¸®´ª½ºÆÄÀϽýºÅÛÁ¡°Ë°ú º¹±¸°ÁÂ. e2fsck 1Æí
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1 : ¸®´ª½º ÆÄÀϽýºÅÛÀÇ Á¡°Ë °ú º¹±¸¸¦ ÇÏ´Â e2fsck °³·Ð
2 : e2fsck¸í·É¾î·Î ƯÁ¤ ÆÄÀϽýºÅÛÀÇ Á¡°Ë ¹× º¹±¸ÇÏ´Â ¹æ¹ý
3 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ °Á¦ Á¡°Ë ¹× º¹±¸Çϱâ
4 : ext3(Àú³Î¸µ)ÆÄÀϽýºÅÛÀÇ Á¡°Ë ¹× º¹±¸Çϱâ
5 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ °Á¦ Á¡°Ë ¹× »ó¼¼ ÀÛ¾÷³»¿ªº¸±â
6 : ÆÄÀϽýºÅÛÀÇ ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ ÆÄÀϽýºÅÛ º¹±¸¹æ¹ý
7 : e2fsck·Î µð½ºÅ©ÀÇ ¹èµåºí·Ï ¸¶Å©Çϱâ
8 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ °Á¦Á¡°ËÇϱâ
9 : e2fsck·Î ÆÄÀϽýºÅÛ Á¡°Ë½Ã ¹öÆÛij½¬ÀÇ ³»¿ëÀ» µð½ºÅ©¿¡ ÀúÀåÇϱâ
10 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ Á¡°Ë½Ã ¿À·ù ÀÚµ¿¼öÁ¤Çϱâ
11 : e2fsck·Î ÆÄÀϽýºÅÛ Á¡°Ë½Ã ¸ðµç Áú¹®Ç׸ñ¿¡ Yes¶ó°í ÀÚµ¿ÀÔ·ÂÇϱâ
12 : e2fsck»ç¿ë½Ã ÆÄÀϽýºÅÛÀ» ÀбâÀü¿ëÀ¸·Î ¿°í ¸ðµç Áú¹®¿¡ no¶ó°í ÀÚµ¿ ´äÇϱâ
1 : ¸®´ª½º ÆÄÀϽýºÅÛÀÇ Á¡°Ë°ú º¹±¸¸¦ ÇÏ´Â e2fsck °³·Ð
¸®´ª½º ÆÄÀϽýºÅÛ Á¡°Ë¹× º¹±¸¸¦ ÇÒ ¼ö ÀÖ´Â ¸í·É¾îÀÔ´Ï´Ù. fsckÀÇ È®Àå¸í·É¾î¶ó°í ÇÒ ¼ö ÀÖÀ¸¸ç ¸®´ª½º¿¡¼ »ç¿ë°¡´ÉÇÑ °ÅÀÇ ¸ðµç Á¾·ùÀÇ ÆÄÀϽýºÅÛÀÇ Á¡°Ë°ú º¹±¸¸¦ ÇÒ ¼ö ÀÖ´Â ¸í·É¾îÀÔ´Ï´Ù.
ÇѸ¶µð·Î ¸®´ª½º ÆÄÀϽýºÅÛÀÇ Á¡°Ë ¶Ç´Â º¹±¸¸¦ À§ÇÏ¿© ¼¹ö°ü¸®ÀÚ°¡ ¹Ýµå½Ã ²À ¾Ë¾Æ¾ßÇÏ´Â ¸Å¿ì Áß¿äÇÑ ¸í·É¾îÀÔ´Ï´Ù. °¡²û¾¿ ÆÄÀϽýºÅÛ ¿À·ù·Î ÀÎÇÏ¿© ¼¹öºÎÆÃÀÌ Á¤»óÀûÀ¸·Î µÇÁö¾ÊÀ» °æ¿ì¿¡ ÀÌ ¸í·É¾î¸¦ ÀÌ¿ëÇÏ¿© ÆÄÀϽýºÅÛÀÇ ¿À·ù¸¦ ¼öÁ¤ÇÏ°í Á¤»óÀûÀ¸·Î ºÎÆÃÇÏ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù.
ÆÄÀϽýºÅÛÀÇ ¿À·ù·Î ÀÎÇÑ ¼¹ö´Ù¿îÀ̳ª ¼¹öÀå¾Ö´Â ÀÌ ¸í·É¾î¸¦ Á¤È®ÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Â °Í¸¸À¸·Îµµ ÀÀ±ÞÁ¶Ä¡ÇÏ¿© Á¤»óȸ¦ ½Ãų ¼ö ÀÖ½À´Ï´Ù.
µû¶ó¼ ±»ÀÌ ÀÌ ¸í·É¾îÀÇ Á߿伺¿¡ ´ëÇؼ ´õ ÀÌ»ó ¾ð±ÞÇÏÁö ¾Ê´õ¶óµµ ÀÌ ¸í·É¾îÀÇ Çʿ伺°ú Á߿伺¿¡ ´ëÇؼ´Â ÃæºÐÈ÷ Àü´ÞµÇ¾úÀ¸¸®¶ó »ý°¢ÇÕ´Ï´Ù.
¸®´ª½º ½Ã½ºÅÛÀÌ ºÎÆõǴ °úÁ¤¿¡¼ /etc/rc.d/rc.sysinit ½ºÅ©¸³Æ®°¡ ÀÚµ¿À¸·Î ½ÇÇàÀÌ µË´Ï´Ù.
/etc/rc.d/rc.sysinit½ºÅ©¸³Æ®¸¦ È®ÀÎÇØ º¸½Ã¸é ÆÄÀϽýºÅÛÀ» Á¡°ËÇÏ´Â ¸í·É¾î°¡ ½ÇÇàµÇ´Â ´Ü°è°¡ ÀÖ½À´Ï´Ù. µû¶ó¼ ½Ã½ºÅÛºÎÆýø¶´Ù ÆÄÀϽýºÅÛ Á¡°Ë¸í·É¾î°¡ ½ÇÇàµË´Ï´Ù.
¼¹ö°ü¸®¸¦ ÇÏ´Ùº¸¸é ÈçÇÏÁö¾Ê°Ô °æÇèÇÏ´Â °ÍÀÌ ÆÄÀϽýºÅÛ ¿¡·¯·Î ÀÎÇÑ ½Ã½ºÅÛ ´Ù¿îÀÔ´Ï´Ù.
ÆÄÀϽýºÅÛ ¿¡·¯°¡ ¹ß»ýÇÏ´Â ÀÌÀ¯´Â ¿©·¯°¡Áö°¡ ÀÖÁö¸¸ ±×Áß¿¡¼µµ ¹èµåºí·Ï(Bad Block)ÀÌ °¡Àå Å« ¿øÀÎÀÎ °Í °°½À´Ï´Ù. µû¶ó¼ ÀÌ ¸í·É¾î¿Í ÇÔ²² ¹èµåºí·ÏÀ» Á¡°ËÇÏ´Â ¸í·É¾îÀÎ badblocks¸í·É¾î¸¦ ¹Ýµå½Ã ÀÍÇôµÎ½Ã±â ¹Ù¶ø´Ï´Ù.
ƯÈ÷ e2fsck¸í·É¾îÀÇ Á¤È®ÇÑ »ç¿ë¹ýÀ» ÀÍÈ÷°í ÆÄÀϽýºÅÛ º¹±¸¸¦ Á¤È®ÇÏ°Ô ÇÒ ¼ö ÀÖ´Ù´Â °Í¸¸À¸·Î ¼¹ö°ü¸®ÀÚ¿¡°Ô´Â À§±ÞÇÑ °æ¿ì¿¡ ¸Å¿ì Å« ÈûÀÌ µÉ °ÍÀÔ´Ï´Ù. µû¶ó¼ ¼¹ö°ü¸®¸¦ ÇϽô ºÐµé²²¼´Â fsck¸í·É¾î¿Í badblocks¸í·É¾î¿Í ÇÔ²² ÀÌ ¸í·É¾î¸¦ ¹Ýµå½Ã ÀÍÇôµÎ½Ã±â ¹Ù¶ø´Ï´Ù.
±×¸®°í e2fsck´Â ´ÙÀ½°ú °°Àº Á¾·áÄڵ带 Ãâ·ÂÇÕ´Ï´Ù. Áï, e2fsckÀÇ Á¾·áÄÚµåÀÇ Á¾·ù¿Í Àǹ̴ ´ÙÀ½°ú °°½À´Ï´Ù. e2fsckÀÇ Á¾·áÄÚµå´Â ¾Æ·¡ °ªÀÇ ÇÕÀ¸·Î Ç¥½ÃµË´Ï´Ù.
0 - ¿¡·¯¾øÀÌ Á¤»óÀûÀÎ Á¾·á¸¦ ÀǹÌÇÔ.
1 - ÆÄÀϽýºÅÛÀ» º¹±¸ÇÏ¿´À½À» ÀǹÌÇÔ.
2 - ÆÄÀϽýºÅÛÀÌ º¹±¸µÇ¾î ½Ã½ºÅÛÀÌ ÀçºÎÆõǾî¾ßÇÔÀ» ÀǹÌÇÔ.
4 - ÀÛ¾÷´ë»ó ÆÄÀϽýºÅÛ¿¡ ¹®Á¦°¡ ÀÖÀ¸³ª º¹±¸ÇÏÁö¾Ê°í ±×´ë·Î µÎ¾úÀ½À» ÀǹÌÇÔ.
8 - ½ÇÇà¿¡·¯¸¦ ÀǹÌÇÔ.
16 - »ç¿ë¹ý(Usage)¶Ç´Â ¹®¹ý(Syntax)¿¡·¯¸¦ ÀǹÌÇÔ.
32 - e2fsckÀÛ¾÷ÀÌ »ç¿ëÀÚ¿¡ ÀÇÇؼ Ãë¼Ò(Cancel)µÇ¾úÀ½À» ÀǹÌÇÔ.
128 - °øÀ¯ ¶óÀ̺귯¸®(Shared library) ¿¡·¯¸¦ ÀǹÌÇÔ.
±×¸®°í ½ÇÁ¦·Î e2fsckÀÛ¾÷¿¡¼ ±âº»ÀûÀ¸·Î Á¡°ËÇÏ´Â Ç׸ñÀº ´ÙÀ½°ú °°½À´Ï´Ù.
- inodes Á¡°Ë
- blocks Á¡°Ë
- sizes Á¡°Ë
- µð·ºÅ丮±¸Á¶ Á¡°Ë
- µð·ºÅ丮 ¿¬°á¼ºÁ¡°Ë
- ÆÄÀϸµÅ© Á¤º¸
- ÀüüÆÄÀÏ°¹¼ö Á¡°Ë
- Àüüºí·Ï¼öÁß »ç¿ëÁßÀÎ ºí·Ï Á¡°Ëµî
¸í·É¾îÀ§Ä¡ : /sbin/e2fsck
»ç¿ëÇü½Ä
e2fsck [-pacnyrdfvtFV][-b ¼öÆÛºí·Ï][-B ºí·ÏÅ©±â][-l|-L ¹èµåºí·Ï¸ñ·ÏÈÀÏ] ÀåÄ¡¸í
ÀåÄ¡¸í¿¡´Â ´ÙÀ½¿¹¿Í °°ÀÌ µð½ºÅ©ÀåÄ¡¸íÀ» Á¤È®ÇÏ°Ô ÁöÁ¤ÇØ ÁÖ¼Å¾ß ÇÕ´Ï´Ù.
/dev/sda1
/dev/sda2
/dev/hda1
/dev/hdb1
À§ÀÇ ÀåÄ¡¸íµéÀº ¸¶¿îÆ®°¡ µÇ¾îÀÖÁö¾ÊÀº °æ¿ì¿¡ fdisk¸í·É¾î·Î È®ÀÎÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù. ¸¸¾à ÇöÀç ¿î¿ëµÇ°í ÀÖ´Â ¼¹ö¶ó¸é Áï, ¸¶¿îÆ®°¡ µÇ¾îÀÖ´Â »óŶó¸é "df" ¶Ç´Â "mount"µîÀ¸·Î À§ÀÇ ÆÄÀϽýºÅÛ¸íÀ» È®ÀÎÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.
[ÁÖÀÇ»çÇ×]
e2fsck¸í·É¾î·Î ÆÄÀϽýºÅÛÀ» Á¡°ËÇÏ°í º¹±¸ÇÒ ¶§¿¡´Â ´ë»ó ÆÄÀϽýºÅÛÀÌ ¸¶¿îÆ®µÇ¾îÀÖÁö¾ÊÀº »óÅ¿¡¼ ½ÇÇàÇϽñ⠹ٶø´Ï´Ù. ¸¸¾à ¸¶¿îÆ®µÇ¾îÀÖ´Â »óÅ¿¡¼ ÀÌ ¸í·É¾î¸¦ »ç¿ëÇÏ½Å´Ù¸é ¿øÇÏÁö¾ÊÀº ¿À·ù¸¦ ¹ß»ýÇÒ ¼öµµ ÀÖ½À´Ï´Ù.
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2 : e2fsck¸í·É¾î·Î ƯÁ¤ ÆÄÀϽýºÅÛÀÇ Á¡°Ë ¹× º¹±¸ÇÏ´Â ¹æ¹ý
e2fsck·Î ÇÒ ¼ö ÀÖ´Â °¡Àå ÈçÇÑ ÀÛ¾÷Áß ÇÑ°¡Áö°¡ ÆÄÀϽýºÅÛ¿¡ ÀÌ»óÀÌ Àִ°¡¸¦ °£´ÜÈ÷ Á¡°ËÇÏ´Â °ÍÀÔ´Ï´Ù. ¾Æ·¡ÀÇ ¿¹´Â e2fsck¸¦ ÀÌ¿ëÇÏ¿© /dev/hda1¶ó´Â ÆÄÀϽýºÅÛ(ÀåÄ¡¸í)À» Á¡°ËÇÑ ¿¹ÀÔ´Ï´Ù. ¾Æ·¡ÀÇ ¿¹´Â ÇöÀç ¸¶¿îÆ®µÈ ÆÄÀϽýºÅÛ(/dev/hda1)À» e2fsck·Î Á¡°ËÇϱ⠶§¹®¿¡ "WARNING!!!"¸Þ½ÃÁö°¡ ³ª¿Â °ÍÀÔ´Ï´Ù.
¸¶¿îÆ®µÈ ÆÄÀϽýºÅÛÀ» ´ë»óÀ¸·Î Á¡°ËÀ» ÇÒ ¶§¿¡´Â ½É°¢ÇÑ ¼Õ»óÀÌ ÀÖÀ» ¼ö ÀÖ´Ù´Â ÀǹÌÀÇ ¸Þ½ÃÁöÀÔ´Ï´Ù.
[root@file root]# e2fsck /dev/hda1 e2fsck 1.32 (09-Nov-2002) /dev/hda1 is mounted.
WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.
Do you really want to continue (y/n)? yes
/boot: recovering journal /boot: clean, 41/32128 files, 13384/128488 blocks [root@file root]#
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Áï, À§ÀÇ ¡°Do you really want to continue (y/n)?¡±¿¡¼ ¡°yes¡±¸¦ ÀÔ·ÂÇÏ½Ã¸é °è¼Ó ÁøÇàµË´Ï´Ù. ¸¸¾à ¡°no¡±¶ó°í ÀÔ·ÂÇÏ½Ã¸é ½ÇÇàÁ¾·áÇÕ´Ï´Ù.
e2fsck·Î /dev/hda1À» Á¡°ËÇÑ °á°ú À§¿Í °°ÀÌ º°´Ù¸¥ ¸Þ½ÃÁö°¡ ¾ø´Ù¸é ÆÄÀϽýºÅÛ¿¡´Â ÀÌ»óÀÌ ¾ø´Ù´Â °ÍÀ» ÀǹÌÇÕ´Ï´Ù.
3 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ °Á¦ Á¡°Ë ¹× º¹±¸Çϱâ
ÆÄÀϽýºÅÛ¿¡ ÀÌ»óÀÌ ¾ø´õ¶óµµ °Á¦ÀûÀ¸·Î ÆÄÀϽýºÅÛÀ» Á¡°ËÇÏ·Á¸é -f¿É¼ÇÀ» »ç¿ëÇÕ´Ï´Ù.
º¸½Ã´Â ¹Ù¿Í °°ÀÌ e2fsck´Â inodesÁ¡°Ë, blocks Á¡°Ë, sizesÁ¡°Ë, µð·ºÅ丮±¸Á¶ Á¡°Ë,µð·ºÅ丮 ¿¬°á¼ºÁ¡°Ë, ÀüüÆÄÀÏ°¹¼ö Á¡°Ë, Àüüºí·Ï¼öÁß »ç¿ëÁßÀÎ ºí·Ï Á¡°ËµîÀ» ¼öÇàÇÕ´Ï´Ù.
[root@file root]# e2fsck -f /dev/hda1 e2fsck 1.32 (09-Nov-2002) /dev/hda1 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 /boot: 41/32128 files (2.4% non-contiguous), 13384/128488 blocks [root@file root]#
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Áï, À§ÀÇ ¿¹´Â -f¿É¼ÇÀ» »ç¿ëÇÏ¿© /dev/hda1ÆÄÀϽýºÅÛÀÇ °Á¦Á¡°Ëº¹±¸¸¦ ¼öÇàÇÑ ¿¹ÀÔ´Ï´Ù.
4 : ext3(Àú³Î¸µ)ÆÄÀϽýºÅÛÀÇ Á¡°Ë ¹× º¹±¸Çϱâ
e2fsck´Â À̸§¿¡¼µµ ¾Ë¼ö ÀÖ´Â ¹Ù¿Í °°ÀÌ ext2ÆÄÀϽýºÅÛÀ» ±âº» ÀÛ¾÷´ë»óÀ¸·Î °³¹ßµÈ °ÍÀÔ´Ï´Ù. ÇÏÁö¸¸ -j ¿É¼ÇÀ» »ç¿ëÇϽøé ext3ÆÄÀϽýºÅÛÀÇ Á¡°Ë¹× º¹±¸¸¦ ÇÒ ¼ö ÀÖ½À´Ï´Ù.
¾Æ·¡ÀÇ ¿¹´Â ext3·Î Æ÷¸ËµÈ ÆÄÀϽýºÅÛÀÇ Á¡°Ë°ú º¹±¸¸¦ ¼öÇàÇÑ ¿¹ÀÔ´Ï´Ù.
Áï, e2fsck¿¡¼ "-j ext3"¶ó´Â ¿É¼ÇÀ» ÇÔ²² ÁÖ½Ã¸é µË´Ï´Ù.
[root@file root]# e2fsck -j ext3 /dev/hda1 e2fsck 1.32 (09-Nov-2002) /dev/hda1 is mounted.
WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.
Do you really want to continue (y/n)? yes
/boot: clean, 41/32128 files, 13384/128488 blocks [root@file root]#
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ext3·Î Æ÷¸ËµÈ ÆÄÀϽýºÅÛ Á¡°Ë°ú º¹±¸½Ã¿¡ ÆíÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Â fsck.ext3¶ó´Â ¸í·É¾î¸¦ »ç¿ëÇÏ½Ç ¼öµµ ÀÖ½À´Ï´Ù. fsck.ext3¶ó´Â ¸í·É¾î´Â ¡°e2fsck -j ext3¡±¸í·É¾î¿Í µ¿ÀÏÇÑ °ÍÀÌÁö¸¸ ¸í·É¾îÀÇ À̸§¿¡¼µµ ¾Ë ¼ö ÀÖµíÀÌ ext3·Î Æ÷¸ËµÈ ÆÄÀϽýºÅÛ¸¸À» ±× ´ë»óÀ¸·Î ÇÏ°í ÀÖ½À´Ï´Ù.
5 : e2fsck·Î ƯÁ¤ ÆÄÀϽýºÅÛ °Á¦ Á¡°Ë ¹× »ó¼¼ ÀÛ¾÷³»¿ªº¸±â
¸¸¾à e2fsckÀÇ ¿©·¯°¡Áö ¿É¼Çµé°ú ÇÔ²² -v¿É¼ÇÀ» »ç¿ëÇÏ¸é ´ÙÀ½¿¹¿Í °°ÀÌ ÆÄÀϽýºÅÛ Á¡°ËÀÇ »ó¼¼Á¤º¸¸¦ È®ÀÎÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.
[root@file root]# e2fsck -fv /dev/hda1 e2fsck 1.32 (09-Nov-2002) /dev/hda1 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
41 inodes used (0%) 1 non-contiguous inodes (2.4%) # of inodes with ind/dind/tind blocks: 9/3/0 13384 blocks used (10%) 0 bad blocks 0 large files
25 regular files 3 directories 0 character device files 0 block device files 0 fifos 0 links 4 symbolic links (4 fast symbolic links) 0 sockets -------- 32 files [root@file root]#
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Áï, À§ÀÇ ¿¹´Â e2fsck¸í·É¾î·Î /dev/hda1ÆÄÀϽýºÅÛÀÇ °Á¦(-f)Á¡°Ë ¹× º¹±¸¸¦ ¼öÇàÇÏ¸é¼ »ó¼¼ÇÑ(-v) °á°ú¸Þ½ÃÁö¸¦ Ãâ·ÂÇÑ ¿¹ÀÔ´Ï´Ù.
6 : ÆÄÀϽýºÅÛÀÇ ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ ÆÄÀϽýºÅÛ º¹±¸¹æ¹ý
¸¸¾à e2fsck·Î ÆÄÀϽýºÅÛÀÌ ÀÚµ¿º¹±¸°¡ µÇÁö ¾ÊÀ» °æ¿ì¿¡´Â ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© Á÷Á¢ º¹±¸¸¦ ÇØÁÖ¼Å¾ß ÇÕ´Ï´Ù. ÀÌ ¹æ¹ýÀ» ÀÌ¿ëÇÏ½Ã¸é ¹°¸®ÀûÀ¸·Î ¹®Á¦ÀÖ´Â ºÎºÐ ÀÌ¿Ü¿¡´Â °ÅÀÇ ¸ðµç µ¥ÀÌÅ͸¦ º¹±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù. ´Ü, ¸®´ª½ºÀÇ ÆÄÀϽýºÅÛ±¸Á¶¿Í ¼öÆÛºí·ÏÀÇ Á¤È®ÇÑ À§Ä¡¸¦ ¾Ë¾Æ¾ß¸¸ °¡´ÉÇÑ ¹æ¹ýÀÔ´Ï´Ù.
ÀÌ ¹æ¹ýÀº e2fsckÀÇ -b¿É¼ÇÀ» ÀÌ¿ëÇÑ ¹æ¹ýÀ̸ç "-b ¼öÆÛºí·Ï¹øÈ£"¸¦ ÇÔ²² ÁÖ½Ã¸é µË´Ï´Ù.
¸ÕÀú ¼öÆÛºí·Ï¿¡ ´ëÇÑ ÀÌÇظ¦ µå¸®±â À§ÇÏ¿© °£´ÜÇÑ ¼³¸íÀ» µå¸®µµ·Ï ÇÏ°Ú½À´Ï´Ù.
¸®´ª½ºÀÇ ÆÄÀϽýºÅÛÀº ºí·Ï±×·ì(Block Group)À̶ó´Â °ÍÀ¸·Î ±âº»±¸Á¶¸¦ ÀÌ·ç°í ÀÖÀ¸¸ç ¸ðµç ºí·Ï±×·ìÀÇ ¸Ç ¾Õ¿¡´Â ¼öÆÛºí·ÏÀ̶ó´Â °ÍÀÌ Á¸ÀçÇÕ´Ï´Ù. ºí·Ï±×·ì¿¡ Á¸ÀçÇÏ´Â ¸ðµç ¼öÆÛºí·ÏµéÀº µ¿ÀÏÇÑ Á¤º¸¸¦ °¡Áö°í ÀÖÀ¸¸ç ÆÄÀϽýºÅÛÀÌ Æı«µÇ¾úÀ» °æ¿ì¿¡ ÀÌ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© º¹±¸¸¦ ÇÒ ¼ö ÀÖµµ·Ï ÁغñÇÏ°í ÀÖ½À´Ï´Ù.
Áï ¿©±â¼ ¼³¸íÇÒ ³»¿ëÀº e2fsckÀÇ ±âº»ÀûÀÎ ½ÇÇàÀ¸·Î ±úÁø ÆÄÀϽýºÅÛÀÌ Á¤»óÀûÀÎ º¹±¸°¡ µÇÁö ¾ÊÀ» °æ¿ì¿¡ ±× ´ÙÀ½ º¹±¸¹æ¹ýÀ¸·Î ¼öÆÛºí·ÏÀ̶ó´Â °ÍÀ» ÀÌ¿ëÇÏ¿© º¹±¸¸¦ ÇÑ´Ù´Â ÀǹÌÀÔ´Ï´Ù.
¼öÆÛºí·Ï(Superblock)À̶ó´Â °ÍÀº ÆÄÀϽýºÅÛÀÇ Å©±â¿Í ÆÄÀϽýºÅÛÁ¤º¸¿¡ ´ëÇÑ ³»¿ëÀÌ µé¾îÀÖ½À´Ï´Ù.
´ÙÀ½Àº ¸®´ª½ºÀÇ ´ëÇ¥ÀûÀÎ ÆÄÀϽýºÅÛ ±¸Á¶¸¦ ³ªÅ¸³½ °ÍÀÔ´Ï´Ù.
[¼öÆÛºí·Ï°üÁ¡¿¡¼ÀÇ ¸®´ª½º ÆÄÀϽýºÅÛ±¸Á¶¸¦ µµ½ÄÈÇÑ ±×¸²]
À§ÀÇ ±×¸²À» º¸½Ã¸é ÀÌÇØÇÒ ¼ö ÀÖ´Â °Íó·³ ÆÄÀϽýºÅÛÀÇ ¸Ç ¾Õ¿¡´Â ù¹ø° ¼öÆÛºí·ÏÀÌ Á¸ÀçÇÕ´Ï´Ù.
±×¸®°í ±× ´ÙÀ½ ù¹ø° ºí·Ï±×·ìÀÇ ¸Ç ¾Õ¿¡´Â µÎ¹ø° ¼öÆÛºí·ÏÀÌ Á¸ÀçÇÕ´Ï´Ù.
±×¸®°í ±× ´ÙÀ½ µÎ¹ø° ºí·Ï±×·ìÀÇ ¸Ç ¾Õ¿¡´Â ¼¼¹ø° ¼öÆÛºí·ÏÀÌ Á¸ÀçÇÕ´Ï´Ù.
±×¸®°í n¹ø° ºí·Ï±×·ì¿¡´Â n+1¹ø° ¼öÆÛºí·ÏÀÌ Á¸ÀçÇÕ´Ï´Ù.
e2fsckÀÇ ÀϹÝÀûÀÎ ¹æ¹ýÀ¸·Î ±úÁø ÆÄÀϽýºÅÛÀÇ º¹±¸°¡ ºÒ°¡´É ÇÒ °æ¿ì¿¡´Â ´ÙÀ½°ú °°ÀÌ ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÏ¿© º¹±¸¸¦ ÇÕ´Ï´Ù.
´ÙÀ½Àº À§ÀÇ ±×¸²¿¡¼ º¸½Ã´Â ¹Ù¿Í °°ÀÌ ¼öÆÛºí·ÏÀÇ ºí·Ï¹øÈ£¸¦ °è»êÇÑ °ÍÀÔ´Ï´Ù. 8192°³ÀÇ ºí·ÏÀº ÇϳªÀÇ ºí·Ï±×·ì(Block Group)ÀÌ µË´Ï´Ù. Áï, ù¹ø° ¼öÆÛºí·ÏÀº 1¹ø° ºí·Ï¿¡ Á¸ÀçÇÏ¸ç µÎ¹ø° ¼öÆÛºí·ÏÀº 1+8192¹ø°ÀÎ 8193¹øºí·Ï¿¡ Á¸ÀçÇÕ´Ï´Ù.
¼¼¹ø° ¼öÆÛºí·ÏÀº 1+8192*2¹ø°ÀÎ 16385¹ø° ¼öÆÛºí·Ï¿¡ Á¸ÀçÇÕ´Ï´Ù. Áï, ´ÙÀ½°ú °°ÀÌ °è»êÇÒ ¼ö ÀÖ½À´Ï´Ù.
- ù¹ø° ¼öÆÛºí·Ï : 1¹øºí·Ï¿¡ À§Ä¡ÇÔ.
- µÎ¹ø° ¼öÆÛºí·Ï : 1¹øºí·Ï + 8192¹øºí·Ï*1 = 8193¹ø° ºí·Ï¿¡ À§Ä¡ÇÔ.
- ¼¼¹ø° ¼öÆÛºí·Ï : 1¹øºí·Ï + 8192¹øºí·Ï*2 = 16385¹ø° ºí·Ï¿¡ À§Ä¡ÇÔ.
- n ¹ø° ¼öÆÛºí·Ï : 1¹øºí·Ï + 8192¹øºí·Ï*n ¹ø°ºí·Ï¿¡ À§Ä¡ÇÔ.
´ÙÀ½Àº ù¹ø° ¼öÆÛºí·ÏÀÌ ±úÁ³±â ¶§¹®¿¡ ÀϹÝÀûÀÎ ¹æ¹ýÀ¸·Î º¹±¸°¡ ºÒ°¡´ÉÇÏ°Ô µÈ °æ¿ì·Î¼ µÎ¹ø° ¼öÆÛºí·ÏÀ¸·Î º¹±¸¸¦ ÇÏ´Â ¿¹¸¦ º¸ÀÌ°í ÀÖ½À´Ï´Ù.
[root@file root]# e2fsck -b 8193 /dev/sda1 e2fsck 1.32 (09-Nov-2002) /dev/sda1 is mounted.
WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.
Do you really want to continue (y/n)? yes
/boot was not cleanly unmounted, check forced. 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
/boot: ***** FILE SYSTEM WAS MODIFIED ***** /boot: 41/32128 files (2.4% non-contiguous), 13384/128488 blocks [root@file root]#
|
¼¼¹ø° ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ÀÛ¾÷ : # e2fsck -b 16385 /dev/sda1
³×¹ø° ¼öÆÛºí·ÏÀ» ÀÌ¿ëÇÑ º¹±¸ÀÛ¾÷ : # e2fsck -b 24577 /dev/sda1
µî°ú°°Àº ¹æ¹ýÀ¸·Î ÆÄÀϽýºÅÛÀ» º¹±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.
Âü°í·Î mke2fs·Î ÆÄÀϽýºÅÛÀ» »ý¼ºÇÑ ÈÄ¿¡´Â ¹Ýµå½Ã lost+found¶ó´Â µð·ºÅ丮°¡ »ý¼ºÀÌ µË´Ï´Ù. ÀÌ µð·ºÅ丮´Â ÆÄÀϽýºÅÛÀÇ Á¡°ËÀÛ¾÷ °á°ú·Î ¿¬°áµÇÁö ¾ÊÀº ÆÄÀÏ¿¡ ´ëÇÑ Á¤º¸¸¦ ÀúÀåÇÏ°í ÀÖ´Â Àå¼ÒÀÔ´Ï´Ù. Áï, ÆÄÀϸí°ú ÆÄÀÏÀÇ À§Ä¡°¡ Á¤È®ÇÏ°Ô ÆľǵÇÁö ¾Ê¾Æ¼ Àӽ÷Πº¸°üÇصР°÷ÀÔ´Ï´Ù. µû¶ó¼ e2fsck·Îµµ º¹±¸µÇÁö ¾ÊÀº ÆÄÀϵéÀº ÀÌ µð·ºÅ丮¿¡ º¸½Ã¸é ¼ýÀÚ·ÎµÈ ÆÄÀϵéÀÌ ´Ù¼ö Á¸ÀçÇÏ°í ÀÖÀ½À» º¸½Ç ¼ö ÀÖÀ» °ÍÀÔ´Ï´Ù. ÀÌ ÆÄÀϵéÀ» catÀ̳ª viµîÀ¸·Î ¿¾îº¸¸é ÀϹÝÀûÀÎ ÆÄÀϳ»¿ë°ú °ÅÀÇ À¯»çÇÔÀ» ¾Ë ¼ö ÀÖ½À´Ï´Ù.
µû¶ó¼ ºÒ°¡ÇÇÇÒ °æ¿ì¿¡´Â lost+found³»¿¡ ÀÖ´Â ¼ýÀÚ·Î µÈ ÆÄÀϵéÀ» ´ë»óÀ¸·Î Çϳª¾¿ º¹±¸ÇؾßÇÏ´Â °æ¿ìµµ ÀÖ½À´Ï´Ù. ÇÊÀÚ´Â ÆÄÀϽýºÅÛ º¹±¸ÀÛ¾÷À» Çö¸íÇÏ°Ô ÇÏ´Â °Íµµ Áß¿äÇÏÁö¸¸ µ¥ÀÌÅÍÀÇ ¹é¾÷ÀÌ °¡Àå ¿ì¼±½Ã µÇ¾î¾ß ÇÑ´Ù°í °Á¶ÇÏ°í ½Í½À´Ï´Ù.