割と新しめのカーネルで、フロッピーディスク1枚に収まるLinuxディストリビューションを作る方法を解説します
খ͍͞-JOVYڥͷ࡞ΓํNaomasa Matsubayashi
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݄-JOVY։ൃऴྃIUUQTMLNMPSHMLNMDate Mon, 9 Apr 2012 15:30:50 +0200From Willy Tarreau <>Subject No more Linux 2.4 releases
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Linux version 3.12.8 (root@Grueza) (gcc version 4.7.3 (Gentoo4.7.3-r1 p1.4, pie-0.5.5) ) #2 Sat Feb 22 17:22:05 JST 2014e820: BIOS-provided physical RAM map:BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usableBIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reservedBIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reservedBIOS-e820: [mem 0x0000000000100000-0x0000000007ffdfff] usableBIOS-e820: [mem 0x0000000007ffe000-0x0000000007ffffff] reservedBIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reservedBIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reservedNotice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel!SMBIOS 2.4 present.e820: last_pfn = 0x7ffe max_arch_pfn = 0x100000PAT not supported by CPU.init_memory_mapping: [mem 0x00000000-0x000fffff]init_memory_mapping: [mem 0x07800000-0x07bfffff]init_memory_mapping: [mem 0x00100000-0x077fffff]init_memory_mapping: [mem 0x07c00000-0x07ffdfff]0MB HIGHMEM available.127MB LOWMEM available.mapped low ram: 0 - 07ffe000low ram: 0 - 07ffe000Zone ranges:DMA [mem 0x00001000-0x00ffffff]Normal [mem 0x01000000-0x07ffdfff]HighMem emptyMovable zone start for each nodeEarly memory node rangesnode 0: [mem 0x00001000-0x0009efff]node 0: [mem 0x00100000-0x07ffdfff]e820: [mem 0x08000000-0xfeffbfff] available for PCI devicesBuilt 1 zonelists in Zone order, mobility grouping on. Totalpages: 32412Kernel command line: console=ttyS0PID hash table entries: 512 (order: -1, 2048 bytes)Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)$0/'*(@13*/5,Χʔωϧ͕ίϯιʔϧʹใΛग़ྗ͢ΔػೳΔͱΧʔωϧ͕ແޱʹͳΔ͋Δ࣌ ͳ͍࣌
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$ readelf -s a.outSymbol table '.dynsym' contains 13 entries:Num: Value Size Type Bind Vis Ndx0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND1: 0000000000000000 0 NOTYPE WEAK DEFAULT UND__gmon_start__2: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_Jv_RegisterClasses3: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZNSt8ios_base4InitC1Ev@GLIBCXX_3.4 (2)4: 0000000000000000 0 FUNC GLOBAL DEFAULT UND__libc_start_main@GLIBC_2.2.5 (3)5: 0000000000000000 0 FUNC GLOBAL DEFAULT UND__cxa_atexit@GLIBC_2.2.5 (3)6: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_ITM_deregisterTMCloneTab7: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZStlsISt11char_traitsIcE@GLIBCXX_3.4 (2)8: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_ITM_registerTMCloneTable9: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZNSolsEPFRSoS_E@GLIBCXX_3.4 (2)10: 00000000004007d0 0 FUNC GLOBAL DEFAULT UND_ZSt4endlIcSt11char_trait@GLIBCXX_3.4 (2)$ readelf -s a.outSymbol table '.dynsym' contains 13 entries:Num: Value Size Type Bind Vis NdxName0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND1: 0000000000000000 0 NOTYPE WEAK DEFAULT UND__gmon_start__2: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_Jv_RegisterClasses3: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZNSt8ios_base4InitC1Ev@GLIBCXX_3.4 (2)4: 0000000000000000 0 FUNC GLOBAL DEFAULT UND__libc_start_main@GLIBC_2.2.5 (3)5: 0000000000000000 0 FUNC GLOBAL DEFAULT UND__cxa_atexit@GLIBC_2.2.5 (3)6: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_ITM_deregisterTMCloneTab7: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZStlsISt11char_traitsIcE@GLIBCXX_3.4 (2)8: 0000000000000000 0 NOTYPE WEAK DEFAULT UND_ITM_registerTMCloneTable9: 0000000000000000 0 FUNC GLOBAL DEFAULT UND_ZNSolsEPFRSoS_E@GLIBCXX_3.4 (2)10: 00000000004007d0 0 FUNC GLOBAL DEFAULT UNDTUSJQTUSJQVOOFFEFEόΠφϦ࣮ߦՄೳόΠφϦ͔ΒγϯϘϧςʔϒϧΛআ͢ΔTUSJQTUSJQVOOFFEFE࣮ߦՄೳόΠφϦ͔ΒγϯϘϧςʔϒϧΛআ͢ΔΔલ ͬͨޙ
$ readelf -S a.outThere are no sections in this file.$ readelf -S a.outThere are 28 section headers, starting at offset 0x1180:Section Headers:[Nr] Name Type AddressOffsetSize EntSize Flags Link InfoAlign[ 0] NULL 0000000000000000000000000000000000000000 0000000000000000 0 00[ 1] .interp PROGBITS 000000000040027000000270000000000000001c 0000000000000000 A 0 01[ 2] .note.ABI-tag NOTE 000000000040028c0000028c0000000000000020 0000000000000000 A 0 04[ 3] .hash HASH 00000000004002b0000002b00000000000000048 0000000000000004 A 5 0TUSJQTUSJQVOOFFEFEόΠφϦ࣮ߦՄೳόΠφϦ͔ΒγϯϘϧςʔϒϧΛআ͢ΔTTUSJQ࣮ߦՄೳόΠφϦ͔ΒηΫγϣϯϔομΛআ͢ΔΔલ ͬͨޙIUUQXXXNVQQFUMBCTDPNdCSFBECPYTPGUXBSFFMGLJDLFSTIUNM
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$ mkfs.minix /dev/fd0$ mount -t auto /dev/fd0 /boot$ cp initramfs.cpio.lzma /boot$ cp $(KERNEL_DIR)/arch/x86/boot/bzImage /boot/vmlinuz$ cat </etc/lilo.confboot = /dev/fd0compactmap = /boot/mapvga = normalimage = /boot/vmlinuzlabel = "Linux"initrd = /boot/initramfs.cpio.lzmaEOF$ lilo-*-0ΛΠϯετʔϧ
LILO 23.2 Loading LinuxBIOS data check successfulstarting pid 35, tty '/dev/tty1': '/sbin/getty -L tty1 38400 linux'Tiny login:ಈ͍ͨ
# wget http://slashdot.org/Connecting to slashdot.org (216.34.181.45:80)# dmesgdmesg: klogctl: Function not implemented
44)ΫϥΠΞϯτಉࠝ൛*1WରԠ൛IUUQUDP:/24MFFNETVNECFBEBEIUUQUDPRG-Y[PLNETVNGECDGGFBE
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ʮํۭ͔ΒGentoo͕ʯγεςϜΫϥυLFYFD༻ΧʔωϧBVGTΛͬͯมߋ3".ʹอଘϑϧඋͳΧʔωϧJ4$4* SFBEPOMZᶃᶄIUUQUDPI'YZVTBLFO CBDEFEFCEBFFEDEEFᶅGentoo)551
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MJOVYYZ͕&0-ʹͳͬͨΒ·ͩઓ͏ज़͋Δ͜͜·ͰY@Λ͖͕ͬͯͨYʹ͢ΕएׯΧʔωϧ͕খ͘͞ͳΔ,J#ͷ߹,J#
MJOVYYZ͕&0-ʹͳͬͨΒ·ͩઓ͏ज़͋ΔϒϩοΫσόΠεΛҰαϙʔτ͠ͳ͍Α͏ʹ͢Ε/PPQεέδϡʔϥ͕ෆཁʹͳΔ,J#,J#ͷ߹
MJOVYYZ͕&0-ʹͳͬͨΒ·ͩઓ͏ज़͋Δ"$1*ͱDQVGSFRʮඞͣ༗Δͱظ͢ΔυϥΠό͕ډΔʯͨΊʹΉͳ͘༗ޮʹ͍ͯ͠Δ͜ͷΜͷυϥΠόͷιʔεΛमਖ਼͢Ε"$1*ͱDQVGSFR֎ͤΔͣ
·ͱΊ-JOVYΧʔωϧ͜ͷͰڊେԽ͚ͨ͠Ͳࠓͷ-JOVYʹڊେԽʹ߅͏खஈ๛ʹ͋Δ͔ΒετϨʔδ͕ઈతʹখͯ͘͞ෛ͚ΔͳΨϯόϨʂ
44)ಉࠝ൛*1W൛(FOUPP൛Thank you for listening.ઃఆIUUQUDPRG-Y[PLNETVNGECDGGFBEIUUQUDP:/24MFFNETVNECFBEBEIUUQUDPI'YZVTBLFONETVNCBDEFEFCEBFFEDEEFIUUQXXXVTBLVSBOFKQEFOFCDPOpHT
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