ʲôÊÇgrub 
¡¡¡¡grub ÊÇÒ»¸ö¶àÖØÆô¶¯¹ÜÀíÆ÷¡£grubÊÇGRand Unified BootloaderµÄËõд£¬Ëü¿ÉÒÔÔÚ¶à¸ö²Ù×÷ϵͳ¹²´æÊ±Ñ¡ÔñÒýµ¼Äĸöϵͳ¡£Ëü¿ÉÒÔÒýµ¼µÄ²Ù×÷ϵͳ°üÀ¨Linux,FreeBSD,Solaris,NetBSD,BeOSi,OS/2,Windows95/98,Windows NT,Windows2000¡£Ëü¿ÉÒÔÔØÈë²Ù×÷ϵͳµÄÄں˺ͳõʼ»¯²Ù×÷ϵͳ£¨ÈçLinux,FreeBSD£©£¬»òÕß°ÑÒýµ¼È¨½»¸ø²Ù×÷ϵͳ£¨ÈçWindows 98£©À´Íê³ÉÒýµ¼¡£ 
2. grubµÄÌØµã 
¡¡¡¡grub¿ÉÒÔ´úÌæliloÀ´Íê³É¶ÔLinuxµÄÒýµ¼£¬ÌرðÊÊÓÃÓÚlinuxÓëÆäËü²Ù×÷ϵͳ¹²´æÇé¿ö£¬ÓëliloÏà±È£¬ËüÓÐÒÔÏÂÌØµã£º 
Ö§³Ö´óÓ²ÅÌ 
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Á½ÖÖÖ´ÐÐģʽ 
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·ÖÇøÎ»Öøıäºó²»±ØÖØÐÂÅäÖà 
¡¡¡¡liloÊÇͨ¹ý¶ÁȡӲÅÌÉϵľø¶ÔÉÈÇøÀ´×°Èë²Ù×÷ϵͳ£¬Òò´Ëÿ´Î·ÖÇø¸Ä±ä¶¼±ØÐëÖØÐÂÅäÖÃlilo£¬ÀýÈçÄãÓÃPQ magicµ÷ÕûÁË·ÖÇøµÄ´óС£¬ÄÇliloÔÚÄãÖØÐÂÅäÖúÃ֮ǰ¾Í²»ÄÜÒýµ¼Õâ¸ö·ÖÇøµÄ²Ù×÷ϵͳÁË¡£¶øgrubÊÇͨ¹ýÎļþϵͳֱ½Ó°ÑºËÐĶÁÈ¡µ½Äڴ棬Òò´ËÖ»Òª²Ù×÷ϵͳºËÐĵÄ·¾¶Ã»Óиı䣬grub¾Í¿ÉÒÔÒýµ¼ÏµÍ³¡£ ³ý´ËÖ®Í⣬Grub»¹ÓÐÐí¶à·Ç³£Ç¿´óµÄ¹¦ÄÜ¡£ÀýÈçÖ§³Ö¶àÖÖÍⲿÉ豸£¬¶¯Ì¬×°ÔزÙ×÷ϵͳÄںˣ¬ÉõÖÁ¿ÉÒÔͨ¹ýÍøÂç×°ÔØ²Ù×÷ϵͳºËÐÄ¡£GrubÖ§³Ö¶àÖÖÎļþϵͳ£¬Ö§³Ö¶àÖÖ¿ÉÖ´ÐÐÎļþ¸ñʽ£¬Ö§³Ö×Ô¶¯½âѹ£¬¿ÉÒÔÒýµ¼²»Ö§³Ö¶àÖØÒýµ¼µÄ²Ù×÷ϵͳµÈ¡£ 
3. grubµÄʹÓà 
°²×°grub 
¡¡¡¡Èç¹ûÒѾ°²×°ÁËÀ¶µãLinux2.0ÔògrubÊÇĬÈϰ²×°µÄ¡£Òª°ÑgrubÖØÐ°²×°µ½Ö÷Òýµ¼ÉÈÇøÉÏ£¬Ö»ÐèÒª¼òµ¥´òÈëmakebootableÃüÁî¾Í¿ÉÒÔÁË¡£ 
ÖÆ×÷grubÆô¶¯ÅÌ 
¡¡¡¡Ê×ÏÈÈ·¶¨grubÒѾ°²×°£¬È»ºó½øÈëgrubµÄĿ¼£¬¼üÈ룺 
¡¡¡¡#cd /boot/grub 
¡¡¡¡·ÅÈëÒ»ÕÅÈíÅÌ£¬È»ºóÇÃÈëÃüÁ 
¡¡¡¡#dd if=stage1 of=/dev/fd0 bs=512 count=1 
¡¡¡¡#dd if=/stage2 of=/dev/fd0 bs512 seek=1 
¡¡¡¡ÕâÑù¾Í¿ÉÒÔ×öºÃÒ»ÕÅÆô¶¯ÅÌÁË¡£ 
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¡¡¡¡°²×°ÁËgrub¿ª»úºó»á³öÏÖÒ»¸ö²Ëµ¥£¬ÁгöËùÓÐµÄÆô¶¯Ñ¡Ïî¡£Èç¹ûÉèÖÃÁËÆô¶¯»ÃæÔò»áÏÔʾÆô¶¯»Ã棬°´Esc¼üÔò¿ÉÒÔÈ¡ÏûÆô¶¯»ÃæÏÔʾ²Ëµ¥Ñ¡Ïî¡£À¶µãLinuxËù´øµÄgrubµÄÃüÁîÌáʾÊÇÈ«ÖÐÎĵģ¬Ôڲ˵¥ÏÂÃæÏêϸÁгöÈç°´eÊÇ±à¼Æô¶¯ÃüÁ°´cÊÇʹÓÃÃüÁîÐеȡ£ÓÃÉÏϼü¿ÉÒÔÑ¡Ôñ²Ëµ¥Ï°´»Ø³µÆô¶¯ËùÑ¡Ïî¡£°´e¼ü¿ÉÒÔ±à¼ËùÑ¡ÏîµÄÆô¶¯ÃüÁÄã¿ÉÒÔÓÃÕâ¸ö¹¦ÄÜÁÙʱ¸Ä±äÄãµÄϵͳµÄÆô¶¯²ÎÊý£¬²Î¼ûÅäÖÃgrubÒ»½Ú¡£°´c¼üÔò½øÈëÃüÁîÐÐģʽ¡£ ¡¡¡¡ 
¡¡¡¡ÔÚÃüÁîÐÐģʽÏ¿ÉÒÔ´òÈëÃüÁîÖ±½ÓÖ´ÐУ¬ÀýÈçÄã¿ÉÒÔÇÃÈëpoweroff¹Ø±Õ¼ÆËã»ú¡£°´Tab¼ü¿ÉÒÔÁгöËùÓÐÖ§³ÖµÄÃüÁî¡£À¶µãLinuxÒѾ°Ñgrubºº»¯ÁË£¬ÆäÖÐÒ»²¿·ÖÃüÁîÇÃÈëÃû×Öºó»á¸ø³öÖÐÎÄÌáʾ£¬ÏÔʾÃüÁîµÄÓ÷¨ºÍ²ÎÊý¡£ 
4. ÅäÖÃgrub 
¡¡¡¡grubÆô¶¯Ê±»áÔÚ/boot/grub/ÖÐѰÕÒÒ»¸öÃû×ÖΪmenu.lstµÄÅäÖÃÎļþ£¬Èç¹ûÕÒ²»µ½´ËÎļþÔò²»½øÈë²Ëµ¥Ä£Ê½¶øÖ±½Ó½øÈëÃüÁîÐÐģʽ¡£ 
¡¡¡¡menu.lst ÊÇÒ»¸öÎı¾Îļþ£¬Äã¿ÉÒÔÓÃÈκÎÒ»¸öÎı¾±à¼Æ÷À´´ò¿ªËü¡£Ã¿Ò»Ðдú±íÒ»¸öÅäÖÃÃüÁÈç¹ûÒ»ÐеĵÚÒ»¸ö×Ö·ûΪ¾®ºÅ"#"ÔòÕâÒ»ÐÐΪעÊÍ£¬Äã¿ÉÒÔ¼òµ¥µØÓÃÔö¼Ó»ò¼õÉÙ×¢ÊÍÐÐÀ´¸Ä±äÅäÖᣠ
±à¼menu.lst£¬Ò»°ã»áÓÐÒÔϸ÷ÐÐ 
timeout second 
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default num 
ĬÈÏÆô¶¯µÚnum+1ÐÐÑ¡ÏҲ¾Í˵default=0ÔòĬÈÏÆô¶¯²Ëµ¥µÚÒ»ÐеIJÙ×÷ϵͳ£¬default=1ÔòÆô¶¯µÚ2ÐеÄϵͳ£¬Èç´ËÀàÍÆ¡£ 
splash pathname/filename 
Ö¸³ö¿ª»ú»ÃæµÄÎļþËù´æ·ÅµÄ·¾¶ºÍÎļþÃû£¬Èç splash /boot/logo/800x600x8.img ÊÇÖ¸ÓÃÔÚ/boot/logo·¾¶ÏµÄ800x600.imgÎļþ×÷Ϊ¿ª»ú»Ãæ 
title OSname title 
ºóÃæµÄ×Ö·û¾ÍÊÇÄãÔڲ˵¥ÏîÉÏËù¿´¼ûµÄÑ¡ÏÄã¿ÉÒÔдÉϲÙ×÷ϵͳµÄÃû×ÖºÍÃèÊö£¬ÈçÓà 
title BluePoint Linux, Single Mode ´ú±íÕâһѡÏîÊÇÒýµ¼À¶µãLinuxµÄµ¥Óû§Ä£Ê½¡£ 
ÏÂÃæ½áºÏÁ½¸öϵͳÒýµ¼ÃèÊöÀ´½âÊͼ¸¸öÒýµ¼Ñ¡ÏîµÄÒâÒå 
title BluePoint Linux, Default Mode 
root (hd0,1) 
kernel /boot/vmlinuz vga=auto root=/dev/hda2 
hd0ÊÇÖ¸µÚÒ»¸öÓ²ÅÌ(Ö÷Ó²ÅÌ) (hd0,1)ÊÇÖ¸µÚÒ»¸öÓ²Å̵ĵڶþ¸ö·ÖÇø¡£ kernel /boot/vmlinuz ÊÇÖ¸³öLinuxºËÐĵÄ·¾¶ÔÚ/boot/vmlinuzÖС£vga=auto ÊÇÉ趨ÏÔʾģʽ£¬root=/dev/hda2ÊÇÖ¸°ÑµÚÒ»¸öÓ²Å̵ĵڶþ¸ö·ÖÇø×÷Ϊ¸ù¹ÒÔØµã£¨"/"£©¡£ 
title Microsoft Windows 
root (hd1,0) 
chainloader (hd1,0)+1 
root (hd1,0)ÕâÊÇÖ¸µÚ¶þ¸öÓ²ÅÌ(´ÓÓ²ÅÌ)ÉϵÚÒ»¸ö·ÖÇø 
chainloader (hd1,0)+1 ×°ÈëÒ»¸öÉÈÇøµÄÊý¾ÝÈ»ºó°ÑÒýµ¼È¨½»¸øËü¡£ 
5. ´ÓÈíÅÌÆô¶¯grub 
¡¡¡¡ÖÆ×÷Æô¶¯Å̺ó¿ÉÒÔÓÃÈíÅÌÆô¶¯Òýµ¼Ó²ÅÌÉϵIJÙ×÷ϵͳ ²åÈëÖÆ×÷ºÃµÄÆô¶¯ÈíÅÌ£¬½øÈëBIOSÉ趨ÈíÅÌÆô¶¯¡£ÈíÅÌÆô¶¯³É¹¦ºó¾Í»á½øÈëgrubµÄÃüÁîÐÐģʽ 
grub> 
¡¡¡¡ÒªÆô¶¯Ò»¸ö²Ù×÷ϵͳ£¬Ê×ÏÈÖ¸¶¨Òýµ¼Äĸö·ÖÇøÉϵÄϵͳ£¬ÀýÈçÒªÒýµ¼Ö¸µÚÒ»¸öÓ²ÅÌÉϵĵÚÒ»¸ö·ÖÇøµÄ²Ù×÷ϵͳ£¬ÏȼüÈë 
grub>root (hd0,0) 
¡¡¡¡½Ó×ÅÈç¹ûÒªÆô¶¯µÄÊÇWindowsϵͳ£¬¼üÈë 
grub>chainloader (hd0,0)+1 
¡¡¡¡×¢Òâ(hd0,0)ÒªËæ×ÅÓ²Å̺ͷÖÇøµÄ²»Í¬¶ø¸Ä±äÊý×Ö¡£ Èç¹ûÒªÒýµ¼Linux»òÆäËûϵͳ£¬Ó¦¼üÈë 
grub>kernel £¨hd0,0£©/boot/vmlinuz root=/dev/hda1 
¡¡¡¡×¢Òâhda1²ÎÊýÒ²ÒªËæ×ÅÓ²Å̺ͷÖÇøµÄ²»Í¬¶ø¸Ä±ä£¬Èç´ÓµÚ¶þ¸öÓ²Å̵ĵÚÒ»¸ö·ÖÇøÒýµ¼ÔòÓÃhdb1¡£ 
¡¡¡¡×îºóÇÃÈëboot¾Í¿ÉÒÔÆô¶¯ÏµÍ³ÁË¡£ 
¡¡¡¡ÔÚÈκÎʱºò²»ÄÜÈ·¶¨ÃüÁî»òÕßÃüÁîµÄ²ÎÊý¶¼¿ÉÒÔ°´Tab»ñµÃÏà¹ØµÄ°ïÖú¡£ÓÃÉÏϼü¿ÉÒÔ»ñµÃÃüÁîµÄÀúÊ·¼Ç¼¡£ ÆäʵÕâЩÃüÁî¾ÍÊÇmenu.lstµÄÆô¶¯ÃèÊö£¬ÄúÒ²¿ÉÒÔ¸ù¾ÝÄÇЩÃèÊöÀ´×Ô¼º¼üÈëÆô¶¯ÃüÁ×îºóÇÃÈëboot¾Í¿ÉÒÔÒýµ¼ÏµÍ³ÁË¡£ 
GrubÅäÖÃÔÓ̸(×ªÔØ) 
1¡¢Ò»¸öGRUBÅäÖÃÎļþ 
2¡¢½â¶Ágrub.confÎļþ 
3¡¢ÅäÖÃgrub 
4¡¢GRUBµÄ½»»¥ÐÔ 
5¡¢³£¼ûgrub³ý´í·½·¨µÄ˼· 
1 Ò»¸öGRUBÅäÖÃÎļþ 
»ùÓÚ±¾ÀýµÄ·ÖÇøÈçÏ£º 
hda 15G 
hda1 8G / RED HAT LINUX8.0 
hda5 7G /home 
hdc 20G 
hdc1 6.4G WinXP 
hdc5 6.4G 
hdc6 6.4G 
hdc7 6.4G 
#fdisk -l 
# Disk /dev/hdc: 255 heads, 63 sectors, 2434 cylinders 
Units = cylinders of 16065 * 512 bytes 
Device Boot Start End Blocks Id System 
/dev/hdc1 * 1 894 7181023+ b Win95 FAT32 
/dev/hdc2 895 2434 12370050 f Win95 Extd (LBA) 
/dev/hdc5 895 1787 7172991 b Win95 FAT32 
/dev/hdc6 1788 2434 5196996 b Win95 FAT32 
Disk /dev/hda: 255 heads, 63 sectors, 1867 cylinders 
Units = cylinders of 16065 * 512 bytes 
Device Boot Start End Blocks Id System 
/dev/hda1 * 1 1020 8193118+ 83 Linux 
/dev/hda2 1021 1802 6281415 83 Linux 
/dev/hda3 1803 1867 522112+ 82 Linux swap 
grub.conf,Õâ¸öÎļþλÓÚ;/boot/grub/grub.conf 
# grub.conf generated by anaconda 
# 
# Note that you do not have to rerun grub after making changes to this file 
# NOTICE: You do not have a /boot partition. This means that 
# all kernel and initrd paths are relative to /, eg. 
# root (hd0,0) 
# kernel /boot/vmlinuz-version ro root=/dev/hda1 
# initrd /boot/initrd-version.img 
#boot=/dev/hda 
default=0 
timeout=3 
splashimage=(hd0,0)/boot/grub/splash.xpm.gz 
title Red Hat Linux (2.4.18-14) 
root (hd0,0) 
kernel /boot/vmlinuz-2.4.18-14 ro root=LABEL=/ 
initrd /boot/initrd-2.4.18-14.img 
title Microsoft Windows XP 
map (hd0) (hd1) 
map (hd1) (hd0) 
root (hd1,0) 
chainloader (hd1,0)+1 
makeactive 
boot 
2 ½â¶Ágrub.confÎļþ 
ÎÒÃǽ«À´¿´¿´grub.confÎļþÄÚÓï¾ä,(×¢:...)ÄڵĶ«Î÷ÊÇÎÒÃǵĽâ¶ÁÄÚÈÝ. 
# grub.conf generated by anaconda 
# 
# Note that you do not have to rerun grub after making changes to this file 
# NOTICE: You do not have a /boot partition. This means that 
# all kernel and initrd paths are relative to /, eg. 
# root (hd0,0) 
# kernel /boot/vmlinuz-version ro root=/dev/hda1 
# initrd /boot/initrd-version.img 
#boot=/dev/hda (×¢:ÒÔÉÏÒÔ·ûºÅ¾®£¢£££¢¿ªÍ·µÄÐбíʾ±»×¢Ê͵ô£¬Ã»ÓÐÈκÎÒâÒå) 
default=0 (×¢:ĬÈϵIJÙ×÷ϵͳ¾ÍÊÇÓÉdefault¿ØÖƵġ£defaultºó¼ÓÒ»¸öÊý×Ön£¬±íÃ÷ÊÇµÚ n£«1¸ö¡£ÐèҪעÒâµÄÊÇ£¬GRUBÖУ¬¼ÆÊýÊÇ´Ó0¿ªÊ¼µÄ£¬µÚÒ»¸öÓ²ÅÌÊÇhd0£¬µÚÒ» ¸öÈíÇýÊÇfd0£¬µÈµÈ¡£ËùÒÔ£¬default 0 ±íʾĬÈϵIJÙ×÷ϵͳÔÚÕâ¶ùÊÇ Red Hat Linux (2.4.18-14)Èç¹ûÄãÐ޸ijÉ1¾ÍÊÇWinXPÁË) 
timeout=3 (×¢:timeout±íʾĬÈϵȴýµÄʱ¼ä£¬Õâ¶ùÊÇ3ÃëÖÓ¡£³¬¹ý3Ã룬Óû§»¹Ã»ÓÐ×÷³öÑ¡ ÔñµÄ»°£¬ÏµÍ³½«×Ô¶¯Ñ¡ÔñĬÈϵIJÙ×÷ϵͳ;µ±È»Äã¿ÉÒԸijÉÈκÎÄãÀÖÒâµÄʱ¼ä) 
splashimage=(hd0,0)/boot/grub/splash.xpm.gz (×¢:Ö¸¶¨¿ª»ú»ÃæÎļþsplash.xpm.gzµÄλÖã¬Ò²¿ÉÒÔsplash /boot/logo/800x600x8.img) 
title Red Hat Linux (2.4.18-14) (×¢:±íʾRed Hat LinuxµÄ²Ëµ¥Ïî) 
root (hd0,0) (×¢:±íʾµÚÒ»¸öÓ²Å̵ÚÒ»¸ö·ÖÇø,ÕâÀïµÄrootºÍϵ ͳÄÚµÄroot²»ÊÇÒ»ÂëÊÂ!ÏêϸÈçÏÂ˵Ã÷) 
kernel /boot/vmlinuz-2.4.18-14 ro root=LABEL=/ (×¢:Ö¸¶¨Äں˵ÄλÖÃ,Ïêϸ˵Ã÷ÈçÏ ÎÄ) 
initrd /boot/initrd-2.4.18-14.img (×¢:³õʼ»¯) 
title Microsoft Windows XP (×¢:±íʾMicrosoft Windows XPµÄ²Ëµ¥Ïî) 
map (hd0) (hd1) (×¢:mapÊÇÃüÁî,ÏêϸÈçÏÂ) 
map (hd1) (hd0) 
root (hd1,0) (×¢:ÕâÊÇÖ¸µÚ¶þ¸öÓ²ÅÌ(´ÓÓ²ÅÌ)ÉϵÚÒ»¸ö·ÖÇø) 
chainloader (hd1,0)+1 (×¢:Á´Ê½×°ÈëÆ÷,×°ÈëÒ»¸öÉÈÇøµÄÊý¾ÝÈ»ºó°ÑÒýµ¼ Ȩ½»¸øËü¡£Ïêϸ˵Ã÷ÈçÏÂ) 
makeactive 
boot 
(×¢:ÔÚ Linux ÖУ¬µ±Ì¸µ½ "root" Îļþϵͳʱ£¬Í¨³£ÊÇÖ¸Ö÷ Linux ·ÖÇø¡£µ«ÊÇ£¬GRUB ÓÐËü×Ô¼ºµÄ root ·ÖÇø¶¨Òå¡£GRUB µÄ root ·ÖÇøÊDZ£´æ Linux Äں˵ķÖÇø¡£Õâ¿ÉÄÜÊÇÄúµÄÕýʽ root Îļþϵͳ£¬Ò²¿ÉÄܲ»ÊÇ¡£ÎÒÃÇÌÖÂÛµÄÊÇ GRUB£¬ÐèÒªÖ¸¶¨ GRUB µÄ root ·ÖÇø¡£½øÈë root ·ÖÇøÊ±£¬GRUB ½«°ÑÕâ¸ö·ÖÇø°²×°³ÉÖ»¶ÁÐÍ£¬ÕâÑù¾Í¿ÉÒԴӸ÷ÖÇøÖÐ×°Èë Linux Äںˡ£GRUB µÄÒ»¸öºÜ¡°¿á¡±µÄ¹¦ÄÜÊÇËü¿ÉÒÔ¶ÁÈ¡±¾»úµÄ FAT¡¢FFS¡¢minix¡¢ext2 ºÍ ReiserFS ·ÖÇø.µ½Ä¿Ç°ÎªÖ¹£¬Äú¿ÉÄÜ»á¸Ðµ½Ò»µãÒÉ»ó£¬ÒòΪ GRUB ËùʹÓõÄÓ²ÅÌ£¯·ÖÇøÃüÃûÔ¼¶¨Óë Linux ʹÓõÄÃüÃûÔ¼¶¨²»Í¬¡£ÔÚLinux ÖУ¬µÚÒ»¸öÓ²Å̵ĵÚÎå¸ö·ÖÇø³Æ×÷ "hda5"¡£¶ø GRUB °ÑÕâ¸ö·ÖÇø³Æ×÷ "(hd0,4)"¡£GRUB ¶ÔÓ²Å̺ͷÖÇøµÄ±àºÅ¶¼ÊÇ´Ó 0 ¿ªÊ¼¼ÆËã¡£ÁíÍ⣬ӲÅ̺ͷÖÇø¶¼ÓöººÅ·Ö¸ô£¬Õû¸ö±í´ïʽÓÃÀ¨ºÅÀ¨Æð¡£ÏÖÔÚ£¬¿ÉÒÔ·¢ÏÖÈç¹ûÒªÒýµ¼ Linux Ó²ÅÌ hda5£¬Ó¦ÊäÈë "root (hd0,4)"¡£ 
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grub> map (hd1) (hd0) 
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/dev/hda1£¬»òÕßGRUBÖеÄ(hd0,0)¡£Æô¶¯¹ý³ÌÈçÏ£º 
1.root (hd0,0) [This sets the root partition] 
2.kernel /boot/bzImage root=/dev/hda1 [This sets the kernel] 
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1.rootnoverify (hd1,0) 
2.makeactive 
3.chainloader +1 [+1 sets the first sector of the current root 
partition] 
4.boot [transfers the control and quits GRUB] 
menu.confÎļþ£ºËüÓÃÓÚ½¨Á¢Æô¶¯¶à²Ù×÷ϵͳʱµÄ²Ëµ¥¡£½¨Á¢menu.conf²¢²»ÄÑ¡£ËüʹÓüòµ¥µÄÓ¢Ó¾ÍÏóÄãÔÚÕâÒ»½Ú¿´µ½µÄÄÇÑù¡£ 
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title Red Hat Linux (2.4.18-14) 
root (hd0,0) 
kernel /boot/vmlinuz-2.4.18-14 ro root=LABEL=/ 
initrd /boot/initrd-2.4.18-14.img 
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title Windoze 
rootnoverify (hd0,0) 
makeactive 
chainloader +1 
boot 
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title Microsoft Windows XP 
map (hd0) (hd1) 
map (hd1) (hd0) 
root (hd1,0) 
chainloader (hd1,0)+1 
makeactive 
boot 
---- 
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rootÓ¢ÎĵÄÒâ˼¾ÍÊǸùµÄÒâ˼£¬ÔÚÕâÀïÊÇÈÃlinuxÖªµÀ×Ô¼ºËù´¦µÄλÖã¬Ò²¾ÍÊÇÎÒÃÇËù°²×°linuxµÄ£¯¸ù·ÖÇøËùÔÚµÄλÖà ¡£ 
4 GRUBµÄ½»»¥ÐÔ 
GRUB ×îºÃµÄÓŵãÖ®Ò»¾ÍÊÇÆäÇ¿½¡µÄÉè¼Æ -- ÔÚ²»¶ÏʹÓÃËüʱÇë±ðÍüÁËÕâµã¡£Èç¹û¸üÐÂÄں˻ò¸ü¸ÄËüÔÚ´ÅÅÌÉϵÄλÖ㬲»±ØÖØÐ°²×° GRUB¡£ÊÂʵÉÏ£¬ÈçÓбØÒª£¬Ö»Òª¸üРmenu.lst Îļþ¼´¿É£¬Ò»Çн«±£³ÖÕý³£¡£ 
Ö»ÓÐÉÙÊýÇé¿öÏ£¬²ÅÐèÒª½« GRUB Òýµ¼×°ÈëÆ÷ÖØÐ°²×°µ½Òýµ¼¼Ç¼¡£Ê×ÏÈ£¬Èç¹û¸ü¸Ä GRUB root ·ÖÇøµÄ·ÖÇøÀàÐÍ£¨ÀýÈ磬´Ó ext2 ¸Ä³É ReiserFS£©£¬ÔòÐèÒªÖØÐ°²×°¡£»òÕߣ¬Èç¹û¸üР/boot/grub ÖÐµÄ stage1 ºÍ stage2 Îļþ£¬ÓÉÓÚËüÃÇÀ´×Ô¸üа汾µÄ GRUB£¬ºÜÓпÉÄÜÒªÖØÐ°²×°Òýµ¼×°ÈëÆ÷¡£ÆäËüÇé¿öÏ£¬¿ÉÒÔ²»±ØÀí²Ç£¡ 
GRUBµÄ×î´óµÄÌØµã¾ÍÊǽ»»¥ÐÔÌØ±ðÇ¿¡£ÔÚ¿ª»úʱ£¬°´Ò»Ï¡°c¡±£¬½«½øÈëGRUB ¿ØÖÆÌ¨¡£ÏÔʾÈçÏ£º 
GRUB version 0.5.96.1 (640K lower / 3072K upper memory) 
[ Minimal BASH-like line editing is supported. For the first word, TAB 
lists possible command completions. Anywhere else TAB lists the possible 
completions of a device/filename. ] 
grub> 
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grub> root (h 
ÏÖÔÚ£¬°´Ò»´Î Tab ¼ü¡£Èç¹ûϵͳÖÐÓжà¸öÓ²ÅÌ£¬GRUB ½«ÏÔʾ¿ÉÄÜÍê³ÉµÄÁÐ±í£¬´Ó "hd0" ¿ªÊ¼¡£Èç¹ûÖ»ÓÐÒ»¸öÓ²ÅÌ£¬GRUB ½«²åÈë "hd0,"¡£Èç¹ûÓжà¸öÓ²ÅÌ£¬¼ÌÐø½øÐУ¬ÔÚ ("hd2") ÖÐÊäÈëÃû³Æ²¢ÔÚÃû³Æºó½ô¸ú×ÅÊäÈ붺ºÅ£¬µ«²»Òª°´ Enter ¼ü¡£²¿·ÖÍê³ÉµÄ root ÃüÁî¿´ÆðÀ´ÈçÏ£º 
grub> root (hd0, 
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grub> root (hd0, (tab£¬°´tabһϼü) 
Possible partitions are: 
Partition num: 0, Filesystem type is fat, partition type 0x6 
Partition num: 2, Filesystem type is ext2fs, partition type 0x83 
Partition num: 4, Filesystem type unknown, partition type 0x7 
Partition num: 5, Filesystem type is ext2fs, partition type 0x83 
Partition num: 6, Filesystem type is fat, partition type 0xb 
Partition num: 7, Filesystem type is fat, partition type 0xb 
Partition num: 8, Filesystem type is ext2fs, partition type 0x83 
Partition num: 9, Filesystem type unknown, partition type 0x82 
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grub> root (hd0, 
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grub> kernel /boot/vmlinuz-2.4.2 root=/dev/hda5 ro 
[Linux-bzImage, setup=0x1200, size=0xe1a30] 
ÄúÒѾ°²×°ÁË root Îļþϵͳ²¢×°ÈëÁËÄںˡ£ÏÖÔÚ£¬¿ÉÒÔÒýµ¼ÁË¡£Ö»ÒªÊäÈë "boot"£¬Linux Òýµ¼¹ý³Ì¾Í½«¿ªÊ¼¡£ÊDz»ÊǺÜcool°¡£¬GRUBµÄmenu.lst¸üÏñÒ»¸ölinuxϵĽű¾³ÌÐò¡£ 
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ʹÓÃÃüÁ¸ù·ÖÇø±äΪµ±Ç°Ä¿Â¼µÄ¸ù·ÖÇø:chroot /mnt/sysimage 
È»ºóתµ½/sbin/Õâ¸öĿ¼ÖÐ. 
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timeout=10 
splashimage=(hd0,0)/grub/splash.xpm.gz 
title Red Hat Linux (2.4.18-14) 
root (hd0,0) 
kernel /vmlinuz-2.4.18-14 ro root=LABEL=/ 
initrd /initrd-2.4.18-14.img 
title DOS 
rootnoverify (hd1,0) 
makeactive 
chainloader (hd1,0)+1 
map (hd0) (hd1) 
map (hd1) (hd0) 
boot 
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