Daim Master Boot Record (MBR) yog dab tsi?

Kev txhais ntawm MBR & Yuav ua li cas kho tau los yog tsis ua tiav MBRs

Lub ntsiab lus ntawm daim ntawv khau raj (feem ntau luv tshaj li MBR ) yog ib hom khau raj khaws tseg rau ntawm ib qho nyuaj disk drive los yog lwm yam khoom ntiag tug uas muaj qhov tsim nyog yuav tsum tau siv computer los pib khau raj .

Lub MBR yog tsim thaum tus tsav nyuab faib , tab sis nws tsis nyob hauv ib qho kev faib. Qhov no txhais tau tias tsis yog cov muab faib nruab nrab, xws li muaj suab thaj, tsis txhob muaj cov ntaub ntawv khaws tseg.

Cov ntawv tuav cov lus qhuab qhia yog nyob ntawm tus thawj sector ntawm lub disk. Qhov chaw nyob ntawm daim disk yog Kheej: 0, Lub taub hau: 0, Sector: 1.

Cov ntaub ntawv qhab-nees thawj coj yog feem ntau hu ua MBR . Koj tuaj yeem pom nws hu ua tus tswv khau boot sector , sector zero , master boot block , los yog tus tswv faib tshuab khau raj .

Daim Master Boot Daim Ntawv Ua Dab Tsi?

Lub ntsiab lus ntawm daim ntawv khau raj muaj peb qho loj: lub rooj faib tawm ntawm lub rooj sib hais , daim ntawv kos npe , thiab tus qhab-nees .

Ntawm no yog ib qho kev simplified version ntawm lub luag hauj lwm tus thawj coj daim ntawv khaws tseg ua thaum lub computer pib ua ntej:

  1. BIOS ua ntej zoo rau lub hom phiaj ntaus ntawv rau khau raj uas muaj cov tswv yim khau raj.
  2. Ib zaug pom, qhov MBR's boot code siv lub ntim khau raj ntawm qhov kev faib qhov ntawd los txheeb xyuas qhov twg qhov kev faib kev kaw lus yog.
  3. Ntawd qhov kev faib qhov khau boot sector ces siv los pib lub operating system .

Raws li koj tau pom, tus thawj coj daim ntawv khomob ua plays ib txoj haujlwm tseem ceeb hauv kev pib ua haujlwm. Yog tias tsis muaj qhov seem ntawm cov lus qhia yeej muaj, lub computer tsis muaj lub tswv yim li cas pib lub qhov rais los yog txhua yam kev khiav hauj lwm uas koj tab tom khiav.

Yuav ua li cas txhawm rau txhim kho Master Boot Record (MBR) Teeb Meem

Cov teeb meem nrog cov tswv yim khau raj muaj peev xwm tshwm sim rau ntau qhov laj thawj ... tej zaum muaj kev cuam tshuam los ntawm ib tus kab mob MBR, los sis tej zaum kev puas tsuaj ua tsaug rau lub cev tsis zoo. Cov tswv yim qhwv lub rooj zaum yuav raug puas ntsoog rau hauv txoj kev me me los yog tshem tawm tag nrho.

Ib qho "Tsis muaj khau raj" feem ntau qhia tias lub ntsiab lus khau daim ntawv teev tseg, tab sis cov lus yuav txawv dua li ntawm koj lub tshuab computer lossis motherboard BIOS qhov chaw tsim tshuaj.

Ib tug MBR "txhim kho" yuav tsum tau ua nyob sab nraum lub qhov rais (ua ntej nws pib) vim, tau mas, Qhov rais tsis tuaj yeem pib ...

Qee lub computer yuav sim khau raj ntawm lub plhaub tis ua ntej lub chaw tsav tsheb, qhov twg yog qhov muaj kev siab phem uas yog nyob rau ntawm lub khoob khoob khawm ntawd mam muab tso rau hauv lub cim xeeb . Hom kev cai no tuaj yeem hloov txoj cai hauv MBR thiab tiv thaiv kev khiav haujlwm ntawm qhov pib.

Yog tias koj xav tias tus kab mob no yuav yog liam rau kev qhuab qhia cov kab mob plawv, peb pom zoo kom siv lub vev xaib kev tiv thaiv kab mob vev tas rau cov kab mob ua ntej pib ua haujlwm. Cov no zoo li cov kev pabcuam kev noj kev haus hauv kev ua haujlwm tiam sis ua haujlwm txawm tias thaum lub operating system tsis haum.

MBR thiab GPT: Dab tsi & # 39; s qhov txawv?

Thaum peb tham txog MBR thiab GPT (GUID Partition Table), peb tab tom sib tham txog ob txoj kev sib txawv ntawm kev khaws cia cov ntaub ntawv qhia tawm. Koj yuav pom ib qho kev xaiv los xaiv ib qho los yog lwm qhov thaum koj nyob nruab nrab qhov tsav tsheb lossis thaum koj siv lub tshuab faib tawm disk .

GPT hloov MBR vim nws muaj tsawg dua li MBR. Piv txwv, qhov kev faib siab tshaj plaws ntawm MBR disk uas yog formatted nrog 512-byte chav faib qhov me me yog 2 TB raws li 9.3 ZB (dua 9 billion TB) uas GPT disks pub.

Tsis tas li, MBR tsuas pub plaub feem faib thiab yuav tsum muaj kev faib kev txuas ntxiv mus ua kom tuav lwm cov kev hu ua cov npe ntawm cov zajlus . Windows operating systems yuav muaj txog li 128 feem ntawm GPT tsav tsis tas yuav tsum tsim ib qho kev faib ua ntej.

Lwm txoj kev GPT outperforms MBR yog li cas yooj yim nws yog rov los ntawm kev noj nyiaj txiag. MBR disks cia cov ntaub ntawv khau raj hauv ib qhov chaw, uas yooj yim tau corrupted. GPT disks khaws cov ntaub ntawv no tib yam nkaus rau hauv ntau cov ntawv luam thoob plaws hauv lub zog tsav ua kom yooj yim dua. GPT partitioned disks thiab tuaj yeem teev cov teeb meem cia li vim tias nws tsis tu ncua cov tshev ua yuam kev.

GPT yog kev txhawb siab los ntawm UEFI , uas yog npaj los ua ib qho hloov rau BIOS.