Cov txheej txheem muab faib tawm tswv yim yog ib qho kev tivthaiv kabmob khau cov ntaub ntawv / sector uas muaj qhov kev piav qhia ntawm cov kev faib tawm hauv lub disk drive , zoo li lawv cov hom thiab ntau thiab tsawg. Lub tswv yim faib cov lus sib dho nrog lub npe kos thiab lub ntsiab lus khau raj rau daim ntawv khau raj.
Vim yog qhov loj (64 bytes) ntawm cov lus faib cov lus, qhov siab tshaj plaws ntawm plaub feem (16 bytes txhua) yuav raug txhais los ntawm ib qho nyuaj tsav.
Txawm li cas los xij, ntxiv cov kev faib tawm tau los ntawm txhais txog ib qho ntawm cov kev faib tawm ntawm sab nrauv raws li kev faib kev faib tawm thiab tom qab ntawd ntxiv cov ntsiab lus ntawm cov logic hauv qhov muab faib ua ntxiv.
Lus Cim: Cov cuab yeej faib dawb disk yog ib txoj hauv kev yooj yim rau kev tswj cov khoom nruab nrab, kos cov seem "Active," thiab ntau dua.
Lwm Cov Npe rau Chav Master Part
Lub tswv yim faib cov lus qhia yog qee zaum xa mus rau kev faib cov lus qhia los yog kev faib daim ntawv qhia, los sis txawm tias yog MPT.
Tus Txheej Txheem Lub Tsev Kawm Ntawv thiab Chaw
Cov ntawv tuav cov lus qhia muaj xws li 446 bytes ntawm cov cai, ua raws li cov lus faib nrog 64 bytes, thiab ob tug bytes tseg rau daim ntawv kos npe.
Ntawm no yog cov haujlwm tshwj xeeb ntawm txhua 16 bytes ntawm ib lub rooj faib kev faib:
| Loj (Bytes) | Kev piav qhia |
| 1 | Qhov no muaj cov ntawv khau raj |
| 1 | Pib taub hau |
| 1 | Pib sector (thawj rau khoom) thiab pib lub tog raj kheej (ntau dua ob qho khoom) |
| 1 | This byte tuav cov khoom me me yim ntawm tus pib lub tog raj kheej |
| 1 | Qhov no muaj qhov muab faib hom |
| 1 | Xaus lub taub hau |
| 1 | Ending sector (thawj rau khoom) thiab xaus lub tog raj kheej (ntau dua ob qho khoom) |
| 1 | Qhov chaw byte tuav cov khoom me me yim ntawm qhov kawg ntawm lub tog raj kheej |
| 4 | Ua sector ntawm cov kev faib |
| 4 | Cov naj npawb ntawm cov nplais hauv kev faib |
Daim ntawv khau raj yog tshwj xeeb tshaj yog thaum siv ntau tshaj ib qhov kev khiav hauj lwm uas tau nruab rau hauv lub zog tsav tsheb. Vim tias muaj ntau dua ib qho kev faib tawm, cov ntawv khau raj cia koj xaiv uas OS rau khau raj .
Txawm li cas los xij, cov lus faib tawm ib txwm ua raws nraim ntawm ib qho kev faib uas ua ib qho "Active" uas tau txais los yog tsis muaj lwm txoj kev xaiv.
Cov lus ntawm qhov muab faib seem ntawm cov lus muab faib yog hais txog cov ntaub ntawv tso rau ntawm qhov kev faib, qhov chaw 06 lossis 0E muab faib ID txhais tau hais tias FAT , 0B lossis 0C txhais FAT32, thiab 07 txhais tau hais tias NTFS lossis OS / 2 HPFS.
Nrog ib txoj kev faib uas yog 512 bytes rau txhua lub sector, koj yuav tsum muab cov npaug ntawm 512 kom tag nrho cov bytes ntawm qhov muab faib tag nrho. Tias tus lej no ces muab faib rau 1,024 kom tau tus naj npawb rau hauv kilobytes, thiab tom qab ntawd dua rau megabytes, thiab ntxiv rau gigabytes, yog tias xav tau.
Tom qab cov lus qhia thawj zaug, qhov offset 1BE ntawm MBR, lwm cov rooj sib faib muab faib rau qhov thib ob, thib peb, thiab thib plaub muab faib, yog 1CE, 1DE, thiab 1EE:
| Offset | Ntev (Bytes) | Kev piav qhia | |
| Hex | Decimal | ||
| 1BE - 1CD | 446-461 | 16 | Koom Haum Me Nyuam Yaus 1 |
| 1CE-1DD | 462-477 | 16 | Koom Haum Me Nyuam Yaus 2 |
| 1DE-1ED | 478-493 | 16 | Koom Haum Me Nyuam Me 3 |
| 1EE-1FD | 494-509 | 16 | Koom Haum Me Nyuam Qib 4 |
Koj tuaj yeem nyeem daim ntawv tso cai hex ntawm cov lus faib cov lus nrog cov cuab yeej xws li wxHexEditor thiab Active @ Disk Editor.