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ÒýÓÃ:Briefly, boot loader is the first software program that runs when a computer starts. It is responsible for loading and transferring control to the operating system kernel software (such as the Hurd or the Linux). The kernel, in turn, initializes the rest of the operating system (e.g. GNU).
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WindowsÒ²ÓÐÀàËÆµÄ¹¤¾ßNTLOADER£»±ÈÈçÎÒÃÇÔÚ»úÆ÷Öа²×°ÁËWindows 98ºó£¬ÎÒÃÇÔÙ°²×°Ò»¸öWindows XP £¬ÔÚ»úÆ÷Æô¶¯µÄ»áÓÐÒ»¸ö²Ëµ¥ÈÃÎÒÃÇÑ¡Ôñ½øÈëÊǽøÈëWindows 98 »¹ÊǽøÈëWindows XP¡£NTLOADER¾ÍÊÇÒ»¸ö¶àϵͳÆô¶¯Òýµ¼¹ÜÀíÆ÷£¬NTLOADER ͬÑùÒ²ÄÜÒýµ¼Linux£¬Ö»ÊǼ«ÎªÂé·³°ÕÁË£»
ÔÚPowerpc ¼Ü¹¹µÄ»úÆ÷ÖУ¬Èç¹û°²×°ÁËLinuxµÄPowerpc °æ±¾£¬´ó¶àÊÇÓÃyaboot ¶àÖØÒýµ¼¹ÜÀíÆ÷£¬±ÈÈçApple»úĿǰÓõÄÊÇIBM Powerpc´¦ÀíÆ÷£¬ËùÒÔÔÚÈç¹ûÏëÔÚApple»úÉÏ£¬°²×°Macos ºÍLinux Powerpc °æ±¾£¬´ó¶àÊÇÓÃyabootÀ´Òýµ¼¶à¸ö²Ù×÷ϵͳ£»
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GNU GRUB ÊÇÒ»¸ö¶àÖØ²Ù×÷ϵͳÆô¶¯¹ÜÀíÆ÷¡£GNU GRUB ÊÇÓÉGRUB£¨GRand Unified Bootloader£© ÅÉÉú¶øÀ´¡£GRUB ×î³õÓÉErich Stefan Boleyn Éè¼ÆºÍÓ¦Óã»
ÒýÓÃ:GNU GRUB is a Multiboot boot loader. It was derived from GRUB, GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.
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[root@localhost ~]# rpm -ivh grub*.rpm
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[root@localhost ~]# installpkg grub*.tgz
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[root@localhost ~]#tar zxvf grub*.tar.gz
[root@localhost ~]#cd grub-xxx
[root@localhost ~]#./configure;make;make install
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[root@localhost ~]# grub
[root@localhost ~]# grub-install
Èç¹ûÄú²»ÄÜÕÒµ½ÕâÁ½¸öÃüÁ¿ÉÄÜÄúµÄ¿ÉÖ´ÐгÌÐòµÄ·¾¶Ã»ÓÐÉèÖã»
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[root@localhost ~]# /usr/sbin/grub
[root@localhost ~]# /usr/sbin/grub-install
Èç¹ûÄú»¹ÊÇÕÒ²»µ½GRUBÈí¼þ°ü°²×°ÔÚÄÄÁË£»Äú¿ÉÒÔÓÃÏÂÃæµÄÃüÁîÀ´½â¾öºÍ²éÕÒ£»
[root@localhost ~]# updatedb ×¢£ºÕâ¸öÒª»¨ºÜ³¤Ê±¼ä£»ÊÇË÷Òýslocate µÄ¿â£¬È»ºóÔÙͨ¹ýlocateÀ´²éÕÒ£»
[root@localhost ~]# locate grub
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ÒýÓÃ:[root@localhost ~]# locate grub
/sbin/grub-md5-crypt
/sbin/grub
/sbin/grub-install
/sbin/grub-terminfo
ÔÚÒ»°ãÇé¿öÏ£¬ÔÚ·¾¶ÖдøÓÐbin»òsbinÖÐ×ÖÑùµÄ£¬ÕâЩ·¾¶Ï¶¼ÊÇ¿ÉÖ´ÐгÌÐò£»sbin Êdz¬¼¶È¨ÏÞÓû§²ÅÄÜʹÓõĹÜÀíÃüÁҪʹÓÃÕâЩÃüÁîÒ»°ãµÄÇé¿öϵÃÇл»µ½rootÓû§Ï²ÅÄÜʹÓã»±ÈÈç
[beinan@localhost ~]$ su - ×¢£ºÇл»µ½rootÓû§£¬²¢ÇÒÇл»µ½Æä¼ÒĿ¼£»
Password:
[root@localhost ~]#/sbin/grub ×¢£ºÓþø¶Ô·¾¶À´ÔËÐÐgrubÃüÁ
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1¡¢ÔÚLinuxÖУ¬GRUBÅäÖùý³ÌÖеݲװgrub-install£»
grub-install ÃüÁîÓкÎÓÃÄØ£¿Æäʵ¾ÍÊǰÑÎÒÃÇÇ°ÃæÒѾ°²×°µÄÈí¼þ°üÖеÄһЩÎļþ¸´ÖƵ½ /boot/grubÖУ»¶ÔÓÚа²×°GRUBÈí¼þ°üºó£¬Ò²ÊÇÒ»¸ö±Ø¾µÄ¹ý³Ì£»ÎÒÃÇÇ°ÃæËù˵µÄGRUBÈí¼þ°üµÄ°²×°£»¶øÏÖÔÚÎÒÃÇ˵µÄÊÇGRUBÅäÖõĹý³ÌÖеݲװ£»ËäÈ»ÔÚÑóÎÄÖж¼ÊÇinstall £¬µ«±í´ïµÄÒâ˼ÊDz»Ò»ÑùµÄ£»
ÎÒÃÇÊ×ÏÈÒªÔËÐÐ fdisk -l À´È·Èϵ½µ×ÊÇÓ²Å̵ıêʶ£»
Õâ¸ö¹ý³ÌÖ÷ÒªÊÇÈ·ÈÏÓ²Å̵ıêʶÊÇÄĸöµ÷±¸£¬µ½µ×ÊÇ/dev/hda»¹ÊÇ/dev/hdb »¹ÊÇÆäËüµÄ£»
ÒýÓÃ:[root@localhost ~]# fdisk -l
Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 970 7791493+ 7 HPFS/NTFS
/dev/hda2 971 9729 70356667+ 5 Extended
/dev/hda5 971 2915 15623181 b W95 FAT32
/dev/hda6 2916 4131 9767488+ 83 Linux
/dev/hda7 4132 5590 11719386 83 Linux
/dev/hda8 5591 6806 9767488+ 83 Linux
/dev/hda9 6807 9657 22900626 83 Linux
/dev/hda10 9658 9729 578308+ 82 Linux swap / Solaris
Èç¹ûͨ¹ýfdisk -l ³öÏÖÓÐ/dev/hda×ÖÑùµÄ£¬ÎÒÃǾÍÒªÓÃÏÂÃæµÄÃüÁîÀ´°²×°£»
ÒýÓÃ:[root@localhost ~]# grub-install /dev/hda
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install'.
(fd0) /dev/fd0
(hd0) /dev/hda
Èç¹ûÊÇÄúfdisk -l ³öÏÖµÄÓÐ/dev/hdbÄØ£¬ÄǾÍÈçÏÂÔËÐУ»
[root@localhost ~]# grub-install /dev/hdb
Èç¹û¼ÈÓÐ/dev/hdaºÍ/dev/hdb ¾Í°²×°µ½/dev/hdaÖУ»
[root@localhost ~]# grub-install /dev/hda
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[root@localhost ~]#grub-install --root-directory=/boot /dev/hda
[root@localhost ~]#grub-install --root-directory=/boot /dev/hdb
×¢½â£º¾ßÌåÊÇ/dev/hda»¹ÊÇ/dev/hdb£¬ÇëÒÔfdisk -l Ϊ׼£»Èç¹ûÁ½¸ö¶¼ÓУ¬¾Í¿´Äú°Ñ/boot·ÖÇøÊÇ·ÅÔÚµÚÒ»¿éÓ²ÅÌ»¹Êǵڶþ¿éÓ²ÅÌÉÏÁË£¬ÒÔʵ¼ÊÇé¿öΪ׼£»
2¡¢É趨GRUBµÄ/boot·ÖÇø²¢Ð´ÈëMBR£»£»
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[root@localhost ~]# grub
»á³öÏÖgrub>Ìáʾ·û£¬ÕâÊÇgrubÃüÁîÐÐģʽ £¬Èç¹ûÄÜÔÚ¿ª»úÖгöÏÖÌáʾ·û£¬Ã»ÓÐÒýµ¼²»ÆðÀ´µÄϵͳ£¬³ý·ÇÄúµÄÏµÍ³ÆÆ»µµÄ¼«ÎªÑÏÖØ¡£Èç¹û½ö½öÊÇGRUB±»ÆÆ»µÁË£¬GRUBÃüÁîÐÐÊÇÄÜÈòÙ×÷ϵͳÒýµ¼ÆðÀ´µÄ£»
½Ó×Å¿´Àý×Ó£¬ÎÒÃÇÒªÕÒµ½ /boot/grub/stage1µÄ£¬ÔÚgrub>ºóÃæÊäÈ룻
grub> find /boot/grub/stage1
(hd0,6)
(fd0) ×¢£ºÕâ¸öÊÇÈíÇý£»ÏÖÔÚºÜÉÙÓÃÈíÇýÁË£¬Èç¹ûÄúÓÐÕâ·½ÃæµÄÐèÒª£¬×Ô¼º¿´GRUBµÄDOC°É£»
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(hd0,6) ÕâÊÇ/bootËùÔڵķÖÇø£»²»ÒªÎó½âΪÊÇLinux µÄ/ËùÔڵķÖÇø£¬ÕâÊÇÖµµÃ×¢ÒâµÄ£»
(fd0) ×¢£ºÕâ¸öÊÇÈíÇý£»ÏÖÔÚºÜÉÙÓÃÈíÇýÁË£¬Èç¹ûÄúÓÐÕâ·½ÃæµÄÐèÒª£¬×Ô¼º¿´GRUBµÄDOC°É£»
grub>root (hd0,6) ×¢£ºÕâÊÇ/bootËùÔڵķÖÇø£»
grub>setup (hd0) ×¢£º°ÑGRUBдµ½MBRÉÏ£»
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ÉÏÃæÕâ²½ÖèÊǸù¾Ý find /boot/stage1¶øÀ´µÄ£¬×Ðϸ¿´Ò»Ï¾ÍÃ÷°×ÁË£»ÏÖÔÚÎÒÃÇÒ»°ã°²×°ºÜÉÙ»á°Ñ/boot·ÖÇøÁÐΪһ¸öµ¥¶ÀµÄ·ÖÇø£»²»¹ýÓеĵÜÐÖ¿ÉÄÜҲϲ»¶Õâô×ö£»ËùÒÔ»¹ÊÇÓбØÒªËµÒ»ÏÂΪºÃ£»
ËÄ¡¢GRUBµÄÅäÖÃÎļþµÄmenu.lstµÄд·¨£»
¶ÔÓÚGRUBÀ´Ëµ£¬Èç¹ûûÓÐÅäÖÃmenu.lst£¬ÎÞÂÛÊÇLinux°æ±¾µÄGRUB£¬»¹ÊÇWINGRUB£¬¶¼»áÓÐÃüÁîÐпÉÓã¬Í¨¹ýÃüÁîÐÐÊÇÒ»ÑùÄܰѲÙ×÷ϵͳÒýµ¼ÆðÀ´µÄ£»ÓÐЩµÜÐÖ×ÜÒÔΪmenu.lst ÅäÖôíÁË£¬ »òÕßÔÚ»úÆ÷Æô¶¯ºó³öÏÖgrub>ÃüÁîÐÐģʽ¾ÍÒªÖØÐ°²×°ÏµÍ³£¬Æäʵ¸ù±¾Ã»ÓÐÕâ¸ö±ØÒª£»Ö»ÒªÑ§»áGRUBµÄÃüÁîÐеÄÓ÷¨£¬¸ù±¾Ã»ÓбØÒªÖØ×°ÏµÍ³£»
menu.lst λÓÚ/boot/grubĿ¼ÖУ¬Ò²¾ÍÊÇ/boot/grub/menu.lst Îļþ£»Äú¿ÉÒÔÓÃvi»òÄúϲ»¶µÄ±à¼Æ÷À´±à¼Ëû£»Èç¹ûÄú²»»áÓÃvi£¬»¹ÊÇȥѧϰһϰɣ»¼òµ¥µÄÓ÷¨ÔõôҲµÃ»á£¬¶Ô²»¶Ô£¿±Ï¾¹Õâ¸öÎĵµ²»Êǽ²viµÄÓ÷¨µÄ£»
ÓеĵÜÐÖ»á˵£¬ÎÒûÓÐmenu.lstÔõô°ì£¿ÄǾʹ´½¨Ò»¸ö£»ÓÃÏÂÃæµÄÃüÁ
[root@localhost ~]# touch /boot/grub/menu.lst
È»ºóÎÒÃÇÔÙ×öÒ»¸ö/boot/grub/menu.lst µÄÁ´½Ó /boot/grub/grub.conf
[root@localhost ~]# cd /boot/grub
[root@localhost ~]# ln -s menu.lst grub.conf
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root (hd0,6)
kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
initrd /boot/initrd-2.6.11-1.1369_FC4.img
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ro ±íʾֻ¶Á£» root=LABEL=/ À´±íʾLinuxµÄ¸ùËù´¦µÄ·ÖÇø¡£LABEL=/ ÕâÊÇÓ²ÅÌ·ÖÇø¸ñʽ»¯ÎªÏàÓ¦ÎļþϵͳºóËù¼ÓµÄ±êÇ©£»Èç¹ûÄú²»Á˽âʲôÊDZêÇ©£¬Ò²¿ÉÒÔÖ±½ÓÒÔ/dev/hd[a-z]X »òÕß/dev/sd[a-z]XÀ´±íʾ£»¾Í¿´ÄúµÄLinuxÊǸù·ÖÇøÊÇÔÚÄĸö·ÖÇøÁË¡£±ÈÈçÎÒµÄÊÇÔÚ/dev/hda7 £¬ ÄÇÕâÀï¾Í¿ÉÒÔд³Éroot=/dev/hda7£»
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[root@localhost ~]# df -lh
Filesystem ÈÝÁ¿ ÒÑÓà ¿ÉÓà ÒÑÓÃ% ¹ÒÔØµã
/dev/hda7 11G 9.2G 1.2G 90% /
/dev/shm 236M 0 236M 0% /dev/shm
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[root@localhost ~]# ls /boot/vmlinuz*
/boot/vmlinuz-2.6.11-1.1369_FC4 ×¢£º¿´µ½ÄÚºËvmlinuzËù´¦µÄĿ¼£»
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kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
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[root@localhost ~]# ls /boot/initrd*
/boot/initrd-2.6.11-1.1369_FC4.img
Èç¹ûÊÇͨ¹ýdf -lh µÃÖª»ò²é¿´/etc/fstab Ò²ÐУ¬ µÃÖª/bootÊǶÀÁ¢µÄ·ÖÇø£»Õâʱinitrd Ó¦¸Ãд³É£»
initrd /initrd-2.6.11-1.1369_FC4.img
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[root@localhost ~]# df -lh
Filesystem ÈÝÁ¿ ÒÑÓà ¿ÉÓà ÒÑÓÃ% ¹ÒÔØµã
/dev/hda7 11G 9.2G 1.2G 90% /
/dev/shm 236M 0 236M 0% /dev/shm
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ÒýÓÃ:[root@localhost ~]# more /etc/fstab
# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/ / ext3 defaults 1 1
/dev/devpts /dev/pts devpts gid=5,mode=620 0 0
/dev/shm /dev/shm tmpfs defaults 0 0
/dev/proc /proc proc defaults 0 0
/dev/sys /sys sysfs defaults 0 0
LABEL=SWAP-hda1 swap swap defaults 0 0
/dev/hdc /media/cdrecorder auto pamconsole,exec,noauto,managed 0 0
¾¹ýÉÏÃæµÄdf -lh ºÍmore /etc/fstab µÄ¶ÔÕÕÖеÃÖª£¬/boot²¢ÊǶÀ´¦Ò»¸ö·ÖÇø£¬¶øÊǺÍ/ÔÚͬһ¸ö·ÖÇø£»Õâ¸öLinuxϵͳ°²×°ÔÚ/dev/hda7ÉÏ£¬Îļþϵͳ£¨´Ë·ÖÇø£©µÄ±êǩΪLABEL=/ £¬/bootÒ²ÊÇ´¦ÓÚ/dev/hda7 £¬/dev/hda7Ò²¿ÉÒÔ˵ÊÇ root (hd0,6)£»
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ÒýÓÃ:[root@localhost ~]# ls -lh /boot/vmlinuz*
-rw-r--r-- 1 root root 1.6M 2005-06-03 /boot/vmlinuz-2.6.11-1.1369_FC4
[root@localhost ~]# ls -lh /boot/initrd*
-rw-r--r-- 1 root root 1.1M 11ÔÂ 26 22:30 /boot/initrd-2.6.11-1.1369_FC4.img
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ÒýÓÃ:default=0
timeout=5
title FC4
root (hd0,6)
kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
initrd /boot/initrd-2.6.11-1.1369_FC4.img
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ÒýÓÃ:default=0
timeout=5
title FC4
root (hd0,6)
kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
initrd /boot/initrd-2.6.11-1.1369_FC4.img
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ÒýÓÃ:default=0
timeout=5
title FC4x
kernel (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
initrd (hd0,6)/boot/initrd-2.6.11-1.1369_FC4.img
×¢½â£º
title FC4x ×¢£º×Ô¼ºÎªÕâ¸öLinux Æð¸ö¼òµ¥µÄÃû£¬ÒÔtitle¿ªÍ·£¬È»ºóÒ»¸ö¿Õ¸ñ£¬ºóÃæ¾Í×Ô¼º·¢»Ó°É£¬FC4»òFC4x¶¼ÐУ»
kernel ¿Õ¸ñ (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ¿Õ¸ñ ro ¿Õ¸ñ root=/dev/hda7
kernel ÕâÐÐÕâÑùÀí½â kernel (bootËùÔڵķÖÇø)/boot/ÄÚºËÎļþ¼þÈ«³Æ ro root=Linux¸ùËùλÓڵķÖÇø»ò±êÇ©
initrd ¿Õ¸ñ (hd0,6)/boot/initrd-2.6.11-1.1369_FC4.img
initrd ÕâÐпÉÒÔÕâÑùÀí½â initrd (/bootËùÔڵķÖÇø)/boot/ÄÚºËÎļþÃûÈ«³Æ
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±ÈÈçÎÒÃDz鿴µ½df -lh µÃµ½µÄÊÇ
[root@localhost ~]# df -lh
Filesystem ÈÝÁ¿ ÒÑÓà ¿ÉÓà ÒÑÓÃ% ¹ÒÔØµã
/dev/hda6 200M 120M 80M 60% /boot
/dev/hda7 11G 9.2G 1.2G 90% /
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LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
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title FC4x
kernel (hd0,5)/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
initrd (hd0,5)/initrd-2.6.11-1.1369_FC4.img
ÒòΪLinuxµÄ¸ù·ÖÇøÊÇ/dev/hda7£¬Í¨¹ý/etc/fstabºÍdf -hµÄÄÚÈݵÃÖª±êǩΪ LABEL=/µÄ·ÖÇø¾ÍÊÇ/dev/hda7 £¬ËùÒÔÓУ»
title FC4x
kernel (hd0,5)/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
initrd (hd0,5)/initrd-2.6.11-1.1369_FC4.img
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ÒýÓÃ:grub> help
blocklist FILE boot
cat FILE chainloader [--force] FILE
clear color NORMAL [HIGHLIGHT]
configfile FILE device DRIVE DEVICE
displayapm displaymem
find FILENAME geometry DRIVE [CYLINDER HEAD SECTOR [
halt [--no-apm] help [--all] [PATTERN ...]
hide PARTITION initrd FILE [ARG ...]
kernel [--no-mem-option] [--type=TYPE] makeactive
map TO_DRIVE FROM_DRIVE md5crypt
module FILE [ARG ...] modulenounzip FILE [ARG ...]
pager [FLAG] partnew PART TYPE START LEN
parttype PART TYPE quit
reboot root [DEVICE [HDBIAS]]
rootnoverify [DEVICE [HDBIAS]] serial [--unit=UNIT] [--port=PORT] [--
setkey [TO_KEY FROM_KEY] setup [--prefix=DIR] [--stage2=STAGE2_
terminal [--dumb] [--no-echo] [--no-ed terminfo [--name=NAME --cursor-address
testvbe MODE unhide PARTITION
uppermem KBYTES vbeprobe [MODE]
Èç¹ûÐèÒªµÃµ½Ä³¸öÖ¸ÁîµÄ°ïÖú£¬¾ÍÔÚ help ºóÃæ¿ÕÒ»¸ñ£¬È»ºóÊäÈëÖ¸Á±ÈÈ磻
grub>help kernel
3£©catµÄÓ÷¨£»
catÖ¸ÁîÊÇÓÃÀ´²é¿´ÎļþÄÚÈݵģ¬ÓÐʱÎÒÃDz»ÖªµÀLinuxµÄ/boot·ÖÇø£¬ÒÔ¼°/¸ù·ÖÇøËùÔÚµÄλÖã¬Òª²é¿´/etc/fstabµÄÄÚÈÝÀ´µÃÖª£¬Õâʱ£¬ÎÒÃǾÍÒªÓõ½cat (hd[0-n],y)/etc/fstab À´»ñµÃÕâЩÄÚÈÝ£»×¢ÒâҪѧ»áÓÃtab¼üÃüÁî²¹ÆëµÄ¹¦ÄÜ£»
ÒýÓÃ:grub> cat ( °´tab ¼ü»á³öÀ´hd0»òhd1Ö®ÀàµÄ£»
grub> cat (hd0, ×¢£ºÊäÈëhd0,È»ºóÔÙ°´tab¼ü£»»á³öÀ´·ÖÇøÖ®ÀàµÄ£»
grub> cat (hd0,6)
Possible partitions are:
Partition num: 0, Filesystem type unknown, partition type 0x7
Partition num: 4, Filesystem type is fat, partition type 0xb
Partition num: 5, Filesystem type is reiserfs, partition type 0x83
Partition num: 6, Filesystem type is ext2fs, partition type 0x83
Partition num: 7, Filesystem type unknown, partition type 0x83
Partition num: 8, Filesystem type is reiserfs, partition type 0x83
Partition num: 9, Filesystem type unknown, partition type 0x82
grub> cat (hd0,6)/etc/fstab ×¢£º±ÈÈçÎÒÏë²é¿´Ò»Ï (hd0,6)/etc/fstabµÄÄÚÈݾÍÕâÑùÊäÈ룻
LABEL=/ / ext3 defaults 1 1
/dev/devpts /dev/pts devpts gid=5,mode=620 0 0
/dev/shm /dev/shm tmpfs defaults 0 0
/dev/proc /proc proc defaults 0 0
/dev/sys /sys sysfs defaults 0 0
LABEL=SWAP-hda1 swap swap defaults 0 0
/dev/hdc /media/cdrecorder auto pamconsole,exec,noauto,
managed 0 0
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Ö÷Òª²é¿´/etc/fstabÖеÄÄÚÈÝ£¬Ö÷ÒªÊÇLinuxµÄ/·ÖÇø¼°/bootÊÇ·ñÊǶÀÁ¢µÄ·ÖÇø£»Èç¹ûûÓÐ/bootÀàËÆµÄÐУ¬Ö¤Ã÷/bootºÍLinuxµÄ/´¦ÓÚͬһ¸öÓ²ÅÌ·ÖÇø£»±ÈÈçÉÏÃæµÄÀý×ÓÖÐLABEL=/ ÕâÐÐÊǼ«ÎªÖØÒªµÄ£»ËµÃ÷Linuxϵͳ¾Í°²ÔÚ±êǩΪLABEL=/µÄ·ÖÇøÖУ»
Èç¹ûÄúµÄLinuxϵͳ/bootºÍ/ûÓÐλÓÚͬһ¸ö·ÖÇø£¬¿ÉÄÜcat (hd[a-n],y) ²éµ½µÄÊÇÀàËÆÏÂÃæµÄ£»
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
4£© root (hd[0-n,y) Ö¸ÁîÀ´Ö¸¶¨/bootËùÔڵķÖÇø£»
ÆäʵÕâ¸öroot (hd[0,n],y)ÊÇ¿ÉÒÔÊ¡ÂԵģ¬Èç¹ûÊ¡ÂÔÁË£¬ÎÒÃÇÒªÔÚkerenl ÃüÁîÖÐÖ¸¶¨£»ÎÒÃÇÇ°ÃæÒѾ˵¹ý (hd[0-n],y) Ó²ÅÌ·ÖÇøµÄ±íʾ·½·¨µÄÓÃ;£»Ö÷ÒªÊÇÓÃÀ´Ö¸¶¨ /bootËùÔڵķÖÇø£»
±ÈÈçÎÒÃÇÈ·ÈÏ/bootºÍ (hd0,6)£¬ËùÒԾͿÉÒÔÕâÑùÀ´ÊäÈëroot (hd0,6)
grub> root (hd0,6)
Èç¹û·¢ÏÖ²»¶Ô£¬¿ÉÒÔÖØÐÂÀ´¹ý£»Ã»ÓÐʲô´ó²»Á˵ģ»
5£© kernel Ö¸ÁÓÃÀ´Ö¸¶¨LinuxµÄÄںˣ¬¼°/ËùÔڵķÖÇø£»
kernel Õâ¸öÖ¸Áî¿ÉÄܳõѧÕßÓеãÅ£¬²»ÖªµÀÄÚºËÔÚÄĸö·ÖÇø£¬¼°ÄÚºËÎļþÃûµÄÈ«³ÆÊÇʲô¡£²»ÒªÍü¼Çtab¼üµÄÃüÁî²¹ÆëµÄÓ¦Óã»
Èç¹ûÎÒÃÇÒѾͨ¹ýroot (hd[0-n],y) Ö¸¶¨ÁË/bootËùÔڵķÖÇø£¬Óï·¨ÓÐÁ½¸ö£º
Èç¹û/bootºÍLinuxµÄ/λÓÚͬһ¸ö·ÖÇø£¬Ó¦¸ÃÊÇÏÂÃæµÄÒ»ÖÖ¸ñʽ£»
kernel /boot/vmlinuzÔÚÕâÀï°´tab¼üÀ´²¹Æë£¬¾Í¿´µ½ÄÚºËÈ«³ÆÁË ro root=/dev/hd[a-z]X
Èç¹û/bootÓÐ×Ô¼º¶ÀÁ¢µÄ·ÖÇø£¬Ó¦¸ÃÊÇ£»
kernel /vmlinuzÔÚÕâÀï°´tab¼üÀ´²¹Æë£¬¾Í¿´µ½ÄÚºËÈ«³ÆÁË ro root=/dev/hd[a-z]X
ÔÚÕâÀï root=/dev/hd[a-z]X ÊÇLinux µÄ/¸ùËùλÓڵķÖÇø£¬Èç¹û²»ÖªµÀÊÇÄĸö·ÖÇø£¬¾ÍÓÃtab³öÀ´µÄÀ´¼ÆË㣬һ¸öÒ»¸öµÄ³¢ÊÔ£»»òÓÃcat (hd[0-n],y)/etc/fstab Öеõ½LinuxµÄ/ËùÔڵķÖÇø»ò·ÖÇøµÄ±êÇ©£»
ÒýÓÃ:grub> kernel /boot/ÔÚÕâÀï°´tab¼ü£»ÕâÑù¾ÍÁгö/bootÖеÄÎļþÁË£»
Possible files are: grub initrd-2.6.11-1.1369_FC4.img System.map-2.6.11-1.1369
_FC4 config-2.6.11-1.1369_FC4 vmlinuz-2.6.11-1.1369_FC4 grubBAK memtest86+-1.55
.1 xen-syms xen.gz
grub> kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
[Linux-bzImage, setup=0x1e00, size=0x18e473]
×¢½â£º root=LABEL=/ ÊÇLinuxµÄ/ËùÔڵķÖÇøµÄÎļþϵͳµÄ±êÇ©£»Èç¹ûÄúÖªµÀLinuxµÄ/ÔÚÄĸö¾ßÌåµÄ·ÖÇø£¬ÓÃroot=/dev/hd[a-z]XÀ´Ö¸¶¨Ò²ÐС£±ÈÈçÏÂÃæµÄÒ»ÐÐÒ²ÊÇ¿ÉÒԵģ»
grub> kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
Ò²¿ÉÒÔ°Ñ/bootËùÔڵķÖÇøµÄÖ¸¶¨ root (hd[0-n],y)ÕâÐÐÊ¡µô£¬Ö±½ÓÔÚkernel ÖÐÖ¸¶¨/bootËùÔڵķÖÇø£»ËùÒÔ¾ÍÔÚÏÂÃæµÄÓï·¨£»
Èç¹ûÊÇ/bootºÍLinuxµÄ¸ùͬ´¦Ò»¸ö·ÖÇø£»
kernel (hd[0-n],y)/boot/vmlinuz ro root=/dev/hd[a-z]X
±ÈÈ磺
grub>kernel
Èç¹ûÊÇ/bootºÍLinuxËùÔڵĸù²»ÔÚÒ»¸ö·ÖÇø£»ÔòÊÇ£»
kernel (hd[0-n],y)/vmlinuz ro root=/dev/hd[a-z]X
grub> kernel (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
[Linux-bzImage, setup=0x1e00, size=0x18e473]
»òÏÂÃæµÄÊäÈ룬ÒÔcat ³ö/etc/fstabÄÚÈÝΪ׼£»
grub> kernel (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
[Linux-bzImage, setup=0x1e00, size=0x18e473]
6£©initrd ÃüÁîÐÐÀ´Ö¸¶¨initrdÎļþ£»
grub> initrd /boot/initrdÔÚÕâÀïtab À´²¹Æë£»
grub> initrd /boot/initrd-2.6.11-1.1369_FC4.img
[Linux-initrd @ 0x2e1000, 0x10e685 bytes]
Èç¹û/bootÊǶÀÁ¢µÄÒ»¸ö·ÖÇø£¬Ó¦¸ÃÊÇÈçÏÂÑù×ÓµÄÓï·¨£»±ÈÈçÏÂÃæµÄ£»
grub> initrd /initrdÔÚÕâÀïtab À´²¹Æë£»
grub> initrd /initrd-2.6.11-1.1369_FC4.img
[Linux-initrd @ 0x2e1000, 0x10e685 bytes]
7£©boot Òýµ¼ÏµÍ³£»
grub>boot
Ç°ÃæµÄ¼¸¸ö²½Ö趼ŪºÃ ¡£¾Í½øÈëÒýµ¼£»³¢ÊÔһϾÍÖªµÀÁË¡£¡£
8£©Òýµ¼LinuxϵͳʵÀýÈ«³Ì»Ø·Å£»
ʵÀý£º/bootºÍLinuxµÄ/´¦ÓÚͬһ¸öÓ²ÅÌ·ÖÇø£»
ÒýÓÃ:grub> cat (hd0,6)/etc/fstab
# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/ / ext3 defaults 1 1
/dev/devpts /dev/pts devpts gid=5,mode=620 0 0
/dev/shm /dev/shm tmpfs defaults 0 0
/dev/proc /proc proc defaults 0 0
/dev/sys /sys sysfs defaults 0 0
LABEL=SWAP-hda1 swap swap defaults 0 0
/dev/hdc /media/cdrecorder auto pamconsole,exec,noauto,managed 0 0
grub> root (hd0,6)
Filesystem type is ext2fs, partition type 0x83
grub> kernel /boot/ÔÚÕâÀï°´tab²¹Æë£¬È«Áгö/bootËùÓеÄÎļþ£»
Possible files are: grub initrd-2.6.11-1.1369_FC4.img System.map-2.6.11-1.1369_FC4 config-2.6.11-1.1369_FC4 vmlinuz-2.6.11-1.1369_FC4
memtest86+-1.55.1 xen-syms xen.gz
grub> kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7 ×¢£ºÊäÈë
[Linux-bzImage, setup=0x1e00, size=0x18e473]
grub> initrd /boot/ÔÚÕâÀï°´tab²¹Æë
Possible files are: grub initrd-2.6.11-1.1369_FC4.img System.map-2.6.11-1.1369_FC4 config-2.6.11-1.1369_FC4 vmlinuz-2.6.11-1.1369_FC4
memtest86+-1.55.1 xen-syms xen.gz
grub> initrd /boot/initrd-2.6.11-1.1369_FC4.img ×¢;ÊäÈëintrdÎļþÃûµÄÈ«Ãû£»
[Linux-initrd @ 0x2e1000, 0x10e685 bytes]
grub> boot
ÎÒÃÇÖ¸¶¨LinuxµÄ¸ùʱ£¬¿ÉÒÔÓÃcat³öÀ´µÄfstabµÄÄÚÈÝÖÐLinuxµÄ/·ÖÇøÎļþϵͳ±êÇ©À´Ìæ´ú£»Ò²¾ÍÊÇkernel ÄÇÐÐÖÐ root=/dev/hd[a-z]X£»
ÒýÓÃ:grub> cat (hd0,6)/etc/fstab
# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/ / ext3 defaults 1 1
/dev/devpts /dev/pts devpts gid=5,mode=620 0 0
/dev/shm /dev/shm tmpfs defaults 0 0
/dev/proc /proc proc defaults 0 0
/dev/sys /sys sysfs defaults 0 0
LABEL=SWAP-hda1 swap swap defaults 0 0
/dev/hdc /media/cdrecorder auto pamconsole,exec,noauto,managed 0 0
grub> root (hd0,6)
Filesystem type is ext2fs, partition type 0x83
grub> kernel /boot/ÔÚÕâÀï°´tab²¹Æë£¬È«Áгö/bootËùÓеÄÎļþ£»
Possible files are: grub initrd-2.6.11-1.1369_FC4.img System.map-2.6.11-1.1369_FC4 config-2.6.11-1.1369_FC4 vmlinuz-2.6.11-1.1369_FC4
memtest86+-1.55.1 xen-syms xen.gz
grub> kernel /boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
[Linux-bzImage, setup=0x1e00, size=0x18e473]
grub> initrd /boot/ÔÚÕâÀï°´tab²¹Æë
Possible files are: grub initrd-2.6.11-1.1369_FC4.img System.map-2.6.11-1.1369_FC4 config-2.6.11-1.1369_FC4 vmlinuz-2.6.11-1.1369_FC4 grubBAK
memtest86+-1.55.1 xen-syms xen.gz
grub> initrd /boot/initrd-2.6.11-1.1369_FC4.img ×¢;ÊäÈëintrdÎļþÃûµÄÈ«Ãû£»
[Linux-initrd @ 0x2e1000, 0x10e685 bytes]
grub> boot
Èç¹ûÊÇ/bootºÍLinuxµÄ¸ù·ÖÇø²»ÔÚͬһ¸ö·ÖÇø£¬Òª°ÑkernelºÍinitrd Ö¸ÁîÖеÄ/bootÈ¥µô£¬Ò²¾ÍÊÇ/vmlinuzMMMMMM »ò /initrdNNNN
Ò²¿ÉÒÔ²»ÓÃroot (hd[0-n]À´Ö¸¶¨/bootËùÔÚ·ÖÇø£¬ÒªÔÚkernel ºÍinitrd ÖÐÖ¸¶¨£»±ÈÈçLinuxµÄ/¸ùËùλÓڵķÖÇøºÍ/bootËùλÓڵķÖÇø¶¼ÊÇ(hd0,6)£¬²¢ÇÒÎÒÃÇcat³öÀ´µÄ/etc/fstabÊÇLinuxµÄ/¸ù·ÖÇøµÄÎļþϵͳµÄ±êǩΪLABEL=/£¬Òýµ¼²Ù×÷ϵͳµÄÀý×ÓÈçÏ£»
ÒýÓÃ:grub>kernel (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
grub>initrd (hd0,6)/boot/initrd-2.6.11-1.1369_FC4.img
grub>boot
»ò
ÒýÓÃ:grub>kernel (hd0,6)/boot/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
grub>initrd (hd0,6)/boot/initrd-2.6.11-1.1369_FC4.img
grub>boot
Èç¹û/bootλÓÚ /dev/hda6£¬Ò²¾ÍÊÇ(hd0,5)£¬LinuxµÄ¸ù/λÓÚ·ÖÇø/dev/hda7£¬²¢ÇÒÎÒÃÇcat ³öÀ´µÄ/etc/fstab ÖÐ/·ÖÇøµÄ±êǩΪ LABEL=/¡£ÏÂÃæµÄÁ½ÖÖ·½·¨¶¼¿ÉÒÔÒýµ¼£»
ÒýÓÃ:grub>kernel (hd0,5)/vmlinuz-2.6.11-1.1369_FC4 ro root=LABEL=/
grub>initrd (hd0,5)/initrd-2.6.11-1.1369_FC4.img
grub>boot
»ò
ÒýÓÃ:grub>kernel (hd0,5)/vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/hda7
grub>initrd (hd0,5)/initrd-2.6.11-1.1369_FC4.img
grub>boot
Áù¡¢Í¨¹ýGRUBÒýµ¼Windows²Ù×÷ϵͳ£»
1¡¢Í¨¹ý±à¼ menu.lst À´Òýµ¼Windows ϵͳ£»
Èç¹ûÄúµÄWindowsËù´¦ÓڵķÖÇøÔÚ(hd0,0)£¬¿ÉÒÔÔÚmenu.lst ¼ÓÈçϵÄÒ»¶Î¾ÍÄÜÒýµ¼ÆðÀ´ÁË£»
title WinXp
rootnoverify (hd0,0)
chainloader +1
Èç¹ûÄúµÄ»úÆ÷ÓÐÁ½¿éÓ²ÅÌ£¬¶øWindows λÓÚµÚ¶þ¸öÓ²Å̵ĵÚÒ»¸ö·ÖÇø£¬Ò²¾ÍÊÇ(hd1,0)
Äú¿ÉÒÔÓÃgrubµÄmapÀ´Ö¸ÁîÀ´²Ù×÷°ÑÁ½¿éÓ²Å̵ÄÐòÁжԵ÷£¬ÕâÑù¾Í²»ÓÃÔÚBIOSÖÐÉèÖÃÁË£»ÔÚmenu.lstÖмÓÈçϵÄÄÚÈÝ£¬±ÈÈçÏÂÃæµÄ£»
title WinXp
map (hd0) (hd1)
map (hd1) (hd0)
rootnoverify (hd0,0)
chainloader +1
makeactive
Èç¹ûWindowsµÄ·ÖÇø²»Î»ÓÚÓ²Å̵ĵÚÒ»¸ö·ÖÇøÔõô°ìÄØ£¿±ÈÈçÔÚ(hd0,2)£»
Õâ¸öÒ²ºÃ°ì°É£¬°Ñrootnoverify ÕâÐеÄ(hd0,0)¸ÄΪ (hd0,2)
title WinXp
rootnoverify (hd0,2)
chainloader +1
makeactive
Èç¹ûWindowsµÄÔÚµÚ¶þ¸öÓ²Å̵Äij¸ö·ÖÇø£¬±ÈÈç˵ÊÇλÓÚ(hd1,2)£¬ÔòÒªÓõ½mapÖ¸Á
title WinXp
map (hd0) (hd1)
map (hd1) (hd0)
rootnoverify (hd1,2)
chainloader +1
makeactive
Èç¹ûÓжà¸öWindows ϵͳ£¬Ôõô²ÅÄÜÒýµ¼³öÀ´ÄØ£¿Ó¦¸ÃÓÃhide ºÍunhideÖ¸Áî²Ù×÷£»±ÈÈçÎÒÃǰ²×°ÁËÁ½¸öWindows £¬Ò»¸öÊÇλÓÚ(hd0,0)µÄwindows 98 £¬ÁíÒ»¸öÊǰ²×°µÄÊÇλÓÚ(hd0,1)µÄWindowsXP£»ÕâʱÎÒÃǾÍÒªÓõ½hideÖ¸ÁîÁË£»
title Win98
unhide (hd0,0)
hide (hd0,1)
rootnoverify (hd0,0)
chainloader +1
makeactive
title WinXP
unhide (hd0,1)
hide (hd0,0)
rootnoverify (hd0,1)
chainloader +1
makeactive
2¡¢Í¨¹ýGRUBÖ¸ÁîÀ´Òýµ¼Windows £»
ÆäʵÎÒÃÇ»áдmenu.lstÁË£¬ÔÚmenu.lstÖеijýÁËtitleÍ⣬¶¼ÊÇÒ»ÌõÌõÖ¸ÁÈç¹ûÎÒÃÇÆô¶¯Windows £¬Ö»ÊÇÊäÈëÖ¸Áî¾ÍÐÐÁË£»
±ÈÈç WindowsµÄ·ÖÇøÔÚ (hd0,0)£¬ÎÒÃÇÔÚ¿ª»úºó£¬°´ctrl+c £¬½øÈëGRUBµÄÃüÁîģʽ£»¾Í¿ÉÒÔÓÃÏÂÃæµÄ
grub> rootnoverify (hd0,0)
grub> chainloader +1
grub> boot
ÆäËüͬÀí... ...
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Æä´Î£ºÒªÖ´ÐÐgrub £¬È»ºóͨ¹ý root (hd[0-n],y)À´Ö¸¶¨/bootËùλÓڵķÖÇø£¬È»ºó½Ó×ÅÖ´ÐÐ setup (hd0)£¬ÕâÑù¾ÍдÈëMBRÁË£¬±ÈÈçÏÂÃæµÄÀý×Ó£»
grub>root (hd0,6)
grub>setup (hd0)
grub>quit
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дºÃºó»¹Òª½¨Ò»¸ögrub.confµÄÁ´½Ó£¬ÈçÏ£º
[root@localhost ~]# cd /boot/grub
[root@localhost grub]# ln -s menu.lst grub.conf
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