onlgrub> root(hd0,2) setup(hd0) online sos!!!/grub recovery

hungry1526 · #1

grub> root(hd0,2) setup(hd0)

Error 27: Unrecognized command

or/////////////////////////////////////////////////////////

grub> root(hd0,2)

Error 27: Unrecognized command

grub> setup(hd0)

Error 27: Unrecognized command

/////////////////////////////////////////////////////////////////////////////////////

my menu.lst is as follows:

/////////////////////////////////////////////////////////////////////////////////////
## ## End Default Options ##

title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,2)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=d7d6abb1-b26c-4c9f-bf2d-d1fb368bef8a ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet

title Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
root (hd0,2)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=d7d6abb1-b26c-4c9f-bf2d-d1fb368bef8a ro single
initrd /boot/initrd.img-2.6.22-14-generic

title Ubuntu 7.10, memtest86+
root (hd0,2)
kernel /boot/memtest86+.bin
quiet

### 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
makeactive
chainloader +1

///////////////////////////////////////////////////////////////////[/b]

hungry1526 · #2

grub loading , please wait ....
error 17
不能进入ubuntu

this is the initial situation
and i have copied linux.lnx to c:\
and also change the boot.ini

bu chong yi xia~~~~

who can help me?????

avauntage · #3

grub> root(hd0,2)

Error 27: Unrecognized command

grub> setup(hd0)

Error 27: Unrecognized command

在敲完root这4个字母的时候，按一下Tab键，你就会发现这个命令是root (hd0,2)，中间有一个空格的。
在linux的终端中，要经常使用Tab键，会有意外收获的。

ccbwx · #4

root(hd0,2)
应该是
root (hd0,2)
中间有空格的！！！！

hungry1526 · #5

噢。。这个问题我解决了
但是新的问题又出现了。。。

在完成了上述的步骤以后
重启发现GRUB出现了但是点进去显示
error 17:cannot mount selected partition
请问是什么原因?

avauntage · #6

这个root(hd0,2) 的意思是指/boot在第3个分区上，不知你的分区如何分的？
你需要先查找一下/boot在哪里才行。步骤如下：

1、用ubuntu的安装盘启动。
2、打开一个终端
3、运行grub

代码：全选

sudo grub

4、查找/boot在哪里。

代码：全选

grub> find /boot/grub/stage1

(hd0,2) 这是我的结果。
5、设置grub

代码：全选

root (hd0,2) 
setup (hd0)

注意root和setup命令后都有一空格。
出现下面这些提示就说明安装成功了。

Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0)"... 15 sectors are embedded.
succeeded
Running "install /boot/grub/stage1 (hd0) (hd0)1+15 p (hd0,2)/boot/grub/stage2
/boot/grub/menu.lst"... succeeded
Done.

hungry1526 · #7

first thank you for your help!

///////////////////////////////////////////////////////////////////////////////////////////////////////////
grub> root (hd0,
Possible partitions are:
Partition num: 0, Filesystem type is fat, partition type 0xc
Partition num: 2, Filesystem type unknown, partition type 0x82
Partition num: 3, Filesystem type is ext2fs, partition type 0x83
Partition num: 4, Filesystem type unknown, partition type 0x7
Partition num: 5, Filesystem type unknown, partition type 0x7

grub> root (hd0,3)

grub> setup (hd0)
Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0)"... 17 sectors are embedded.
succeeded
Running "install /boot/grub/stage1 (hd0) (hd0)1+17 p (hd0,3)/boot/grub/stage2
/boot/grub/menu.lst"... succeeded
Done.

grub>

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
any mistakes?
but error 17 still regins!

hungry1526 · #8

grub> find /boot/grub/stage1
(hd0,3)