重新编译内核后,grub怎么弄?

cwwhy

重新编译原内核,我的grub修改后......
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,10)
#          kernel /vmlinuz-version ro root=/dev/hdc12
#          initrd /initrd-version.img
#boot=/dev/hdc
default=0
timeout=10
splashimage=(hd0,9)/grub/splash.xpm
title Red Hat Linux (2.4.20-
        root (hd0,9)
        kernel /vmlinuz-2.4.20-8 ro root=LABEL=/
        initrd /initrd-2.4.20-8.img
title Red Hat Linux hy
        root (hd0,9)
        kernel /vmlinuz-2.4.20-8custom ro root=/dev/hdc9
title windows xp
        rootnoverify (hd0,0)
        chainloader +1

起动不了
我把kernel /vmlinuz-2.4.20-8custom ro root=/dev/hdc9 改为
kernel /vmlinuz-2.4.20-8custom ro
能起动,但是boot文件夹里就只有一个什么kerner.h的文件  什么也没有了

Dragonfly

after u boot,
run command 'df' and post the output here.

cwwhy

[root@hy root]# df
文件系统               1K-块        已用     可用 已用% 挂载点
/dev/hdc11             3763372   2990016    582188  84% /
/dev/hdc10              101089     12108     83762  13% /boot
none                     63016         0     63016   0% /dev/shm
/dev/hdc5              7800336   7202008    598328  93% /mnt/d
/dev/hdc6              7800336   6912956    887380  89% /mnt/e
/dev/hdc7              9339568   8980644    358924  97% /mnt/f
/dev/hdc8              3064426   1442682   1621744  48% /mnt/g


我换了root=/dev/hdc10 或11,12都不行,提示说找不到文件.

Dragonfly

anyway the /dev/hdc9 is wrong,
can u change

title Red Hat Linux hy
root (hd0,9)
kernel /vmlinuz-2.4.20-8custom ro root=/dev/hdc9

to

title Red Hat Linux hy
root (hd0,0)
kernel /vmlinuz-2.4.20-8custom ro root=/dev/hdc11
?

u can check the grub posts in installation branch to know more info.

cwwhy

果然好用,谢谢了!

Dragonfly

welcome.      

风继续吹

为什么root（hd×，×）可以随意改啊？

Dragonfly

info grub, or read grub doc.