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ÆÄƼ¼ÇÀÇ ÀÌÇØ

  • ÀÛ¼ºÀÚ
    Á¶ÀçÇõ (Mminzkn@minzkn.com)

  • °íÄ£°úÁ¤
    2003³â 9¿ù 22ÀÏ : óÀ½¾¸

ÆÄƼ¼Ç(Partition)ÀÇ ¸ñÀû

  • ù° : ÇϳªÀÇ ¹°¸®Àû µð½ºÅ©¸¦ ¸î°³ÀÇ ¿µ¿ªÀ¸·Î ³ª´©¾î °ü¸®°¡ ¿ëÀÌÇϵµ·Ï ÇÏ´Â °Í.
  • µÑ° : ¿î¿µÃ¼Á¦°¡ ¿©·¯°¡ÁöÀÎ °æ¿ì ±×·¯ÇÑ °¢°¢ÀÇ °íÀ¯ ÆÄÀϽýºÅÛÀ» ´ÜÀÏ ¿µ¿ª¿¡ µ¶¸³ÀûÀ¸·Î À¯ÁöÇÒ¼ö ÀÖ°Ô Çϱâ À§Çؼ­.
  • ¼Â° : ÇÑ ÆÄƼ¼ÇÀÌ ¼Õ½ÇµÇ´õ¶óµµ ´Ù¸¥ ÆÄƼ¼Ç ¿µ¿ªÀº ¼Õ½Ç·ÎºÎÅÍ º¸È£ÇÒ¼ö ÀÖ´Â È®·üÀ» ³ôÀ̱â À§ÇÑ ¼ö´Ü.

¸ÕÀú ¾Ë¾ÆµÑ ÇÊ¿ä°¡ ÀÖ´Â C/H/S, LBA mode¶õ?

CHS¸ðµå

Cylinder(0~1023), Head(0~15), Sector(1~63) ÀÌ·¸°Ô 3°¡Áö ¿ä¼Ò¸¦ ÅëÇÑ ÁÖ¼Ò¸ÅÇÎÀ» ÇÏ¿© ÃÖ´ë 528MByte°¡ ÁÖ¼Ò¸ÅÇÎ °¡´ÉÇÕ´Ï´Ù.

±×·¯³ª ¸¸¾à BIOS°¡ LBA¸¦ Áö¿øÇÏ°Ô µÇ¸é ³»ºÎÀûÀ¸·Î LBA·Î ¹Ù²Ù¾î Çìµå¼ö¸¦ ´Ã·Á °¡»óÀûÀÎ Çìµå¼ö¸¦ °®°Ô µÉ¼ö Àִµ¥ À̸¦ ÀÌ¿ëÇϸé HeadÀÇ ¹üÀ§´Â 0~15°¡ ¾Æ´Ñ 0~255 ÀÇ ¹üÀ§¸¦ ÁÖ¼Ò¸ÅÇÎ °¡´ÉÇÏ°Ô µË´Ï´Ù.

±×·¸°Ô µÇ¸é ÃÖ´ë ÁÖ¼Ò¸ÅÇÎ °¡´ÉÇÑ °ø°£Àº 8GByte°¡ µË´Ï´Ù.

¹Ù·Î ÀÌ Å©±â°¡ 1024½Ç¸°´õ Á¦¾àÀ̶ó´Â ¸»ÀÌ ³ª¿À´Â ±Ù°Å°¡ µË´Ï´Ù.

±×¸®°í BIOS¸¦ ÅëÇÏÁö ¾Ê°í PIO/DMA¸¦ ÅëÇÑ Á¢±ÙÀ» ½ÃµµÇϸé Ãß°¡ÀûÀ¸·Î Cylinder´Â 0~65,535ÀÇ ¹üÀ§¸¦ °¡Áú¼ö ÀÖ°í ¹Ý¸é¿¡ Head´Â 0~15ÀÇ ¹üÀ§°¡ µÇ¸ç Sector´Â 0~255ÀÇ ¹üÀ§¸¦ °¡Áú¼ö ÀÖµµ·Ï µÇ¾î ÀÖ½À´Ï´Ù.

ÀÌ´Â 2ÀÇ 28½ÂÀ» ¶æÇÏ¸ç °¡´ÉÇÑ ÁÖ¼Ò¸ÅÇÎ ¿µ¿ªÀº ÃÑ 128GByte°¡ µÇ´Â ºñ¾àÀûÀÎ ¹ßÀüÀ» °¡Áú¼ö ÀÖ½À´Ï´Ù.

±×¸®°í ÀÌ´Â ÇÑ ºí·°¿¡ 512¹ÙÀÌÆ®¶ó´Â °ÍÀ» °¡Á¤ÇÑ °è»ê ÀÌ¸ç ºí·°´ç Å©±â°¡ Ä¿Áú¼ö·Ï ±× ¿ë·®Àº ´Ã¾î³³´Ï´Ù.

LBA¸ðµå

0 ~ 268,435,456(2ÀÇ 28½Â)BlocksÀÇ ¹üÀ§¸¦ °®´Â ¼±Çü ÁÖ¼Ò¹æ½ÄÀ¸·Î ¹°¸®Àû À§Ä¡ ÁÖ¼Ò¸¦ ³ªÅ¸³»´Â ¹æ½ÄÀÔ´Ï´Ù.

±×¸®°í 1°³ÀÇ BlockÀº Åë»ó 512/1024/2048/4096Bytes ·Î ±¸¼ºµÇ¸ç º¸Åë ´ëºÎºÐÀÇ HDD´Â 512·Î ±¸¼ºµË´Ï´Ù.

±×·¯¹Ç·Î ÇϳªÀÇ BlockÀÌ 512byte¶ó°í °¡Á¤ÇÏ°í °è»êÇغ¸¸é ¾à 128GByte°¡ ÃÖ´ë ÁÖ¼Ò¸ÅÇΰø°£ÀÌ µÇ´Â ¹æ½ÄÀÔ´Ï´Ù.

Á¡Â÷ HDDÀÇ ¿ë·®ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó¼­ ÃæºÐÇÒÁÙ ¾Ë¾Ò´ø LBA ÁÖ¼Ò¿¡ »ç¿ëµÇ´Â bit °¡ ¸ðÀÚ¸£°Ô µÊ¿¡ µû¶ó¼­ ÃÖ±Ù(2008³â 4¿ù 16ÀÏ ÇöÀç ±âÁØ) ¿¡´Â ÀÌ°ÍÀ» Á»´õ ´Ã·Á 48bit address ÁöÁ¤ÇÒ¼ö ÀÖµµ·Ï È®ÀåµÇ¾úÀ¸¸ç ÀÌ°ÍÀº 281,474,976,710,656°³ÀÇ BlockÀ» ÁöÁ¤ÇÒ¼ö ÀÖ´Â ¹üÀ§·Î ºñ¾àÀûÀ¸·Î Áõ°¡ÇÏ¿´½À´Ï´Ù. ÀÌ°ÍÀº 1°³ÀÇ BlockÀÌ 512byte¶ó°í °¡Á¤ÇÏ°í °è»êÇϸé 131,072TB¿¡ ÇØ´çÇÏ´Â ¾öû³­ ÁÖ¼Ò°ø°£ÀÌ µÈ °ÍÀÔ´Ï´Ù.

ÆÄƼ¼ÇÀº ¾îµð¿¡ À§Ä¡ÇÑ °ÍÀϱî?

ÆÄƼ¼ÇÀº ÁÖ ÆÄƼ¼Ç°ú È®Àå ÆÄƼ¼ÇÀ¸·Î ³ª´µ¾î Áö´Âµ¥ ÁÖ ÆÄƼ¼ÇÀÇ °æ¿ì´Â LBA¹æ½ÄÀ¸·Î ³ªÅ¸³½´Ù¸é 0¹ø ¼½ÅÍÀ̸ç CHS¹æ½ÄÀ¸·Î ³ªÅ¸³½´Ù¸é 0/0/1 ¿¡ À§Ä¡ÇÑ°ÍÀÌ µË´Ï´Ù.

Áï, ¹°¸®ÀûÀ¸·Î °¡Àå óÀ½ºÎºÐÀÌ ÁÖ ÆÄƼ¼ÇÀÌ À§Ä¡ÇÏ´Â °÷À̸ç ÀÌ°÷À» Master Boot Record(MBR)À̶ó°íµµ ºÒ¸®¿öÁý´Ï´Ù.

µµ½º¿¡¼­ "fdisk /MBR"¸í·ÉÀº ÀÌ°÷À» ÃʱâÈ­ ÇÏ´Â ¸í·ÉÀÌ µÇ´Â °ÍÀÌ°í¿ä.

¶ÇÇÑ ÀÌ°÷¿¡´Â ÆÄƼ¼ÇÁ¤º¸¸¸ Àִ°ÍÀÌ ¾Æ´Ï°í PC°¡ ºÎÆõǸé ÀÌ°÷¿¡¼­ ºÎÆÃÄڵ带 Àоî¿Í¼­ ºÎÆÃÇÏ°Ô µË´Ï´Ù.

Áï, ¸¸¾à ÀÌ°÷ÀÌ ÀоîÁú¼ö ¾ø´Â »óÅÂ(Æı«?)°¡ µÈ´Ù¸é Çϵåµð½ºÅ©´Â ¹«¿ëÁö¹°ÀÌ µÇ¹ö¸®´Â Áß¿äÇÑ ¿µ¿ªÀÌ µÇ´Â °ÍÀÔ´Ï´Ù.

MBRÀÇ ±¸Á¶

MBRÀº 1°³ÀÇ Sector·Î º¸Åë ±¸¼ºµÇ¾îÁö´Âµ¥ ÀÌ Å©±â´Â Åë»ó 512¹ÙÀÌÆ®ÀÔ´Ï´Ù.

±×¸®°í ÀÌ 512¹ÙÀÌÆ®Áß¿¡¼­ óÀ½ 446¹ÙÀÌÆ®´Â ¿î¿µÃ¼Á¦¸¦ ÀоîµéÀ̱â À§ÇÑ Áغñ´Ü°è Äڵ尡 µé¾î ÀÖÀ¸¸ç ³ª¸ÓÁö 64¹ÙÀÌÆ®°¡ ÆÄƼ¼Ç¿¡ ´ëÇÑ Á¤º¸¸¦ ´ã¾ÆµÎ´Â Å×À̺íÀÔ´Ï´Ù.

±×¸®°í ¸¶Áö¸· 2¹ÙÀÌÆ®´Â MBRÀÌ ¸Â´ÂÁö È®ÀÎÇϱâ À§ÇÑ ¿¹¾à°ªÀ¸·Î ±â·ÏµÇ¾î ÀÖ½À´Ï´Ù.

Áï, 446 + 64 + 2 ÀÇ ±¸Á¶¸¦ °¡Áö°í ÀÖ½À´Ï´Ù.

ÆÄƼ¼Ç 1°³¸¦ ¸í½ÃÇϴµ¥´Â 16¹ÙÀÌÆ®ÀÇ ¿µ¿ªÀÌ ¼Ò¿äµÇ´Âµ¥ 64¹ÙÀÌÆ®»ÓÀÌ ¾øÀ¸´Ï±î 64 / 16 = 4 °³ÀÇ ÆÄƼ¼ÇÀÌ ³ª´µ¾î Áú¼ö ÀÖ´Â °è»êÀÌ ³ª¿É´Ï´Ù.

¿©±â¼­ Àǹ®À» °¡Áö½Ã´Â ºÐÀÌ °è½ÇÅÙµ¥ "³ª´Â ÆÄƼ¼Ç 5°³ ³ª´²¼­ ¾²´Âµ¥?" ¶ó°í »ý°¢ÇϽô ºÐÀÌ °è½Ç°Ì´Ï´Ù. ¸Â½À´Ï´Ù. 5°³°Ç 100°³°Ç ¿ë·® ³²´Âµ¥·Î ÆÄƼ¼ÇÀ» ³ª´©´Â °ÍÀÌ °¡´ÉÇÏÁö¸¸ ÀÌ°ÍÀº ÁÖÆÄƼ¼Ç¿¡¼­ ³ª´µ¾îÁø ºÎÆÄƼ¼Ç¿¡¼­ ±×·¯ÇÑ ÆÄƼ¼ÇÀÇ Áõ¼³ÀÌ µË´Ï´Ù. ¾îµð±îÁö´Â ÁÖÆÄƼ¼ÇÀÌ°Ç ºÎÆÄƼ¼ÇÀÌ°Ç ÇϳªÀÇ ¼½ÅÍ¿¡ 4°³ÀÇ ÆÄƼ¼Ç¸¸ÀÌ ±â·ÏµÇ´Â°ÍÀ» ¹Ýµå½Ã ¾Ë°í °è¼Å¾ß ÇÕ´Ï´Ù.

ºÎ ÆÄƼ¼ÇÀº ÀÌ 4°³ÀÇ ÆÄƼ¼ÇÁß¿¡ 1°³ÀÇ ÆÄƼ¼Ç¿¡ ºÎÆÄƼ¼ÇÀÇ À§Ä¡¸¦ ¸í½ÃÇÏ¿© È®ÀåµÇ´Â °³³äÀ̶ó°í º¸½Ã¸é ÀÌÇØ°¡ µÇ½Ç°Ì´Ï´Ù.

Áï, ´ÙÀ½°ú °°Àº ¸ð¾ç»õ°¡ µÉ¼ö ÀÖ½À´Ï´Ù.
#1 Linux 
#2 Windows 98 
#3 DataBackup 
#4 Extension --->>>> #1 WindowsXP 
                     #2 No used 
                     #3 Extension ->>> ... 
                     #4 No used 
ÀÌ·±½ÄÀ¸·Î ÆÄƼ¼ÇÀÇ È®Àå°³³äÀÌ Àû¿ëµË´Ï´Ù.

MBR ÆÄƼ¼ÇÁ¤º¸ Å×À̺í

À§¿¡¼­ 16¹ÙÀÌÆ®´ç 1°³ÀÇ ÆÄƼ¼ÇÀ» ¸í½ÃÇÒ¼ö ÀÖ´Ù°í ¼³¸íÇÏ¿´½À´Ï´Ù. ±×·¯¸é 16¹ÙÀÌÆ®¿¡´Â ¾î¶²°ÍÀÌ ±â¼úµÉ±î¿ä? ´ÙÀ½°ú °°½À´Ï´Ù.
OFFSET °ª ³»¿ë
00H byte boot indicator
00H non-bootable partition
80H bootable partition (one partition only but minzkn is first 80H)
01H byte beginning sector head number
02H byte beginning sector (2 high bits of cylinder)
03H byte beginning cylinder (low order bits of cylinder)
04H byte system indicator
00H unknown operating system (Empty partition)
01H FAT12
02H XENIX
04H FAT16
05H Extended partition (DOS)
06H FAT16 (32bit sector number)
0BH FAT32
0CH FAT32 (64bit sector number)
05H byte ending sector head number
06H byte ending sector (2 high bits of cylinder)
1st byte (sector) Sector offset within cylinder High order bits of cylinder
07H byte ending cylinder (low order bits of cylinder)
2nd byte (cylinder) Low order bits of cylinder
08H dword number of sectors preceding the partition
0BH dword number of sectors in the partition

ÀÌ·¯ÇÑ Á¤º¸¸¦ ÅëÇؼ­ ¿î¿µÃ¼Á¦À§Ä¡¸¦ ã¾Æ ºÎÆÃÇÏ°Ô µË´Ï´Ù.

¿©±â¼­ ¸ÇóÀ½ "boot indicator"ÀÌ ºÎºÐÀÌ 80h Àΰ¡ ±×³É 0Àΰ¡¿¡ µû¶ó¼­ ºÎÆð¡´ÉÇÑ ÆÄƼ¼ÇÀΰ¡¸¦ °áÁ¤Áþ°Ô µË´Ï´Ù.

fdisk¿¡¼­ º¸¸é Active¿Í °°Àº °³³äÀÌ°ÚÁÒ. ¾Æ¹«¸® ¿î¿µÃ¼Á¦°¡ ¼³Ä¡µÇ¾î ÀÖ´õ¶óµµ ÀÌ ºÎºÐÀÌ 80h°¡ ¾Æ´Ï¶ó¸é ºÎÆÃÀ» ½ÃµµÇÏÁö ¾Ê½À´Ï´Ù.

º¸Åë ºÎÆ®¸Å´ÏÀú´Â À̸¦ ÀÌ¿ëÇÑ ¹æ½ÄÀ» »ç¿ëÇÏ´Â °æ¿ì°¡ ¸¹½À´Ï´Ù. ¿©±â¼­ ¶Ç ¹®Á¦°¡ µÇ´Â°ÍÀÌ 1024½Ç¸°´õ¸¦ ³Ñ´Â ¿µ¿ªÀ» ¾î¶»°Ô ºÎÆÃÇÒ°ÍÀΰ¡¶ó´Â ³íÀçÀÇ ½ÃÁ¡ÀÌ ¹ß»ýÇϴµ¥ ÀÌ ºÎºÐ¿¡ ´ëÇÑ ¼³¸íÀº ³Ê¹« ¼¼ºÎÀûÀÎ ºÎºÐÀÌ¶ó¼­ Á¢µµ·Ï ÇÏ°Ú½À´Ï´Ù.

¾Æ·¡´Â Á¦ PCÀÇ MBR sector¸¦ ¿¹½Ã·Î ³ªÅ¸³»¾î º¾´Ï´Ù.
00000000 FA EB 21 01 B4 01 4C 49 | 4C 4F 16 08 D3 09 38 4B [..!...LILO....8K]
00000010 00 00 00 00 96 09 38 4B | F1 3F 24 25 81 00 80 60 [......8K.?$%...`]
00000020 1E 82 34 03 B8 C0 07 8E | D0 BC 00 08 FB 52 53 06 [..4..........RS.]
00000030 56 FC 8E D8 31 ED 60 B8 | 00 12 B3 36 CD 10 61 B0 [V...1.`....6..a.]
00000040 0D E8 66 01 B0 0A E8 61 | 01 B0 4C E8 5C 01 60 1E [..f....a..L.\.`.]
00000050 07 80 FA FE 75 02 88 F2 | BB 00 02 8A 76 1E 89 D0 [....u.......v...]
00000060 80 E4 80 30 E0 78 0A 3C | 10 73 06 F6 46 1C 40 75 [...0.x.<.s..F.@u]
00000070 2E 88 F2 66 8B 76 18 66 | 09 F6 74 23 52 B4 08 B2 [...f.v.f..t#R...]
00000080 80 53 CD 13 5B 72 57 0F | B6 CA BA 7F 00 42 66 31 [.S..[rW......Bf1]
00000090 C0 40 E8 60 00 66 3B B7 | B8 01 74 03 E2 EF 5A 53 [.@.`.f;...t...ZS]
000000A0 8A 76 1F BE 20 00 E8 DF | 00 B4 99 66 81 7F FC 4C [.v.. ......f...L]
000000B0 49 4C 4F 75 29 5E 68 80 | 08 07 31 DB E8 C9 00 75 [ILOu)^h...1....u]
000000C0 FB BE 06 00 89 F7 B9 0A | 00 B4 9A F3 A6 75 0F B0 [.............u..]
000000D0 02 AE 75 0A 06 55 B0 49 | E8 CF 00 CB B4 40 B0 20 [..u..U.I.....@. ]
000000E0 E8 C7 00 E8 B4 00 FE 4E | 00 74 07 BC E8 07 61 E9 [.......N.t....a.]
000000F0 5C FF F4 EB FD 60 55 55 | 66 50 06 53 6A 01 6A 10 [\....`UUfP.Sj.j.]
00000100 89 E6 53 F6 C6 60 74 70 | F6 C6 20 74 14 BB AA 55 [..S..`tp.. t...U]
00000110 B4 41 CD 13 72 0B 81 FB | 55 AA 75 05 F6 C1 01 75 [.A..r...U.u....u]
00000120 41 52 06 B4 08 CD 13 07 | 72 B4 51 C0 E9 06 86 E9 [AR......r.Q.....]
00000130 89 CF 59 C1 EA 08 92 40 | 49 83 E1 3F 41 F7 E1 93 [..Y....@I..?A...]
00000140 8B 44 08 8B 54 0A 39 DA | 73 92 F7 F3 39 F8 77 8C [.D..T.9.s...9.w.]
00000150 C0 E4 06 86 E0 92 F6 F1 | 08 E2 89 D1 41 5A 88 C6 [............AZ..]
00000160 EB 1C B4 42 5B BD 05 00 | 60 CD 13 73 16 4D 74 B8 [...B[...`..s.Mt.]
00000170 31 C0 CD 13 61 4D EB F0 | 66 50 59 58 88 E6 B8 01 [1...aM..fPYX....]
00000180 02 EB E1 8D 64 10 61 C3 | 66 AD 66 09 C0 74 0A 66 [....d.a.f.f..t.f]
00000190 03 46 10 E8 5F FF 80 C7 | 02 C3 C1 C0 04 E8 03 00 [.F.._...........]
000001A0 C1 C0 04 24 0F 27 04 F0 | 14 40 60 BB 07 00 B4 0E [...$.'...@`.....]
000001B0 CD 10 61 C3 00 00 00 00 | F1 3F 24 25 00 00 00 01 [..a......?$%....]
000001C0 01 00 83 FE FF FF 3F 00 | 00 00 93 29 00 04 00 FE [......?....)....]
000001D0 FF FF 83 FE FF FF D2 29 | 00 04 D2 29 00 04 00 FE [.......)...)....]
000001E0 FF FF 82 FE FF FF A4 53 | 00 08 4B 34 80 00 00 FE [.......S..K4....]
000001F0 FF FF 83 FE FF FF EF 87 | 80 08 D2 D1 EF 6B 55 AA [.............kU.]


MBR ÆÄƼ¼ÇÀÇ ¿ëµµ¸¦ ³ªÅ¸³»´Â "byte system indicator"¿¡ ´ëÇÑ ¸ñ·Ï (¸®´ª½ºÀÇ fdisk¿¡¼­ Àοë)

 0  Empty           24  NEC DOS         81  Minix / old Lin bf  Solaris        
 1  FAT12           39  Plan 9          82  Linux swap / So c1  DRDOS/sec (FAT-
 2  XENIX root      3c  PartitionMagic  83  Linux           c4  DRDOS/sec (FAT-
 3  XENIX usr       40  Venix 80286     84  OS/2 hidden C:  c6  DRDOS/sec (FAT-
 4  FAT16 <32M      41  PPC PReP Boot   85  Linux extended  c7  Syrinx         
 5  Extended        42  SFS             86  NTFS volume set da  Non-FS data    
 6  FAT16           4d  QNX4.x          87  NTFS volume set db  CP/M / CTOS / .
 7  HPFS/NTFS       4e  QNX4.x 2nd part 88  Linux plaintext de  Dell Utility   
 8  AIX             4f  QNX4.x 3rd part 8e  Linux LVM       df  BootIt         
 9  AIX bootable    50  OnTrack DM      93  Amoeba          e1  DOS access     
 a  OS/2 Boot Manag 51  OnTrack DM6 Aux 94  Amoeba BBT      e3  DOS R/O        
 b  W95 FAT32       52  CP/M            9f  BSD/OS          e4  SpeedStor      
 c  W95 FAT32 (LBA) 53  OnTrack DM6 Aux a0  IBM Thinkpad hi eb  BeOS fs        
 e  W95 FAT16 (LBA) 54  OnTrackDM6      a5  FreeBSD         ee  GPT            
 f  W95 Ext'd (LBA) 55  EZ-Drive        a6  OpenBSD         ef  EFI (FAT-12/16/
10  OPUS            56  Golden Bow      a7  NeXTSTEP        f0  Linux/PA-RISC b
11  Hidden FAT12    5c  Priam Edisk     a8  Darwin UFS      f1  SpeedStor      
12  Compaq diagnost 61  SpeedStor       a9  NetBSD          f4  SpeedStor      
14  Hidden FAT16 <3 63  GNU HURD or Sys ab  Darwin boot     f2  DOS secondary  
16  Hidden FAT16    64  Novell Netware  af  HFS / HFS+      fb  VMware VMFS    
17  Hidden HPFS/NTF 65  Novell Netware  b7  BSDI fs         fc  VMware VMKCORE 
18  AST SmartSleep  70  DiskSecure Mult b8  BSDI swap       fd  Linux raid auto
1b  Hidden W95 FAT3 75  PC/IX           bb  Boot Wizard hid fe  LANstep        
1c  Hidden W95 FAT3 80  Old Minix       be  Solaris boot    ff  BBT            
1e  Hidden W95 FAT1


MBR·Î ³ªÅ¸³¾¼ö ÀÖ´Â ¿ë·®ÀÇ ÇÑ°è

MBRÀÇ Partition ¹üÀ§ÁöÁ¤ ÇÑ°è´Â 32bit±îÁöÀ̹ǷΠ4,294,967,296°³ÀÇ Block±îÁö¸¸ ÁöÁ¤ÇÒ¼ö ÀÖÀ¸¸ç ÀÌ°ÍÀº ¾à 2TB¿ë·®±îÁö¸¸ ´Ù·ê¼ö ÀÖ´Ù´Â ÀǹÌÀÔ´Ï´Ù.

¿À´Ã³¯ 2TBÀÌ»óÀÇ HDD°¡ Ãâ½ÃµÇ°í ÀÖ°í À̸¦ È°¿ëÇÒ¼ö ÀÖµµ·Ï ÇÏ·Á¸é 2TBº¸´Ù Å« ¿ë·®À» ³ªÅ¸³¾¼ö ÀÖ´Â PartitionÁöÁ¤¹æ½ÄÀÇ Á¤ÀÇ°¡ ÇÊ¿äÇß½À´Ï´Ù.

À̸¦ À§Çؼ­ ÇöÀç °¡Àå ³Î¸® »ç¿ëµÇ¾îÁö´Â °ÍÀÌ GPT(GUID Partition Table)¹æ½ÄÀÔ´Ï´Ù.

GPT

  • Partition table header (LBA 1)
    OFFSET Å©±â ³»¿ë
    0 8Signature ("EFI PART", 45 46 49 20 50 41 52 54)
    8 4Revision (For version 1.0, the value is 00 00 01 00)
    12 4Header size (in bytes, usually 5C 00 00 00 meaning 92 bytes)
    16 4CRC32 of header (0 to header size), with this field zeroed during calculation
    20 4Reserved; must be zero
    24 8Current LBA (location of this header copy)
    32 8Backup LBA (location of the other header copy)
    40 8First usable LBA for partitions (primary partition table last LBA + 1)
    48 8Last usable LBA (secondary partition table first LBA - 1)
    56 16Disk GUID (also referred as UUID on UNIXes)
    72 8Partition entries starting LBA (always 2 in primary copy)
    80 4Number of partition entries
    84 4Size of a partition entry (usually 128)
    88 4CRC32 of partition array
    92 *Reserved; must be zeroes for the rest of the block (420 bytes for a 512-byte LBA)

  • GUID partition entry format (LBA 2–33)
    OFFSET Å©±â ³»¿ë
    0 16Partition type GUID
    16 16Unique partition GUID
    32 8First LBA (little-endian)
    40 8Last LBA (inclusive, usually odd)
    48 8 Attribute flags (e.g. bit 60 denotes read-only)
    56 72Partition name (36 UTF-16LE code units)

  • Partition attributes
    BIT ³»¿ë
    0 System partition (disk partitioning utilities must reserve the partition as is)
    60 Read-only
    62 Hidden
    63 Do not automount (i.e., do not assign drive letter)


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