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Booty ã䜿çšããŠããŒãããããã¹ãŠã®ãã£ã¹ããªãã¥ãŒã·ã§ã³ã¯ããŠãŒã¶ãŒãéžæãã SHMFS (tmpfs) ãŸã㯠SquashFS + Overlay FS ã®ãããããå®è¡ããŸãã ãã£ã¹ããªãã¥ãŒã·ã§ã³ã¯äžåºŠäœæãããããŒã ããã»ã¹äžã«ãã«ãŒãã«çŽç²ãª tmpfs ã䜿çšããããtmpfs ã«å€æŽãèšé²ãã Overlay FS + SquashFS ã®çµã¿åããã䜿çšã§ããããã«ãããã©ã¡ãŒã¿ãŒãéžæãããŸãã ããŠã³ããŒãå¯èœãªé åžãããã RAM ã«äºåã«ã³ããŒããããšãã§ããŸããããã«ãããé åžããããããŠã³ããŒãããŠã¡ã¢ãªã«ã³ããŒããåŸã« USB ãã©ã€ããåãå€ãããšãã§ããŸãã
ãŸããBooty ã¯ãçŸåšã®ã·ã¹ãã ãŸãã¯ããžãŒããã¯ã¹ã®ãã€ãã£ã ãŠãŒãã£ãªãã£ã䜿çšã§ããç¬èªã® initrd ã€ã¡ãŒãžãçæããŸãã ãã£ã¬ã¯ã㪠(chroot) ã«ã€ã³ã¹ããŒã«ãããŠããé åžãããå šäœã initramfs ã«å«ãã (ããã¯ãã) ããšãã§ããŸãã ããã¯ãkexec ã䜿çšããŠã·ã¹ãã ãã¢ããã°ã¬ãŒãããå¿ èŠãããå Žåã«åœ¹ç«ã¡ãŸããæ°ããã«ãŒãã«ãš initrd å ã®æ°ããã·ã¹ãã 㧠initrd ããªããŒãããã ãã§ãã
Booty åºæã® initrd ã€ã¡ãŒãžã®äœæ:
mkdir initramfs/
mkinitramfs initramfs/ --output initrd
ãgentoo/ããã£ã¬ã¯ããªããã®ãã£ã¹ããªãã¥ãŒã·ã§ã³ãå«ã initrd ã€ã¡ãŒãžãäœæããŸãã
mkdir initramfs/
mkinitramfs initramfs/ --overlay gentoo/ --cpio --output initrd
ãã®åŸããã® initrd ã€ã¡ãŒãžã¯ãããšãã° PXE ãŸã㯠kexec çµç±ã§ããŒãã§ããããã«å®å šã«æºåãæŽããŸãã
次ã«ãBooty ã¯ããªãŒããŒã¬ã€ããšããŠæå®ãããã·ã¹ãã ã§ã€ã¡ãŒãžãçæããŸãã ããšãã°ãæ¡ä»¶ä»ã Gentoo ãå¥ã®ãã£ã¬ã¯ããªã«ã€ã³ã¹ããŒã« (ã¢ãŒã«ã€ãã解å) ããããšãã§ããŸãããã®åŸãBooty ã䜿çšããŠããã®ã·ã¹ãã ãå«ã cpio ã¢ãŒã«ã€ããŸã㯠SquashFS ã€ã¡ãŒãžãçæãããŸãã å¥ã®ãã£ã¬ã¯ããªã§ãã£ã¹ããªãã¥ãŒã·ã§ã³ãæ§æããå人èšå®ãå¥ã®ãã£ã¬ã¯ããªã«ã³ããŒããããšãã§ããŸãã ããããã¹ãŠã®ãã¬ã€ã€ãŒãã¯çžäºã«é 次ããŒããããåäžã®åäœã·ã¹ãã ãäœæããŸãã
mkdir initramfs/
mkinitramfs initramfs/ --overlay gentoo/ --overlay èšå®/ --overlay ããã¥ã¡ã³ã/ --squashfs --output initrd
æçµçã«ãBooty ã䜿çšãããšãã€ã¡ãŒãžããäžèšã®ã·ã¹ãã ãã€ã³ã¹ããŒã«ããããšã§ãããŒãå¯èœãª ISO ã€ã¡ãŒãžãš USBãHDDãSSDãããã³ãã®ä»ã®ãã©ã€ããäœæã§ããŸãã
å¿ èŠãªè¿œå ã¢ã¯ã·ã§ã³ã¯ãäºåã«ããŒãçšã«ã«ãŒãã« (vmlinuz) ãæºåããããšã ãã§ãã èè (Spoofing) ã¯ããmake defconfigãã®äœ¿çšãæšå¥šããŠããŸãã ã€ã¡ãŒãžãäœæããåã«ãvmlinuz ã«ãŒãã«ãšæåã®äŸã§äœæããã空ã®ãinitrd ãé 眮ããŠãã£ã¬ã¯ããªãæºåããå¿ èŠããããŸãã
mkdir iso/
cp /boot/vmlinuz-* iso/boot/vmlinuz
cp initrd iso/ããŒã/initrd
ããã§æºåãå®äºããã®ã§ããã®ãã£ã¬ã¯ããªãã ISO ã€ã¡ãŒãžãäœæã§ããããã«ãªããŸãã
次ã®ã³ãã³ãã¯ãããŒãå¯èœãª ISO ã€ã¡ãŒãžã§ã¯ãªããåãªã ISO ã€ã¡ãŒãžãäœæããŸãã
mkdir iso/
mkbootisofs iso/ --output archive.iso
ããŒã ã€ã¡ãŒãžãäœæããã«ã¯ãBIOS ã«ã--legacy-bootããªãã·ã§ã³ããUEFI ã«ã--efiããªãã·ã§ã³ãããããæå®ããå¿ èŠããããŸãããªãã·ã§ã³ã¯ãã©ã¡ãŒã¿ãšã㊠grub2 ãŸã㯠syslinux ã®ãããããåãåããŸãããªãã·ã§ã³ã XNUMX ã€ã ãæå®ããããšãã§ããŸã (ããšãã°ãUEFI ããŒãã®ãµããŒãã¯å¿ èŠãªããããæå®ã§ããªãå ŽåããããŸã)ã
mkbootisofs iso/ --legacy-boot syslinux --output boot-biosonly.iso
mkbootisofs iso/ --legacy-boot syslinux --efi grub2 --output boot-bios-uefi.iso
mkbootisofs iso/ --efi grub2 --output boot-uefionly.iso
以åãšåæ§ã«ãã·ã¹ãã ã®ã€ã¡ãŒãžã¯ initrd ã«å«ãŸããŠããããããã ISO ã«å«ããããšãã§ããŸãã
mkbootisofs iso/ --overlay gentoo/ --squashfs --legacy-boot grub2 --efi grub2 --output gentoo.iso
ãã®ã³ãã³ãã®åŸãããŒãå¯èœãª BIOS/UEFI ISO ã€ã¡ãŒãžãçæããããªãŒããŒã¬ã€ FS ã䜿çšããããŒã¿ ã¹ãã¬ãŒãžã« tmpfs ã䜿çšã㊠Gentoo ã SquashFS ã€ã¡ãŒãžã«ããŒãããŸãã ã«ãŒãã«ã¯ãSquashFS ã«ãããªãŒããŒã¬ã€ FS ãµããŒãã䜿çšããŠæ§ç¯ããå¿ èŠããããŸãã ãã ããäœããã®çç±ã§ãããå¿ èŠãªãå Žåã¯ã-squashfs ã®ä»£ããã«ã-cpioããªãã·ã§ã³ã䜿çšããŠãgentoo/ ã cpio ã¢ãŒã«ã€ããšããŠããã±ãŒãžåã§ããŸãããã®å Žåãã¢ãŒã«ã€ãã¯èµ·åæã« tmpfs ã«çŽæ¥è§£åãããŸããããã¯ãã·ã¹ãã ã解åããããã« tmpfs ã«åå㪠RAM ããã£ããšããããšã§ãã
èå³æ·±ãäºå®: ã-efiããªãã·ã§ã³ã䜿çšããŠäœæããã ISO ã€ã¡ãŒãžãããã¡ã€ã«ãã³ã㌠(cp -r) ããã ã㧠FAT32 ãã©ãã·ã¥ ãã©ã€ãã«è§£åããããšããã®ä»æ§ã®ãããã§ããã©ãã·ã¥ ãã©ã€ãã¯äºåã®æºåãªã㧠UEFI ã¢ãŒãã§èµ·åããŸãã UEFI ããŠã³ããŒããŒã®ã
ããŒãå¯èœãª ISO ã«å ããŠãåããã©ã¡ãŒã¿ã䜿çšããŠããŒãå¯èœãªãã©ã€ã (USBãHDDãSSD ãªã©) ãäœæã§ãããã®ãã©ã€ãã¯åŒãç¶ãæ¬æ¥ã®ç®çã«äœ¿çšã§ããŸãã ãããè¡ãã«ã¯ãããšãã° USB ããã€ã¹ãããŠã³ããããã®ããã€ã¹äžã§ mkbootisofs ãå®è¡ããå¿ èŠããããŸãã ãªãã·ã§ã³ã-bootableãã XNUMX ã€è¿œå ããã ãã§ãæå®ãããã£ã¬ã¯ããªãååšãããã©ã€ããèµ·åå¯èœã«ãªããŸãã
/ dev / sdb1 / mntãããŠã³ãããŸã
mkbootisofs /mnt --overlay gentoo/ --squashfs --legacy-boot grub2 --efi grub2 --bootable
ãã®åŸãUSB ããã€ã¹ã¯ gentoo/ ãªãŒããŒã¬ã€ã§èµ·åå¯èœã«ãªããŸã (/boot/vmlinuz ããã³ /boot/initrd ãã¡ã€ã«ãããã€ã¹ã«ã³ããŒããããšãå¿ããªãã§ãã ãã)ã
äœããã®çç±ã§ãã©ã€ãã /mnt ã«ããŠã³ããããŠãããã/mnt ãã¡ã€ã³ ããã€ã¹ /dev/sda ã«ããããšãå€æããå ŽåãããŒãããŒããŒã¯ /dev/sda ã«æžãæããããŸãã --bootable ãªãã·ã§ã³ãæå®ããå Žåã¯æ³šæãå¿ èŠã§ãã
ããŒã ããã»ã¹äžã«ãBooty ã¯ããŒã ããŒããŒãgrub.cfg ãŸã㯠syslinux.cfg ã«æž¡ãããšãã§ããå€æ°ã®ãªãã·ã§ã³ããµããŒãããŸãã ããã©ã«ãã§ã¯ããªãã·ã§ã³ãæå®ããªããšããã¹ãŠã®ãªãŒããŒã¬ã€ã tmpfs ã«ããŒãããã解åãããŸã (ããã©ã«ã ãªãã·ã§ã³ ooty.use-shmfs)ã ãªãŒããŒã¬ã€ FS ã䜿çšããã«ã¯ãbooty.use-overlayfs ãªãã·ã§ã³ã䜿çšããå¿ èŠããããŸãã booty.copy-to-ram ãªãã·ã§ã³ã¯ãæåã«ãªãŒããŒã¬ã€ã tmpfs ã«ã³ããŒãããã®åŸãããããæ¥ç¶ããŠããŒãããã ãã§ãã ã³ããŒããããUSB ããã€ã¹ (ãŸãã¯ä»ã®ã¹ãã¬ãŒãž ããã€ã¹) ãåé€ã§ããŸãã
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