{"id":100477,"date":"2021-06-09T10:22:59","date_gmt":"2021-06-09T08:22:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-zagruzochnogo-menedzhera-gnu-grub-2-06"},"modified":"2021-06-09T10:22:59","modified_gmt":"2021-06-09T08:22:59","slug":"reliz-zagruzochnogo-menedzhera-gnu-grub-2-06","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/reliz-zagruzochnogo-menedzhera-gnu-grub-2-06","title":{"rendered":"Rilascio del bootloader GNU GRUB 2.06","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo due anni di sviluppo \u00e8 stato presentato il rilascio stabile del gestore di avvio modulare multi-piattaforma GNU GRUB 2.06 (GRand Unified Bootloader). GRUB supporta un'ampia gamma di piattaforme, tra cui PC standard con BIOS, piattaforme IEEE-1275 (hardware basato su PowerPC\/Sparc64), sistemi EFI, RISC-V, hardware basato su processori MIPS compatibili con Loongson 2E, sistemi Itanium, ARM, ARM64 e ARCS (SGI), dispositivi che utilizzano il pacchetto libero CoreBoot.    <\/p>\n<p>Novit\u00e0 principali:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stato aggiunto il supporto per il meccanismo SBAT (UEFI Secure Boot Advanced Targeting), che affronta i problemi di revoca dei certificati per i bootloader per UEFI Secure Boot. SBAT implica l'aggiunta di nuovi metadati, che sono firmati digitalmente e possono essere ulteriormente inclusi nelle liste di componenti consentiti o vietati per UEFI Secure Boot. I metadati specificati consentono di manipolare i numeri di versione dei componenti in caso di revoca senza la necessit\u00e0 di rigenerare le chiavi per Secure Boot e senza creare nuove firme.\n<li class=\"l\"> \u00c8 stato aggiunto il supporto per il formato di crittografia dei dischi LUKS2, che si distingue da LUKS1 per un sistema di gestione delle chiavi semplificato, la possibilit\u00e0 di utilizzare settori di grandi dimensioni (4096 invece di 512, che riduce il carico durante la decrittazione), l'uso di identificatori simbolici delle partizioni e mezzi di backup dei metadati con la possibilit\u00e0 di recupero automatico da una copia in caso di danno.\n<li class=\"l\"> \u00c8 stata cessata la supporto per brevi gap MBR (l'area tra MBR e l'inizio della partizione disco, utilizzata in GRUB per memorizzare parte del bootloader che non pu\u00f2 essere contenuta nel settore MBR).\n<li class=\"l\"> \u00c8 stato aggiunto il supporto per i moduli XSM (Xen Security Modules), che consentono di definire ulteriori limitazioni e autorit\u00e0 per l'hypervisor Xen, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/vps\/\"   title=\"macchine virtuali\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2061\">macchine virtuali<\/a> e le risorse connesse.\n<li class=\"l\"> \u00c8 stato implementato un meccanismo di lockdown, simile a un insieme di restrizioni omologhe nel kernel Linux. Il lockdown blocca possibili vie di bypass di UEFI Secure Boot, ad esempio, vietando l'accesso a alcune interfacce ACPI e registri MSR del CPU, limitando l'uso del DMA per i dispositivi PCI, bloccando l'importazione di codice ACPI da variabili EFI, e vietando la manipolazione delle porte di input\/output.\n<li class=\"l\"> Per impostazione predefinita, l'utilit\u00e0 os-prober, che trova le partizioni di avvio di altri sistemi operativi e le aggiunge al menu di avvio, \u00e8 disabilitata.\n<li class=\"l\"> Sono stati retro-portati patch preparati da vari distribuzioni Linux.\n<li class=\"l\"> Sono state risolte le vulnerabilit\u00e0 BootHole e BootHole2.\n<li class=\"l\"> \u00c8 stata realizzata la possibilit\u00e0 di assemblaggio utilizzando GCC 10 e Clang 10.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55301\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0443\u0445 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0440\u0435\u043b\u0438\u0437 \u043c\u043e\u0434\u0443\u043b\u044c\u043d\u043e\u0433\u043e \u043c\u043d\u043e\u0433\u043e\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 GNU GRUB 2.06 (GRand Unified Bootloader). GRUB \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0448\u0438\u0440\u043e\u043a\u0438\u0439 \u0441\u043f\u0435\u043a\u0442\u0440 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043e\u0431\u044b\u0447\u043d\u044b\u0435 \u041f\u041a \u0441 BIOS, \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b IEEE-1275 (\u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430 \u0431\u0430\u0437\u0435 PowerPC\/Sparc64), EFI-\u0441\u0438\u0441\u0442\u0435\u043c\u044b, RISC-V, \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 MIPS-\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 Loongson 2E, \u0441\u0438\u0441\u0442\u0435\u043c\u044b Itanium, ARM, ARM64 \u0438 ARCS (SGI), \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0435 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u044b\u0439 \u043f\u0430\u043a\u0435\u0442 CoreBoot. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100477","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0443\u0445 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 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