12.3 Òýµ¼¹ÜÀíÆ÷ºÍ¸÷Òýµ¼½×¶Î

12.3.1 The Boot Manager

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boot0Òýµ¼¹ÜÀíÆ÷£º. ÓÉ FreeBSD µÄ°²×°³ÌÐòÒÔ¼° boot0cfg(8) Ëù°²×°µÄ MBR£¬ ĬÈÏ»ùÓÚ /boot/boot0¡£ (³ÌÐòboot0·Ç³£¼òµ¥£¬ ÓÉÓÚÔÚMBRÖеijÌÐòÖ»ÄÜÓÐ446×Ö½Ú³¤£¬ ·ÖÇø±íºÍMBRÄ©¶ËµÄ0x55AA±êʶҲҪ¼·Õ¼Ò»Ð©¿Õ¼ä¡£) Èç¹ûÄãÒѾ­°²×°boot0 ²¢ÇÒÓжà¸ö²Ù×÷ϵͳÔÚÄãµÄÓ²ÅÌÉÏ£¬ ÄÇôÄãÈç¹ûÄú°²×°ÁË FreeBSD MBR ¶øÇÒ°²×°Á˶à¸ö²Ù×÷ϵͳ£¬ Ôò»áÔÚϵͳÆô¶¯Ê±¿´µ½ÀàËÆÏÂÃæµÄÌáʾ£º

Àý 12-1. boot0 ½ØÆÁ

F1 DOS
F2 FreeBSD
F3 Linux
F4 ??
F5 Drive 1

Default: F2

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# fdisk -B -b /boot/boot0 device

¡¡¡¡device ÊÇҪдÈë MBR µÄÉ豸Ãû£¬±ÈÈç ad0 ´ú±íµÚÒ»¸ö IDE ´ÅÅÌ£¬ad2 ´ú±íµÚ¶þ¸ö IDE ¿ØÖÆÆ÷ÉϵĵÚÒ»¸ö IDE ´ÅÅÌ£¬ da0 ´ú±íµÚÒ»¸ö SCSI ´ÅÅÌ£¬µÈµÈ¡£ ÒÖ»ò£¬Èç¹ûÄãÐèÒªÒ»¸ö×ÔÐÐÅäÖõÄMBR£¬ÇëʹÓÃboot0cfg(8)¡£

The LILO Boot Manager: ÒªÏë°²×°Õâ¸öÒýµ¼¹ÜÀíÆ÷²¢Ò²ÓÃÀ´Òýµ¼FreeBSD£¬ Ê×ÏÈÆô¶¯Linux£¬²¢½«ÒÔÏÂÑ¡Ïî¼ÓÈëµ½ÒÑÓеÄÅäÖÃÎļþ /etc/lilo.conf£º

other=/dev/hdXY
table=/dev/hdX
loader=/boot/chain.b
label=FreeBSD

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12.3.2 µÚÒ»½×¶Î£¬/boot/boot1£¬ºÍµÚ¶þ½×¶Î£¬ /boot/boot2

¡¡¡¡¸ÅÄîÉÏ£¬µÚÒ»£¬µÚ¶þ½×¶ÎͬÊôÓÚÒ»¸ö³ÌÐò£¬´¦ÓÚ´ÅÅ̵ÄÏàÍ¬ÇøÓò¡£µ«ÓÉÓÚ¿Õ¼äÏÞÖÆ£¬ ËüÃDZ»·ÖΪÁ½²¿·Ö¡£¿ÉÊÇÄú×ÜÊÇ»áÒ»Æð°²×°ËüÃÇ¡£ËüÃÇÓɰ²×°Æ÷»ò bsdlabel(¼ûÏÂÎÄ)¸´ÖÆ×Ô±»×éºÏ¶ø³ÉµÄ /boot/boot¡£

¡¡¡¡ËüÃÇλÓÚÎļþϵͳÍ⣬Òýµ¼·ÖÇøµÄµÚÒ»¹ìµÀ£¬´ÓµÚÒ»ÉÈÇø¿ªÊ¼¡£ÔÚÕâÀïboot0£¬»òÕßÈÎºÎÆäËüÒýµ¼¹ÜÀíÆ÷£¬ ÆÚÍûÕÒµ½Ò»¸ö³ÌÐòÔËÐУ¬¼ÌÐøÒýµ¼½ø³Ì¡£ ËùʹÓõÄÉÈÇøÊý¿ÉÓÉ/boot/bootµÄ´óСȷ¶¨¡£

¡¡¡¡boot1 ·Ç³£¼òµ¥£¬ÒòΪËüÔÙ¶àÒ²Ö»ÄÜÓÐ 512 ×Ö½Ú£¬ Ö»ÄÜʶ±ð´¢´æ×Å·ÖÇøÐÅÏ¢µÄ bsdlabel£¬ ¼°Ñ°ÕÒÖ´ÐÐ boot2¡£

¡¡¡¡boot2 ÉÔ΢Óеã¼ÓÇ¿£¬Äܹ»Àí½â FreeBSD µÄÎļþϵͳÒÔ±ãÓÚѰÕÒÀïÃæµÄÎļþ£¬ ÄÜÌṩѡÔñÄں˺ͼÓÔØÆ÷µÄ¼òµ¥½çÃæ¡£

¡¡¡¡ÒòΪ loader ÓÐןüÇ¿µÄ¹¦ÄÜ£¬ ÌṩÁËÒ»Ì×Ò×ÓÚʹÓõÄÒýµ¼ÅäÖã¬boot2 Ò»°ã¶¼Ö´ÐÐ loader£¬ µ«ÒÔǰËüµÄÈÎÎñÊÇÖ±½ÓÔËÐÐÄںˡ£

Àý 12-2. boot2 µÄÆÁÄ»Êä³ö

>> FreeBSD/i386 BOOT
Default: 0:ad(0,a)/boot/loader
boot:

¡¡¡¡Èç¹ûÄúÒª¸ü¸ÄÒѰ²×°µÄ boot1 ºÍ boot2£¬ÇëʹÓÃÃüÁî bsdlabel(8)¡£

# bsdlabel -B diskslice

¡¡¡¡diskslice ÊÇÓÃÓÚÒýµ¼µÄ´ÅÅ̺ͷÖÇø£¬ ±ÈÈç ad0s1 ´ú±íµÚÒ»¸ö IDE ´ÅÅÌÉϵĵÚÒ»¸ö·ÖÇø¡£

dangerously dedicated: Èç¹ûÄúÔÚ bsdlabel(8) ÃüÁîÖÐֻʹÓÃÁË´ÅÅÌÃû£¬±ÈÈç ad0£¬¾Í»áÆÆ»µ´ÅÅÌÉϵÄËùÓзÖÇø¡£ Õ⵱Ȼ²»ÊÇÄúËùÏ£ÍûµÄ£¬ËùÒÔÔÚ°´Ï »Ø³µ ֮ǰ Ò»¶¨Òª¶ÔÃüÁî½øÐжà´ÎÈ·ÈÏ¡£

12.3.3 µÚÈý½×¶Î£¬/boot/loader

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¡¡¡¡loader ±»×÷ΪһÖÖÓѺõÄÅäÖ÷½Ê½£¬Ê¹ÓÃÁËÒ»×éÄÚ½¨ÇÒÒ×ÓõÄÃüÁ¡£ ÕâЩÃüÁîÓÉÒ»¸öÇ¿´óµÄ¶àµÄ½âÊÍÆ÷Ö§³Ö¹¹½¨£¬Æä±¾Éí´øÓи´ÔӵöàµÄÃüÁ¡£

12.3.3.1 Loader ³ÌÐòÁ÷³Ì

¡¡¡¡³õʼʱ£¬loader »á̽²â¿ØÖÆÌ¨ºÍ´ÅÅÌ£¬Ê¶±ðÊÇ´ÓÄÄ¿éÅÌÒýµ¼µÄ¡£ Ëü»á¸ù¾ÝÕâЩÐÅÏ¢ÉèÖñäÁ¿£¬ Æô¶¯½âÊÍÆ÷ÒÔ½ÓÊÜͨ¹ý½Å±¾»ò½»»¥·½Ê½´«À´µÄÓû§ÃüÁî¡£

¡¡¡¡loader È»ºó»á¶ÁÈ¡²¢ÔËÐÐ /boot/loader.rc£¬ ĬÈϵضÁÈ¡ /boot/defaults/loader.conf ÒÔÉèÖÿɿ¿µÄĬÈϱäÁ¿£¬¶ÁÈ¡ /boot/loader.conf ¶ÔÕâЩ±äÁ¿×÷±¾µØÐ޸ġ£loader.rc ÒÀ¾ÝÕâЩ±äÁ¿½øÐж¯×÷£¬¼ÓÔØÈκα»Ñ¡ÔñµÄÄ£¿éºÍÄںˡ£

¡¡¡¡×îºó£¬Ä¬Èϵأ¬loader »áÍ£Áô 10 ÃëµÈ´ý°´¼ü£¬ ÈôûÓз¢ÉúÖжϣ¬¾Í¿ªÊ¼Òýµ¼Äںˡ£Èç¹û±»Öжϣ¬Óû§»áµÃµ½Ò»¸öÃüÁîÐÐÌáʾ·û£¬ ÔÚÕâÀïÓû§µÃ¸ü¸Ä±äÁ¿¡¢Ð¶ÔØËùÓÐÄ£¿é¡¢¼ÓÔØÄ£¿é¡¢×îºóÒýµ¼ »òÖØÐÂÒýµ¼¡£

12.3.3.2 Loader ÄÚ½¨µÄÃüÁî

¡¡¡¡ÕâЩÊÇ×î³£ÓÃµÄ loader ÃüÁî.¶ÔËùÓпÉÓÃÃüÁîµÄ½âÊÍÇë²Î¼û loader(8)¡£

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boot [-options] [kernelname]

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boot-conf

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help [topic]

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include filename ...

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load [-t type] filename

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ls [-l] [path]

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lsdev [-v]

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lsmod [-v]

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more filename

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set variable, set variable=value

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unload

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12.3.3.3 Loader ʾÀý

¡¡¡¡ÕâÀïÓÐһЩʵ¼ÊÖÐ loader Ó÷¨µÄʾÀý

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    unload
    load kernel.old
    

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    ×¢Òâ: ʹÓÃÒÔÏÂÃüÁî¼ÓÔØ³£ÓõÄÄ£¿éºÍÁíÒ»¸öÄںˣº

    unload
    set kernel="kernel.old"
    boot-conf
    
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    load -t userconfig_script /boot/kernel.conf
    

12.3.3.4 Æô¶¯Ê±µÄ Splash ͼÏñ

Contributed by Joseph J. Barbish.

¡¡¡¡ÔÚÆô¶¯Ê±³öÏÖµÄ splash ͼÏñ±ÈÆðÔ­±¾µÄÆô¶¯ÐÅÏ¢¸ü¼Ó¿ÉÊÓ»°¡£ Õâ¸öͼÏñ½«±»Ê¼ÖÕÏÔʾÔÚÆÁÄ»ÉÏÖ±µ½³öÏÖ¿ØÖÆÌ¨µÄµÇ¼Ìáʾ»òÕß X ÏÔʾ¹ÜÀíÆ÷ÌṩÁ˵Ǽ»­Ãæ¡£

¡¡¡¡ÔÚ FreeBSD ϵͳÖÐÓÐÁ½¸ö»ù±¾µÄ»·¾³¡£ µÚÒ»¸öÊÇĬÈÏ´«Í³µÄ¿ØÖÆÌ¨ÃüÁîÐл·¾³¡£ ÔÚϵͳÆô¶¯Ö®ºó£¬ »áÔÚ¿ØÖÆÌ¨ÉϳöÏÖÒ»¸öµÇ¼Ìáʾ¡£ µÚ¶þ¸ö»·¾³ÊÇ X11 ×ÀÃæÍ¼Ðλ·¾³¡£ ÔÚ°²×°ÁË X11 ºÍÒ»ÖÖͼÐÎ ×ÀÃæ»·¾³£¬ ±ÈÈç GNOME£¬ KDE£¬ »òÕß XFce£¬ X11 ×ÀÃæ¿ÉÒÔÓà startx ÃüÁîÔËÐС£

¡¡¡¡±ÈÆð´«Í³»ùÓÚ×Ö·ûµÄµÇ¼Ìáʾ£¬ÓÐЩÓû§¿ÉÄܸüϲ»¶ X11 ͼÐλ¯µÄµÇ¼½çÃæ¡£ ͼÐλ¯µÄµÇ¼¹ÜÀíÆ÷Ïñ Xorg µÄ XDM£¬ GNOME µÄ gdm£¬ KDE µÄ kdm (»¹ÓÐÆäËû Port Collection ÖеÄ) »ù±¾É϶¼ÌṩÁËÒ»¸öͼÐλ¯µÄµÇ¼½çÃæ´úÌæ¿ØÖÆÌ¨ÉϵĵǼÌáʾ·û¡£ Ôڳɹ¦µÇ¼֮ºó£¬ ËüÃÇÕ¹ÏÖ¸øÓû§Ò»¸öͼÐλ¯µÄ×ÀÃæ¡£

¡¡¡¡ÔÚÃüÁîÐл·¾³£¬ splash ͼÏñ½«ÔÚÏÔʾµÇ¼Ìáʾ·û֮ǰÒþ²ØËùÓÐÆô¶¯Ê±µÄ¼à²âÓëÈÎÎñÆô¶¯µÄÏûÏ¢¡£ ÔÚ X11 »·¾³£¬ Óû§½«»á»ñµÃÒ»¸öÊÓ¾õÉϸü¼ÓÇåˬÆô¶¯ÌåÑ飬 ÀàËÆÓÚijЩÏñ (Microsoft® Windows »òÕß·Ç UNIX® ÀàÐ͵Äϵͳ) Óû§ËùÏ£ÍûÌåÑéµ½µÄ¡£

12.3.3.4.1 Splash ͼÏñ¹¦ÄÜ

¡¡¡¡Ä¿Ç°µÄ splash ͼÏñµÄ¹¦ÄܽöÏÞÓÚÖ§³Ö 256 É«µÄλͼ (.bmp) »òÕß ZSoft PCX (.pcx) Îļþ¡£ ´ËÍ⣬ splash ͼÏñÎļþµÄ·Ö±æÂʱØÐëÊÇ 320x200 ÏñËØ»òÕ߸üÉÙ£¬ ²Å¹»ÄÜÔÚ±ê×¼ VGA ÊÊÅäÆ÷ÉÏʹÓá£

¡¡¡¡ÒªÊ¹Óóߴç¸ü´óµÄͼÏñ£¬ ´ïµ½×î´ó·Ö±æÂÊ 1024x768 ÏñËØ£¬ ÔòÐ迪Æô FreeBSD µÄ VESA Ö§³Ö¡£ Õâ¿ÉÒÔͨ¹ýÔÚϵͳÆô¶¯Ê±¼ÓÔØ VESA Ä£¿éÍê³É£¬ »òÕßÔÚÄÚºËÅäÖÃÎļþÖмÓÈë VESA Ñ¡Ïî²¢±àÒë (²ÎÔÄ µÚ 8 ÕÂ)¡£ VESA Ö§³Ö¸øÓèÁËÓû§ÏÔʾ¸²¸ÇÕû¸öÏÔʾÆ÷µÄÆô¶¯»­ÃæÄÜÁ¦¡£

¡¡¡¡ÔÚÆô¶¯µÄʱºò splash ͼÏñ¾Í»á±»ÏÔʾÔÚÆÁÄ»ÉÏ£¬ Ëü¿ÉÒÔÔÚÈκÎʱºò¶¼°´ÈÎÒâ¼ü¹Ø±Õ¡£

¡¡¡¡Splash ͼÏñͬÑùÒ²»áÊÇ X11 Ö®ÍâĬÈÏµÄÆÁÄ»±£»¤¡£ ÔÚÒ»¶Îʱ¼äµÄÏÐÖÃºó£¬ÆÁÄ»±ã»áתΪÖÜÆÚÐԵı任ÏÔʾ splash ͼÏñ£¬ ´ÓÃ÷ÁÁÖÁ°µµ­£¬ Öܶø¸´Ê¼¡£ ĬÈ쵀 splash ͼÏñ (ÆÁÄ»±£»¤) ¿ÉÓÉ /etc/rc.conf ÖÐµÄ saver= Ñ¡Ïî¿ØÖÆ¡£ saver= Ñ¡ÏîÓÐһЩÄÚÖÃµÄÆÁÄ»±£»¤¿É¹©Ñ¡Ôñ£¬ ÍêÕûµÄÁбí¿ÉÒÔÔÙ splash(4) ÊÖ²áÒ³ÖÐÕÒµ½¡£ ĬÈÏµÄÆÁÄ»±£»¤±»³ÆÎª ¡°warp¡±¡£ Çë×¢ÒâÔÚ /etc/rc.conf ÖÐËùÖ¸¶¨ saver= Ñ¡Ïî½öÏÞÓ¦ÓÃÓÚÐéÄâ¿ØÖÆÌ¨¡£ ¶ÔÓÚ X11 ͼÐλ¯µÄµÇ¼¹ÜÀíÆ÷ÎÞЧ¡£

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12.3.3.4.2 ¿ªÆô Splash ͼÏñ¹¦ÄÜ

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