Bohato ba pele ba ho kenya boot ke eng
Context:Li-bootloader li ka tobana le lithibelo tse ikhethang, haholoholo ka boholo; ka mohlala, ho IBM PC ea pejana le tse lumellanang, lekala la boot le lokela ho sebetsa feela ho 32 KiB (hamorao le phutholohe ho 64 KiB) ea memori ea sistimi mme le sebelise feela litaelo tse tšehelitsoeng ke li-processor tsa mantlha tsa 8088/8086. Mokhahlelo oa pele oa PC boot loaders (FSBL, pele-mohato oa boot loader) sebakeng disks tsitsitseng le kganna ntshuwang lokela ho lumellane le ka pele 446 dikotwana tsa Master Boot rekoto e le hore a tlohele kamoreng bakeng sa ya kamehla 64-baiti dia tafole le dikenyelletso tse 'nè dia le tse peli-baiti dia tshaeno, e leng BIOS hloka bakeng sa e loketseng ea boot loader <unk> kapa esita le ka tlaase ho moo, ha ditshebetso tse ding tsa tlatsetso joaloka dikenyelletso tse fetang tse 'nè dia (ho fihlela ho 16 le 16 dikenyelletso e mong le), e tiske tshaeno (6 dikenyelletso), e tiske timestamp (6 dikenyelletso), e tsoetseng pele Active Partition (18 dikenyelletso) kapa khethehileng multi-boot loaders lokela ho tšehetsoa hammoho ka bang libakeng. Ka floppy le superfloppy bophahamo ba modumo dia boot direkoto tsa, ho fihlela ho 59 dikotwana tse ba ne ba lula bakeng sa atoloswa BIOS paramethara le literata FAT12 le FAT16 ho tloha DOS 4.0, ha a ntse a FAT32 EBPB hlahiswa le DOS 7.1 hloka esita le 87 dikotwana tse, ba siea feela 423 dikotwana bakeng sa boot loader ha a nka e le boholo ba lefapha la 512 dikotwana tse. Ka lebaka leo, ka tloaelo li-sector tsa Microsoft boot li behile lithibelo tse itseng ts'ebetsong ea boot, mohlala, faele ea boot e ne e tlameha ho ba sebakeng se sa fetoheng bukeng ea motso ea sistimi ea faele mme e bolokoe e le likarolo tse latellanang, maemo a hlokomeloang ke taelo ea SYS mme a phutholohile hanyane liphetolelong tsa morao-rao tsa DOS.Moqapi oa boot o ile a khona ho kenya likarolo tse tharo tsa pele tsa faele mohopolong, o ileng oa etsahala ho ba le bootloader e 'ngoe e kentsoeng e khonang ho kenya file e setseng mohopolong.Ha Microsoft e eketsa tšehetso ea LBA le FAT32, ba bile ba fetela ho bootloader e fihlelang likarolo tse peli tsa' mele mme ba sebelisa litaelo tsa 386 ka mabaka a boholo. Ka nako e ts'oanang barekisi ba bang ba ile ba khona ho hatella ts'ebetso e ngata haholo lefapheng le le leng la boot ntle le ho fokotsa lithibelo tsa mantlha mohopolong o fumanehang feela (32 KiB) le ts'ehetso ea processor (8088/8086). Ka mohlala, DR-DOS boot sectors ba khona ho fumana faele ea boot ho FAT12, FAT16 le FAT32 file system, le ho e kenya ka memori ka botlalo ka CHS kapa LBA, leha faele e sa bolokoa sebakeng se tsitsitseng le makaleng a latellanang.  BIOS le UEFI ha li laole feela sistimi e sebetsang ho tsoa sesebelisoa se sa tsitsang, hape li qala lisebelisoa tsa sistimi bakeng sa sistimi e sebetsang.  Mehlala ea li-bootloader tsa mohato oa pele e kenyelletsa BIOS, coreboot, Libreboot le Das U-Boot.
Bohato ba pele ba bootloader (FSBL) ke mohato oa pele oa boot bakeng sa HPS. Ka FPGA phetolo Pele mokgwa wa, le SDM extracts le laela le FSBL ka ka-setshwantsho RAM ea HPS. SDM lokolla HPS ho tloha reset ka mor'a FPGA e kene user mode. Ka mor'a HPS tsoa reset, e sebelisa FSBL hardware handoff faele ho hloma lioache, HPS inehetseng I / O, le peripherals. Ka tloaelo, FSBL e ntan'o kenya SSBL ho HPS SDRAM ebe e fetisetsa taolo ho SSBL.