑ °­Á¦º¹±¸¸¦ ¼öÇàÇÏ°Ô µÈ´Ù.

[root@os1 ~]# e2fsck -f -j ext3 -b 32768 /dev/sdb -y

e2fsck 1.39 (29-May-2006)

/dev/sdb is mounted.



WARNING!!! Running e2fsck on a mounted filesystem may cause

SEVERE filesystem damage.



Do you really want to continue (y/n)? yes



Pass 1: Checking inodes, blocks, and sizes

Pass 2: Checking directory structure

Pass 3: Checking directory connectivity

Pass 4: Checking reference counts

Pass 5: Checking group summary information

Free blocks count wrong for group #0 (23981, counted=17397).

Fix? yes



Free blocks count wrong (249499, counted=242915).

Fix? yes



Free inodes count wrong for group #0 (16373, counted=16157).

Fix? yes



Free inodes count wrong (131061, counted=130845).

Fix? yes





/dev/sdb: ***** FILE SYSTEM WAS MODIFIED *****

/dev/sdb: 227/131072 files (0.4% non-contiguous), 19229/262144 blocks

»ç¿ëÇÑ ¸í·É¾î¸¦ »ìÆ캸°Ú´Ù.

e2fsck : ÆÄÀϽýºÅÛ Á¡°Ë/º¹±¸

-f : °­Á¦ Á¡°Ë/º¹±¸

-j ext3 : ÆÄÀϽýºÅÛÀÌ ext3Çü½ÄÀÓÀ» ÁöÁ¤

-b 32768 : ºí·Ï¹øÈ£ 32768ÀΠù¹ø° ¹é¾÷¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© ¸ÞÀμöÆÛºí·ÏÀ» º¹±¸

/dev/sdb : º¹±¸ÇÏ·Á´Â ÆÄÀϽýºÅÛ(ÀåÄ¡)

-y : "Fix?"¿¡ ¹«Á¶°Ç yes¶ó°í ÀÀ´äÇϵµ·Ï ¼³Á¤



#mke2fsȤÀº mkfs¸í·É¾î¸¦ ÀÌ¿ëÇÏ¿© ÆÄÀϽýºÅÛÀ» »ý¼ºÇÑÈÄ¿¡ "lost+fount"¶ó´Â µð·ºÅ丮°¡ »ý¼ºµÈ´Ù. ÀÌ µð·ºÅ丮´Â ÆÄÀϽýºÅÛÀÇ Á¡°ËÀÛ¾÷ °á°ú·Î ¿¬°áµÇÁö ¾ÊÀº ÆÄÀÏ¿¡ ´ëÇÑ Á¤º¸¸¦ ÀúÀåÇÏ°í ÀÖ´Â Àå¼ÒÀÌ´Ù.

ÆÄÀϸí°ú ÆÄÀÏÀ§Ä¡°¡ Á¤È®Çϱâ ÆľǵÇÁö ¾Ê¾Æ¼­ Àӽ÷Πº¸°üÇصа÷ÀÌ´Ù. µû¶ó¼­ e2fsck·Îµµ º¹±¸µÇÁö ¾ÊÀº ÆÄÀϵéÀº ÀÌ µð·ºÅ丮¿¡ º¸¸é ¼ýÀÚ·Î µÈ ÆÄÀϵéÀÌ ´Ù¼ö Á¸ÀçÇÏ°í ÀÖÀ½À» º¼¼ö ÀÖÀ»°ÍÀÌ´Ù. ÀÌ ÆÄÀϵéÀº catÀ̳ª viµîÀ¸·Î ¿­¾îº¸¸é ÀϹÝÀûÀÎ ÆÄÀϳ»¿ë°ú °ÅÀÇ À¯»çÇÔÀ» ¾Ë¼ö ÀÖ´Ù.

µû¶ó¼­ ºÒ°¡ÇÇÇÑ °æ¿ì¿¡´Â "lost+found"³»¿¡ ÀÖ´Â ¼ýÀÚ·Î µÈ ÆÄÀϵéÀ» ´ë»óÀ¸·Î Çϳª¾¿ º¹±¸ÇØ¾ß ÇÏ´Â °æ¿ìµµ ÀÖ´Ù.

°ü·Ã±Û : ¾øÀ½ ±Û¾´½Ã°£ : 2020/02/27 23:28 from 122.32.218.68

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