{"id":98045,"date":"2020-10-23T20:42:30","date_gmt":"2020-10-23T18:42:30","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/zavodim-gnu-linux-na-arm-plate-s-nulya-na-primere-kali-i-imx-6"},"modified":"2020-11-18T00:58:48","modified_gmt":"2020-11-17T22:58:48","slug":"zavodim-gnu-linux-na-arm-plate-s-nulya-na-primere-kali-i-imx-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/zavodim-gnu-linux-na-arm-plate-s-nulya-na-primere-kali-i-imx-6","title":{"rendered":"Sp\u00fa\u0161\u0165ame GNU\/Linux na ARM doske od nuly (na pr\u00edklade Kali a iMX.6)","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

tl;dr<\/b>: vytv\u00e1ram obraz Kali Linux pre ARM po\u010d\u00edta\u010d, v programe debootstrap<\/code>, linux <\/code>a u-boot<\/code>.<\/p>\n

\"Sp\u00fa\u0161\u0165ame<\/a><\/noindex><\/p>\n

Ak ste kupovali nejak\u00fd menej popul\u00e1rny jednoplatov\u00fd po\u010d\u00edta\u010d, mohli ste sa stretn\u00fa\u0165 s absenciou obrazu v\u00e1\u0161ho ob\u013e\u00faben\u00e9ho distribu\u010dn\u00e9ho syst\u00e9mu. Pribli\u017ene to ist\u00e9 sa stalo aj s pl\u00e1novan\u00fdm Flipper One<\/a><\/noindex>. Kali Linux pre IMX6 jednoducho neexistuje (pripravujem), tak\u017ee mus\u00edm zbiera\u0165 s\u00e1m.<\/a><\/noindex><\/p>\n

Proces bootovania je dos\u0165 jednoduch\u00fd:<\/b><\/p>\n

    \n
  1. Hardv\u00e9r sa inicializuje.<\/li>\n
  2. Z ur\u010ditej oblasti na pam\u00e4\u0165ovom m\u00e9diu (SD-karta\/eMMC\/etc) sa na\u010d\u00edta a vykon\u00e1 bootloader.<\/li>\n
  3. Bootloader h\u013ead\u00e1 jadro opera\u010dn\u00e9ho syst\u00e9mu a na\u010d\u00edta ho do ur\u010ditej oblasti pam\u00e4te a vykon\u00e1va ho.<\/li>\n
  4. Jadro na\u010d\u00edta cel\u00fd zvy\u0161ok opera\u010dn\u00e9ho syst\u00e9mu.<\/li>\n<\/ol>\n

    \nPre moju \u00falohu sta\u010d\u00ed tak\u00e1to \u00farove\u0148 detailov, podrobnosti si m\u00f4\u017eete pre\u010d\u00edta\u0165 v inom \u010dl\u00e1nku<\/a><\/noindex>. Uveden\u00e9 vy\u0161\u0161ie \"ur\u010dit\u00e9\" oblasti sa l\u00ed\u0161ia od dosky k doske, \u010do sp\u00f4sobuje niektor\u00e9 \u0165a\u017ekosti s in\u0161tal\u00e1ciou. Na\u010d\u00edtanie serverov\u00fdch ARM platforiem sa sna\u017e\u00ed \u0161tandardizova\u0165<\/a><\/noindex> pomocou UEFI, ale k\u00fdm to nie je dostupn\u00e9 pre v\u0161etk\u00fdch, bude potrebn\u00e9 v\u0161etko zostavi\u0165 osobitne.<\/p>\n

    Zostavenie kore\u0148ov\u00e9ho s\u00faborov\u00e9ho syst\u00e9mu<\/h3>\n

    \nNajprv je potrebn\u00e9 pripravi\u0165 oddiely. Das U-Boot podporuje r\u00f4zne s\u00faborov\u00e9 syst\u00e9my, zvolil som FAT32 pre \/boot<\/code> a ext3 pre kore\u0148, je to \u0161tandardn\u00e9 rozdelenie obrazov pre Kali na ARM. Pou\u017eijem GNU Parted, ale m\u00f4\u017eete urobi\u0165 to ist\u00e9 viac zn\u00e1my fdisk<\/code>. Tie\u017e budete potrebova\u0165 dosfstools<\/code> a e2fsprogs<\/code> na vytvorenie s\u00faborov\u00e9ho syst\u00e9mu: apt install parted dosfstools e2fsprogs<\/code>.<\/p>\n

    Rozde\u013eujeme SD kartu:<\/b><\/p>\n

      \n
    1. Ozna\u010dujeme SD kartu ako pou\u017e\u00edvaj\u00facu MBR rozdelenie: parted -s \/dev\/mmcblk0 mklabel msdos<\/code><\/li>\n
    2. Vytv\u00e1rame oddiel pre \/boot<\/code> na 128 megabajtov: parted -s \/dev\/mmcblk0 mkpart primary fat32 1MiB 128MiB<\/code>. Prv\u00fd presko\u010den\u00fd megabajt je potrebn\u00e9 necha\u0165 pod samotn\u00fdm rozdelen\u00edm a pod bootloaderom.<\/li>\n
    3. Vytv\u00e1rame kore\u0148ov\u00fd FS na cel\u00fa zost\u00e1vaj\u00facu kapacitu: parted -s \/dev\/mmcblk0 mkpart primary ext4 128MiB 100%<\/code><\/li>\n
    4. Ak sa n\u00e1hodou nevytvorili alebo nezmenili s\u00fabory oddielov, mus\u00edte vykona\u0165 `partprobe`, potom sa tabu\u013eka oddielov pre\u010d\u00edta znova.<\/li>\n
    5. Vytv\u00e1rame s\u00faborov\u00fd syst\u00e9m bootovacieho oddielu s ozna\u010den\u00edm BOOT<\/code>: mkfs.vfat -n BOOT -F 32 -v \/dev\/mmcblk0p1<\/code><\/li>\n
    6. Vytv\u00e1rame kore\u0148ov\u00fd FS s ozna\u010den\u00edm ROOTFS<\/code>: mkfs.ext3 -L ROOTFS \/dev\/mmcblk0p2<\/code><\/li>\n<\/ol>\n

      \nSkvele, teraz ju m\u00f4\u017eeme naplni\u0165. Na to budeme potrebova\u0165 navy\u0161e debootstrap<\/code>, n\u00e1stroj na vytv\u00e1ranie kore\u0148ov\u00fdch FS Debian podobn\u00fdch opera\u010dn\u00fdch syst\u00e9mov: apt install debootstrap<\/code>.<\/p>\n

      Zbierame FS:<\/b><\/p>\n

        \n
      1. Pripojujeme oddiel do \/mnt\/<\/code> (pou\u017eite pre seba pohodlnej\u0161iu mont\u00e1\u017enu bod): mount \/dev\/mmcblk0p2 \/mnt<\/code><\/li>\n
      2. Vlastne vypl\u0148ujeme s\u00faborov\u00fd syst\u00e9m: debootstrap --foreign --include=qemu-user-static --arch armhf kali-rolling \/mnt\/ http:\/\/http.kali.org\/kali<\/code>. Parameter --include<\/code> ozna\u010duje dodato\u010dne nain\u0161talova\u0165 niektor\u00e9 bal\u00edky, uviedol som staticky zostaven\u00fd emul\u00e1tor QEMU. Umo\u017e\u0148uje vykon\u00e1va\u0165 chroot<\/code> v ARM prostred\u00ed. Zmysel ostatn\u00fdch mo\u017enost\u00ed si m\u00f4\u017eete pozrie\u0165 v man debootstrap<\/code>. Nezabudnite, \u017ee nie ka\u017ed\u00fd ARM board podporuje architekt\u00faru armhf<\/code>.<\/li>\n
      3. Vzh\u013eadom na rozdiely v architekt\u00farach debootstrap<\/code> sa vykon\u00e1va v dvoch stup\u0148och, druh\u00fd sa vykon\u00e1va takto: chroot \/mnt\/ \/debootstrap\/debootstrap --second-stage<\/code><\/li>\n
      4. Teraz sa potrebujeme chrootova\u0165: chroot \/mnt \/bin\/bash<\/code><\/li>\n
      5. Vypl\u0148ujeme \/etc\/hosts<\/code> a \/etc\/hostname<\/code> cie\u013eov\u00fd FS. Vypl\u0148te pod\u013ea obsahu na va\u0161om lok\u00e1lnom po\u010d\u00edta\u010di, nezabudnite iba vymeni\u0165 n\u00e1zov hostite\u013ea.<\/li>\n
      6. M\u00f4\u017eete doladi\u0165 v\u0161etko ostatn\u00e9. V pr\u00edpade potreby doin\u0161talujem locales<\/code> (kl\u00fa\u010de repozit\u00e1ra), nastav\u00edm lokality a \u010dasov\u00e9 p\u00e1smo (dpkg-reconfigure locales tzdata<\/code>). Nezabudnite nastavi\u0165 heslo pr\u00edkazom passwd<\/code>.<\/li>\n
      7. Nastavujeme heslo pre root<\/code> pr\u00edkazom passwd<\/code>.<\/li>\n
      8. Pr\u00edpravy obrazu pre m\u0148a kon\u010dia naplnen\u00edm \/etc\/fstab<\/code> vn\u00fatri \/mnt\/<\/code>. <\/li>\n<\/ol>\n

        \nS\u0165ahova\u0165 budem v s\u00falade s predt\u00fdm vytvoren\u00fdmi etiketami, preto bude obsah tak\u00fdto:<\/p>\n

        LABEL=ROOTFS \/ auto errors=remount-ro 0 1
        \n LABEL=BOOT \/boot auto defaults 0 0<\/p><\/blockquote>\n

        \nNakoniec m\u00f4\u017eeme namontova\u0165 zav\u00e1dzac\u00ed oddiel, ten budeme potrebova\u0165 pre jadro: `mount \/dev\/mmcblk0p1 \/mnt\/boot\/`<\/p>\n

        Zostavenie Linuxu<\/h3>\n

        \nNa zostavenie jadra (a nesk\u00f4r zav\u00e1dza\u010da) na Debian Testing je potrebn\u00e9 nain\u0161talova\u0165 \u0161tandardn\u00fa sadu z GCC, GNU Make a hlavi\u010dkov\u00fdch s\u00faborov GNU C Library pre cie\u013eov\u00fa architekt\u00faru (m\u00e1m armhf<\/code>), ako aj hlavi\u010dky OpenSSL, konzolov\u00fd kalkul\u00e1tor bc<\/code>, bison<\/code> a flex<\/code>: apt install crossbuild-essential-armhf bison flex libssl-dev bc<\/code>. Ke\u010f\u017ee zav\u00e1dza\u010d predvolene h\u013ead\u00e1 s\u00fabor zImage<\/code> na s\u00faborovom syst\u00e9me zav\u00e1dzacieho oddielu, je \u010das rozdeli\u0165 flash disk.<\/p>\n

          \n
        1. Kl\u00f3nova\u0165 jadro je pr\u00edli\u0161 zd\u013ahav\u00e9, preto jednoducho s\u0165ahujem: wget https:\/\/cdn.kernel.org\/pub\/linux\/kernel\/v5.x\/linux-5.9.1.tar.xz<\/code>. Rozbal\u00edme a prejdeme do adres\u00e1ra so zdrojov\u00fdmi k\u00f3dmi: tar -xf linux-5.9.1.tar.xz && cd linux-5.9.1<\/code><\/li>\n
        2. Konfigurujeme pred kompil\u00e1ciou: make ARCH=arm KBUILD_DEFCONFIG=imx_v6_v7_defconfig defconfig<\/code>. Konfigur\u00e1cia sa nach\u00e1dza v adres\u00e1ri arch\/arm\/configs\/<\/code>. Ak tak\u00fdto nie je, m\u00f4\u017eete sa pok\u00fasi\u0165 n\u00e1js\u0165 a stiahnu\u0165 hotov\u00fd a zada\u0165 n\u00e1zov s\u00faboru v tejto adres\u00e1ri v parametre KBUILD_DEFCONFIG<\/code>. V najhor\u0161om pr\u00edpade ihne\u010f prejdite k \u010fal\u0161iemu bodu.<\/li>\n
        3. Volite\u013ene m\u00f4\u017eete doladi\u0165 nastavenia: make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig<\/code><\/li>\n
        4. A crosskompilujeme obraz: make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-<\/code><\/li>\n
        5. Teraz m\u00f4\u017eeme skop\u00edrova\u0165 s\u00fabor s jadrom: cp arch\/arm\/boot\/zImage \/mnt\/boot\/<\/code><\/li>\n
        6. A s\u00fabory s DeviceTree (popis existuj\u00faceho hardv\u00e9ru na doske): cp arch\/arm\/boot\/dts\/*.dtb \/mnt\/boot\/<\/code><\/li>\n
        7. A doin\u0161talujte zostaven\u00e9 ako samostatn\u00e9 s\u00fabory moduly: make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- INSTALL_MOD_PATH=\/mnt\/ modules_install<\/code><\/li>\n<\/ol>\n

          \nJadro je pripraven\u00e9. M\u00f4\u017eete v\u0161etko odmontova\u0165: umount \/mnt\/boot\/ \/mnt\/<\/code><\/p>\n

          Das U-Boot<\/h2>\n

          \nKe\u010f\u017ee je bootloader interakt\u00edvny, na overenie jeho funk\u010dnosti sta\u010d\u00ed samotn\u00e1 doska, pam\u00e4\u0165ov\u00e9 zariadenie a volite\u013ene zariadenie USB-to-UART. To znamen\u00e1, \u017ee m\u00f4\u017eeme odlo\u017ei\u0165 jadro a OS na nesk\u00f4r.<\/p>\n

          Absol\u00fatna v\u00e4\u010d\u0161ina v\u00fdrobcov pon\u00faka pou\u017ei\u0165 Das U-Boot na prim\u00e1rne na\u010d\u00edtanie. Kompletn\u00e1 podpora sa zvy\u010dajne zabezpe\u010duje vo vlastnom forku, no ani v upstream nezab\u00fadaj\u00fa prispieva\u0165. V mojom pr\u00edpade je doska podporovan\u00e1 v hlavnom repo<\/a><\/noindex>, tak\u017ee fork<\/a><\/noindex> som ignoroval.<\/p>\n

          Zostavujeme samotn\u00fd bootloader:<\/p>\n

            \n
          1. Kl\u00f3\u0148te stabiln\u00fa vetvu repozit\u00e1ra: git clone https:\/\/gitlab.denx.de\/u-boot\/u-boot.git -b v2020.10<\/code><\/li>\n
          2. Prejdite do samotn\u00e9ho adres\u00e1ra: cd u-boot<\/code><\/li>\n
          3. Pripravujeme konfigur\u00e1ciu zostavenia: make mx6ull_14x14_evk_defconfig<\/code>. Toto funguje len ak je konfigur\u00e1cia v samotnom Das U-Boot, inak bude potrebn\u00e9 n\u00e1js\u0165 konfigura\u010dn\u00fd s\u00fabor v\u00fdrobcu a umiestni\u0165 ho do kore\u0148a repozit\u00e1ra do s\u00faboru .config<\/code>, alebo zostavi\u0165 in\u00fdm odpor\u00fa\u010dan\u00fdm sp\u00f4sobom v\u00fdrobcu.<\/li>\n
          4. Zostavujeme samotn\u00fd obraz bootloadera kr\u00ed\u017eov\u00fdm kompil\u00e1torom armhf<\/code>: make CROSS_COMPILE=arm-linux-gnueabihf- u-boot.imx<\/code><\/li>\n<\/ol>\n

            \nAko v\u00fdsledok dostaneme s\u00fabor u-boot.imx<\/code>, je to hotov\u00fd obraz, ktor\u00fd m\u00f4\u017eeme zap\u00edsa\u0165 na USB k\u013e\u00fa\u010d. Zap\u00ed\u0161eme na SD kartu, vynechaj\u00fac prv\u00fdch 1024 bajtov. Pre\u010do som si vybral cie\u013e u-boot.imx<\/code>? \u041f\u043e\u0447\u0435\u043c\u0443 \u043f\u0440\u043e\u043f\u0443\u0441\u0442\u0438\u043b \u0438\u043c\u0435\u043d\u043d\u043e 1024 \u0431\u0430\u0439\u0442\u0430? \u0422\u0430\u043a \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0442 \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0432 dokumen\u00e1cie<\/a><\/noindex>. Pre in\u00e9 dosky sa proces zostavenia obrazu a z\u00e1pisu m\u00f4\u017ee mierne l\u00ed\u0161i\u0165.<\/p>\n

            Hotovo, m\u00f4\u017eeme sa na\u0161tartova\u0165. Bootloader by mal ozn\u00e1mi\u0165 vlastn\u00fa verziu, niektor\u00e9 inform\u00e1cie o doske a pok\u00fasi\u0165 sa n\u00e1js\u0165 obraz jadra na oddiele. V pr\u00edpade ne\u00faspechu sa pok\u00fasi na\u010d\u00edta\u0165 zo siete. Celkovo je v\u00fdstup dos\u0165 podrobn\u00fd, m\u00f4\u017eete n\u00e1js\u0165 chybu v pr\u00edpade probl\u00e9mu.<\/p>\n

            Na z\u00e1ver<\/h2>\n

            \nVedeli ste, \u017ee \u010delo delf\u00edna nie je kostnat\u00e9? Je to doslovne tretie oko, tukov\u00e1 \u0161o\u0161ovka pre echolok\u00e1ciu!<\/p>\n

            \"Sp\u00fa\u0161\u0165ame<\/a><\/noindex><\/p>\n

            \"Sp\u00fa\u0161\u0165ame<\/a><\/noindex>
            \n
            Zdroj:             habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

            tl;dr: \u0441\u043e\u0431\u0438\u0440\u0430\u044e \u043e\u0431\u0440\u0430\u0437 Kali Linux \u0434\u043b\u044f ARM-\u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430, \u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435 debootstrap, linux \u0438 u-boot. \u0415\u0441\u043b\u0438 \u0432\u044b \u043f\u043e\u043a\u0443\u043f\u0430\u043b\u0438 \u043a\u0430\u043a\u043e\u0439-\u043d\u0438\u0431\u0443\u0434\u044c \u043d\u0435 \u043e\u0447\u0435\u043d\u044c \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u0439 \u043e\u0434\u043d\u043e\u043f\u043b\u0430\u0442\u043d\u0438\u043a, \u0442\u043e \u043c\u043e\u0433\u043b\u0438 \u0441\u0442\u043e\u043b\u043a\u043d\u0443\u0442\u044c\u0441\u044f \u0441 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0434\u043b\u044f \u043d\u0435\u0433\u043e \u043e\u0431\u0440\u0430\u0437\u0430 \u043b\u044e\u0431\u0438\u043c\u043e\u0433\u043e \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430. \u041f\u0440\u0438\u0431\u043b\u0438\u0437\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0442\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435 \u0441\u043b\u0443\u0447\u0438\u043b\u043e\u0441\u044c \u0441 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u043c\u044b\u043c Flipper One. Kali Linux \u043f\u043e\u0434 IMX6 \u043f\u0440\u043e\u0441\u0442\u043e \u043d\u0435\u0442\u0443 (\u044f \u0433\u043e\u0442\u043e\u0432\u043b\u044e), \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0441\u043e\u0431\u0438\u0440\u0430\u0442\u044c \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0441\u0430\u043c\u043e\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u043d\u043e. \u041f\u0440\u043e\u0446\u0435\u0441\u0441 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e 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