{"id":121869,"date":"2025-02-12T14:22:12","date_gmt":"2025-02-12T12:22:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-systemd-razvivaetsya-vozmozhnost-zagruzki-sistemnyh-obrazov-po-http"},"modified":"2025-02-12T14:22:12","modified_gmt":"2025-02-12T12:22:12","slug":"dlya-systemd-razvivaetsya-vozmozhnost-zagruzki-sistemnyh-obrazov-po-http","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-systemd-razvivaetsya-vozmozhnost-zagruzki-sistemnyh-obrazov-po-http","title":{"rendered":"Pro systemd se vyv\u00edj\u00ed mo\u017enost na\u010d\u00edt\u00e1n\u00ed syst\u00e9mov\u00fdch obraz\u016f p\u0159es HTTP.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Lennart Poettering navrhl zahrnout do syst\u00e9mov\u00e9ho spr\u00e1vce systemd zm\u011bnu, kter\u00e1 umo\u017en\u00ed zav\u00e1d\u011bt syst\u00e9m s vyu\u017eit\u00edm obraz\u016f ko\u0159enov\u00e9ho souborov\u00e9ho syst\u00e9mu z\u00edskan\u00e9ho z extern\u00edho hostitele pomoc\u00ed protokolu HTTP. Zm\u011bna spo\u010d\u00edv\u00e1 v roz\u0161\u00ed\u0159en\u00ed systemd o mo\u017enost nejen stahovat diskov\u00fd obraz p\u0159es HTTP v po\u010d\u00e1te\u010dn\u00ed f\u00e1zi zaveden\u00ed, ale tak\u00e9 rozbalit sta\u017een\u00fd obraz, propojit ho s blokov\u00fdm za\u0159\u00edzen\u00edm v re\u017eimu loopback, namontovat blokov\u00e9 za\u0159\u00edzen\u00ed jako \/sysroot a zav\u00e9st syst\u00e9m z n\u011bj. <\/p>\n

Podpora stahov\u00e1n\u00ed diskov\u00fdch obraz\u016f b\u011bhem zav\u00e1d\u011bn\u00ed syst\u00e9mu pomoc\u00ed systemd-import-generator je ji\u017e zahrnuta ve verzi systemd 257. Ostatn\u00ed funkce jsou zat\u00edm v f\u00e1zi pracovn\u00edho prototypu, kter\u00fd vy\u017eaduje dal\u0161\u00ed \u00fapravy. V implementaci zat\u00edm nen\u00ed podporov\u00e1n pln\u00fd cyklus zav\u00e1d\u011bn\u00ed, ale do budoucna se pl\u00e1nuje roz\u0161\u00ed\u0159it funk\u010dnost na zav\u00e1d\u011bn\u00ed pomoc\u00ed UEFI HTTP Boot univerz\u00e1ln\u00edch obraz\u016f j\u00e1dra UKI (Unified Kernel Image), kter\u00e9 spojuj\u00ed v jednom souboru zav\u00e1d\u011b\u010d pro UEFI (UEFI boot stub), obraz j\u00e1dra Linuxu a nahr\u00e1van\u00e9 syst\u00e9mov\u00e9 prost\u0159ed\u00ed initrd. <\/p>\n

URL pro sta\u017een\u00ed syst\u00e9mov\u00e9ho obrazu bude vypo\u010d\u00edt\u00e1n na z\u00e1klad\u011b URL zadan\u00e9ho pro EFI-obraz v nastaven\u00ed UEFI HTTP Boot (nap\u0159\u00edklad p\u0159i spu\u0161t\u011bn\u00ed p\u0159es EFI HTTP Boot \u201ehttp:\/\/example.com\/somedir\/myimage.efi\u201c, p\u0159\u00edtomn\u00fd v UKI initrd-zpracovatel st\u00e1hne obraz rootfs jako \u201ehttp:\/\/example.com\/somedir\/myimage.raw.xz\u201c). V budoucnu se pl\u00e1nuje krom\u011b HTTP p\u0159idat jako transportn\u00ed prost\u0159edek podporu technologie NVMe-over-TCP, kter\u00e1 umo\u017e\u0148uje p\u0159istupovat k NVMe-\u00falo\u017ei\u0161t\u00edm p\u0159es s\u00ed\u0165 (NVM Express over Fabrics) pomoc\u00ed protokolu TCP. <\/p>\n

P\u0159edpokl\u00e1d\u00e1 se, \u017ee spou\u0161t\u011bn\u00ed z obraz\u016f z\u00edskan\u00fdch z extern\u00edho hostitele zjednodu\u0161\u00ed organizaci testov\u00e1n\u00ed modern\u00edch nem\u011bnn\u00fdch (\u201eimmutable\u201c) opera\u010dn\u00edch syst\u00e9m\u016f na skute\u010dn\u00e9m hardwaru. V\u00fdvoj\u00e1\u0159 m\u016f\u017ee na sv\u00e9m po\u010d\u00edta\u010di vytvo\u0159it obraz se syst\u00e9mov\u00fdm prost\u0159ed\u00edm pomoc\u00ed n\u00e1stroje mkosi a zp\u0159\u00edstupnit jej p\u0159es HTTP p\u0159\u00edkazem \u201emkosi -f serve\u201c. Na po\u010d\u00edta\u010di, na kter\u00e9m je t\u0159eba otestovat fungov\u00e1n\u00ed syst\u00e9mu, sta\u010d\u00ed povolit EFI boot p\u0159es HTTP a p\u0159idat URL stahovan\u00e9ho obrazu p\u0159\u00edkazem: kernel-bootcfg \u2014add-uri=http:\/\/192.168.47.11:8081\/image.efi \u2014title=testloop \u2014boot-order=0 <\/p>\n

Pot\u00e9 m\u016f\u017eete jednodu\u0161e restartovat po\u010d\u00edta\u010d a ten na\u010dte standardn\u00ed obraz j\u00e1dra UKI, kter\u00fd n\u00e1sledn\u011b na\u010dte p\u0159ipraven\u00fd v\u00fdvoj\u00e1\u0159em diskov\u00fd obraz s ko\u0159enov\u00fdm FS. P\u0159ed deaktivac\u00ed EFI bootov\u00e1n\u00ed p\u0159es HTTP bude ka\u017ed\u00fd n\u00e1sleduj\u00edc\u00ed restart po\u010d\u00edta\u010de znamenat na\u010dten\u00ed \u010derstv\u00e9ho syst\u00e9mov\u00e9ho obrazu. P\u0159i tomto testov\u00e1n\u00ed nejsou ovlivn\u011bny m\u00edstn\u00ed disky.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041b\u0435\u043d\u043d\u0430\u0440\u0442 \u041f\u043e\u0442\u0442\u0435\u0440\u0438\u043d\u0433 (Lennart Poettering) \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0439 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440 systemd \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043e\u0431\u0440\u0430\u0437\u0430 \u043a\u043e\u0440\u043d\u0435\u0432\u043e\u0439 \u0424\u0421, \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c\u043e\u0433\u043e c \u0432\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u0445\u043e\u0441\u0442\u0430 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 HTTP. 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