Isifundo: IiNkqubo zeFayile eLoop

Yintoni inkqubo yefayile yeluphu?

I-Gnu / Linux (kwaye uninzi lweenkqubo ze-unix) zineendlela ezivumela ukunyusa ifayile (ebifomathiwe ngaphambili) ngokungathi yidiski enzima, ihlala ingekho itafile yokwahlulahlula. Lo mzobo wentloko (owenziwe ndim) ucacisa indlela esebenza ngayo le ndlela.

** Ayibonisi ngokupheleleyo ukusebenza.

Ukusetyenziswa kweefayile zeluphu

Iifayile ze-1- Mount.iso

Iifayile ze ISO 9960 (eziqheleke kakhulu kwiiCD) okanye I-UDF (exhaphake kakhulu kwiiDVD). Ukuyinyusa, siya kusebenzisa intaba yomyalelo.

mkdir iso # yenza umkhombandlela chmod -R 666 iso # unike bonke abasebenzisi bafunde imvume yokubeka umfanekiso.iso iso / # beka umfanekiso weso (ufuna ingcambu)

Umda onawo kukuba, ngenxa yezizathu ezicacileyo, zombini iinkqubo zefayile zifundwa kuphela.

2- funda kuphela ii-squashfs

Masithi sinefolda yemifanekiso kunye / okanye iividiyo ezilungelelaniswe ngokonyaka othathwe ngawo. Ngokucacileyo, akunakulindeleka ukuba sifuna ukuguqula idatha equlathe iifolda zeminyaka edlulileyo. Yilapho i-Squashfs ingena khona. I-squashfs yinkqubo yeefayile ecinezelweyo yokufunda kuphela, ngoko wakube umfanekiso wenziwe, ngekhe sikwazi ukuguqula idatha ngaphakathi.

Ke, ayisiyiyo kuphela siza konga isixa esikhulu sendawo, kodwa kuya kubakho nefuthe elibi lokuba ukufundwa kweefayile kuya kukhawuleza, ngokufunda iifayile ezincinci, kuba kule mihla ukucinywa kwefayile ngumzamo omncinci kwii-CPU ezininzi.

Ukushiya ii-preambles, ukwenza umfanekiso we-squashfs kufuneka sisebenzise i-mksquashfs command, ene-syntax elula:

mksquashfs directorio 1 [directorio 2 directorio 3...] imagen.sqsfs -comp [algoritmo de compresión] -b [tamaño del bloque ]

Nanku umzekelo osebenzayo:

mksquashfs fotos-2009 fotos-2010 fotos-2011 fotos-2012 fotos-2013 fotos_2009-2013.sqsfs -comp xz -bs 1M

Ewe, ialgorithm ekhethiweyo yi-xz kuba yiyo leyo uxinzelelo oluphezulu unikezelo (lwezo zikhoyo), ngelixa ubungakanani bebhloko obukhethiweyo ubuninzi. Intoni ivumela iziphumo zoxinzelelo ezingcono (ngokungagqibekanga zii-64KiB).

Ngoku kufanelekile ukuyinyusa ngokulula;

mount fotos_2009-2013.sqsfs fotos_2009-2013/

Emva kokujonga ukuba yonke into ichanekile, singazicima iifayile zoqobo okanye sishiye ifayile njenge yogcino.

Kwimeko apho sifuna ukuba inyuswe xa i-OS iqala, kufuneka songeze umgca wale ndlela ku / etc / fstab:

/dir/loop.sqsh /dir/mountdir squashfs ro,defaults 0 0

Ngoku, kwenzeka ntoni xa sifuna ukongeza okanye ukucima iifayile, okanye sikhuphe nje la magqabantshintshi? Ewe, sinomyalelo wokuyalela unsquashfs.

unsquashfs [opciones] snapshot.sqfs [Directorios o archivos que extraer]

Ngokuzenzekelayo iyakusebenzisa "squashfs-root" njengomkhombandlela wokukhupha. inokutshintshwa ngo -d ukhetho

3- «Ukutshintsha okungxamisekileyo»

Khawufane ucinge ukuba nangasiphi na isizathu (ubusika, ukudityaniswa okukhulu ...) ufuna utshintsho olongezelelekileyo. Kulapho kungena khona ifayile ye-loop, inyathelo lokuqala kukwenza ifayile engenanto yesayizi ethile, ngobukhulu bebhloko, senza oku ngomyalelo dd:

dd if=/dev/zero of=loop bs=1M count=512

Kule meko, ibhloko enye yi-MiB kwaye ubungakanani befayile yi-512MiB. Akunyanzelekanga ukuba kubenjalo.

Senza kwaye sisebenzise ukutshintsha ngalo myalelo

mkswap loop && swapon loop

Gcina ukhumbula ukuba ukusebenza kwefayile yeluphu kuhlala kungaphantsi kunokwokwenyani.

4-yenza le nto uyifunayo

Le yeminye yemizekelo ebalaseleyo, zive ukhululekile ukuzama i-chroots, inkqubo ye-encryption, ii-loops ezihleliweyo… Amathuba akho awanamda. Kodwa lumka ngemiyalelo oyisebenzisayo, cinga ngononophelo ngaphambi kokucinezela ukungena.

Amakhonkco enzala

• Isikwashfs wikipedia
• Indoda mksquashfs
• Umntu ongenanto
• iso 9960 wikipedia
• udf wikipedia
• vfs wikipedia
• Uhambo lwe-Wikipedia