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被我自己稀里糊涂地解决了。但是我也说不上为什么。
没出问题的那台机器的grub.conf如下:
default=2
timeout=5
splashimage=(hd1,5)/grub/splash.xpm.gz
hiddenmenu
title RHEL AS 4 U4 64-bit (2.6.9-42.ELsmp)
root (hd1,5)
kernel /vmlinuz-2.6.9-42.ELsmp ro root=LABEL=/1 rhgb quiet
initrd /initrd-2.6.9-42.ELsmp.img
title RHEL AS 4 U4 64-bit-up (2.6.9-42.EL)
root (hd1,5)
kernel /vmlinuz-2.6.9-42.EL ro root=LABEL=/1 rhgb quiet
initrd /initrd-2.6.9-42.EL.img
title RHEL AS 4 U2 32-bit (2.6.9-22.ELsmp)
root (hd1,0)
kernel /vmlinuz-2.6.9-22.ELsmp ro root=LABEL=/
initrd /initrd-2.6.9-22.ELsmp.img
title RHEL AS 4 U2 32-bit-up (2.6.9-22.EL)
root (hd1,0)
kernel /vmlinuz-2.6.9-22.EL ro root=LABEL=/
initrd /initrd-2.6.9-22.EL.img
title Windows XP Pro
rootnoverify (hd0,0)
chainloader +1
先前有问题,后被调整好的那台机器的grub.conf如下:
default=1
timeout=5
splashimage=(hd1,5)/grub/splash.xpm.gz
hiddenmenu
title RHEL AS 4 U4 64-bit (2.6.9-42.ELsmp)
root (hd1,5)
kernel /vmlinuz-2.6.9-42.ELsmp ro root=LABEL=/1 rhgb quiet
initrd /initrd-2.6.9-42.ELsmp.img
#title RHEL AS 4 U4 64-bit-up (2.6.9-42.EL)
# root (hd1,5)
# kernel /vmlinuz-2.6.9-42.EL ro root=LABEL=/1 rhgb quiet
# initrd /initrd-2.6.9-42.EL.img
title RHEL AS 4 U2 32-bit (2.6.9-22.ELsmp)
root (hd1,0)
kernel /vmlinuz-2.6.9-22.ELsmp ro root=LABEL=/
initrd /initrd-2.6.9-22.ELsmp.img
#title RHEL AS 4 U2 32-bit-up (2.6.9-22.EL)
# root (hd1,0)
# kernel /vmlinuz-2.6.9-22.EL ro root=LABEL=/
# initrd /initrd-2.6.9-22.EL.img
title Windows XP Pro
rootnoverify (hd0,0)
chainloader +1
其实区别就是,我把出问题的那台机器的grob.conf中64位的up和32位的up封掉了。不过不封掉就是引导不起32位的版本,就是把32位的引导菜单提到最前面也不行。好像这里的菜单项挺讲究顺序的。次序乱了不行,多一个少一个也不行。呵呵,不知道为什么。
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