grub不能引导ubuntu，急急急

[lijianzhao]

我C盘装的winxp，之后用wubi在D盘装的Ubuntu8.10。装好之后运行很正常，今天突然就不能引导ubuntu了，在选择系统的选择ubuntu后，就会进入grub 命令行格式，显示如下内容
minimal bash-like line editing is supported ,for the first word ,tab lists possible command completions ,anywher else Tab lists the possible completions of a device /filename
grub >
之后我输入ls命令显示的都是c盘根目录下的东西
grub > find /boot/grub/stage1
提示找不到此文件
grub > find /boot/grub/menu.lst
也是提示无法找到
grub > root （hd0, 按TAB
提示有0，4，5，6几个逻辑分区能用，我一一试过都不能启动
grub > root （hd1, 按TAB
提示此分区不存在
之后，我用ubuntu7.10 liveCD（因为手上没有8.10）启动，在终端上执行 以上操作，结果一样。
急啊，谢谢了

[some]

我也不是太懂 呵呵
说下我自己的看法

/boot是否被单独分区 不是的话应该用find /boot/grub/stage1
你可以试试把你引导时的那几项都发上来 让大家看看 也许有帮助

[xiajiebuhui]

我也不是太懂 呵呵
说下我自己的看法

/boot是否被单独分区 不是的话应该用find /boot/grub/stage1
你可以试试把你引导时的那几项都发上来 让大家看看 也许有帮助

wubi方式，不涉及任何分区问题吧。
不过倒是因该查看一下你的menu.lst文件或许有帮助。

[shanliang8008]

在D盘安装ubuntu 。？wubi安装？

[lijianzhao]

嗯，用wubi装在D盘了
用ubuntu7.10 liveCD 启动后看见D盘下
found.000/dir0000.chk/boot/grub/menu.lst
内容如下

#menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 10

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
#hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=C248B61548B60865 loop=/ubuntu/disks/root.disk ro ROOTFLAGS=syncio

## default grub root device
## e.g. groot=(hd0,0)
# groot=()/ubuntu/disks

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu 8.10, kernel 2.6.27-7-generic
root ()/ubuntu/disks
kernel /boot/vmlinuz-2.6.27-7-generic root=UUID=C248B61548B60865 loop=/ubuntu/disks/root.disk ro ROOTFLAGS=syncio quiet splash
initrd /boot/initrd.img-2.6.27-7-generic

title Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)
root ()/ubuntu/disks
kernel /boot/vmlinuz-2.6.27-7-generic root=UUID=C248B61548B60865 loop=/ubuntu/disks/root.disk ro ROOTFLAGS=syncio single
initrd /boot/initrd.img-2.6.27-7-generic

title Ubuntu 8.10, memtest86+
root ()/ubuntu/disks
kernel /boot/memtest86+.bin

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title Microsoft Windows XP Professional
root (hd0,0)
savedefault
chainloader +1

看见D盘下
ubuntu/winboot/menu.lst
内容如下

debug off
hiddenmenu
default 0
timeout 0
fallback 1

title find /ubuntu/disks/boot/grub/menu.lst
find --set-root --ignore-floppies /ubuntu/disks/boot/grub/menu.lst
configfile /ubuntu/disks/boot/grub/menu.lst

title find /ubuntu/install/boot/grub/menu.lst
fallback 2
find --set-root --ignore-floppies /ubuntu/install/boot/grub/menu.lst
configfile /ubuntu/install/boot/grub/menu.lst

title find /menu.lst
fallback 3
find --set-root --ignore-floppies /menu.lst
configfile /menu.lst

title find /boot/grub/menu.lst
fallback 4
find --set-root --ignore-floppies /boot/grub/menu.lst
configfile /boot/grub/menu.lst

title find /grub/menu.lst
fallback 5
find --set-root --ignore-floppies /grub/menu.lst
configfile /grub/menu.lst

title commandline
commandline

title reboot
reboot

title halt
halt
在windows下只能看见D:\ubuntu\winboot\menu.lst 内容同上

[xiajiebuhui]

越发不明白grub了。
没有重要文件的话重装吧，反正对于wubi来讲到windows的控制面板就可以搞定的。
对于wubi我没有什么接触，等待其他同学来吧

[lijianzhao]

谢谢大家的帮忙，但是还没搞定啊
重装，太麻烦了！我在做嵌入式，好不容易才搭好环境

[lijianzhao]

难道没人知道吗，还是小弟没写明白啊，谢谢了！

[snake1st]

你写的确实不是太明白，不过我也碰到过类似问题，我的是／boot分成ext4了 导致grub无法引导 你看看你是不是也是同样的 问题～
我也新人～也发挥下ubuntu精神 呵呵

[smallapple]

又是五笔安装的....
好象是不正常关机引起的错误
把D盘下/found.000/dir0000.chk/boot/grub/menu.lst复制到D盘下/ubuntu/disks/boot/grub/ 试试

[wangzc2009]

权限问题
请进入的时候打sudo grub进入

[lijianzhao]

是sudo grub进入的。
在D盘没有/ubuntu/disks/boot/grub/这个目录啊！

[冲浪板]

try lilo;
这是个机会

[smallapple]

是sudo grub进入的。
在D盘没有/ubuntu/disks/boot/grub/这个目录啊！

那/ubuntu/disks下还有什么东西？

[shanliang8008]

做嵌入式还wubi安装 真晕