20CN网络安全小组论坛 - UNIX系统 - [求助]恢复LINUX的双引导

论坛: UNIX系统标题: [求助]恢复LINUX的双引导

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作者: kof97 [kof97]

论坛用户

双系统
C WIN2003
D 删除后装RED HAT 9.0
用GRUB实现引导

今天C盘的系统完蛋呢~重装呢一下WIN2003后引导菜单没有了~
怎么找回原来的RED HAT 9，恢复引导？

谢谢~

地主发表时间: 04-03-02 04:12

回复: lovejun [lovejun]

论坛用户

我的是2000server，也出现这样的问题
但在xp下装的 liunx7。3重起后也看不到linux的引导菜单

B1层发表时间: 04-03-02 08:58

回复: benimas [benimas]

论坛用户

软盘引导重装GRUB应该就没问题了`

B2层发表时间: 04-03-02 10:29

回复: kof97 [kof97]

论坛用户

大哥~我没有做软盘的启动盘啊

用RED HAT 光盘可以吗？

B3层发表时间: 04-03-02 16:44

回复: yy [yy]

论坛用户

同上

B4层发表时间: 04-03-04 11:59

回复: flavor [flavor]

论坛用户

用光盘可以。

选择升级安装，然后选择重新安装grub

B5层发表时间: 04-03-05 22:06

回复: tomkity [tomkity]

论坛用户

Project Name: GRUB for DOS
Definition: A GRUB build for DOS with extensions for disk drive emulation.
Current Version: 0.2.0
Author: Tinybit(tinybit@163.net)

File Format: DOS EXE executable

Purpose: Launch GRUB boot loader from within DOS

Circumstanced Use: in CONFIG.SYS or AUTOEXEC.BAT

Ability: Boot any installed operating system on your PC

Limitations: GRUB.EXE only runs in real mode DOS. It cannot run from a DOS
BOX inside Windows. Besides, GRUB cannot run if EMM386.EXE in
CONFIG.SYS line is loaded.

Currently runs on MS-DOS 3.30, 4.0, 5.0, 6.0, 6.20. 6.21, 6.22,
7.0(Win95), 7.10(Win98), 8.0(WinME/NT/2000/XP), and
FreeDOS(build 2029 and hopefully more future builds).

Currently could not return to DOS after GRUB.EXE was started.

Copyright(C): Tinybit(tinybit@163.net)

License: GNU GPL(see file COPYING)

source available as a diff patch to the GNU grub-0.94 release.
Compile the patched grub-0.94 on Linux, and the grub.exe
file will be created.

WARRANTY: NO WARRANTY(see file COPYING)

TO DO: Build for running on other DOS versions.

Usage:
GRUB --config-file=FILE

The FILE, for example, can be (hd0,0)/boot/grub/menu.lst

GRUB

In CONFIG.SYS, the line looks like:

install=c:\some\where\grub.exe --config-file=FILE

If no options present, GRUB for DOS simply uses

(hd0,0)/boot/grub/menu.lst

as the configure file, if it exists.

The partition (hd0,0) can be a Windows partition or a Linux
partition, or any other partition type supported by GRUB.

--------------------------------------------------------

FTP site: (temporarily) ftp://ftp.cosoft.org.cn/incoming/

Web site: (English) http://newdos.yginfo.net/grubdos.htm
built by Wengier. Thanks!

Update: Version 0.2.0 also brings out a new thing, GRUB for NTLDR,
which could be used to boot into GRUB from the boot menu
of Windows NT/2000/XP. Copy BOOTGRUB and GRLDR to the root
directory of drive C: of Windows NT/2000/XP and append to
C:\BOOT.INI a line like this:

C:\BOOTGRUB="Start GRUB"

That will be done.

--------------------------------------------------------

There is no full documentation in English for version 0.2.0 at present.
Here are only some examples showing the usage of the disk emulation commands:

1. Emulates HD partition C: as floppy drive A: and boot win98 from C:

map --read-only (hd0,0)+1 (fd0)
chainloader (hd0,0)+1
rootnoverify (hd0)
boot

In the above example, (hd0,0) is drive C: with win98 on it. After win98
boot complete, you will find that A: contains all files of C:, and if
you delete files in A:, the files in C: will also disappear.

At the map command line, the notation (hdm,n)+1 is interpreted to
represent the whole partition (hdm,n), not just the first sector of the
partition.

2. Emulates HD partition C: as floppy drive A: and boot win98 from A:

map --read-only (hd0,0)+1 (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)
boot

After the "map --hook" command, the emulation takes effect instantly
even in the GRUB command line.

Note that the (fd0) in "chainloader (fd0)+1" is the emulated virtual
floppy A:, not the real floppy diskette(because map is hooked now).

3. Emulates an image file as floppy drive A: and boot win98 from C:

map --read-only (hd0,0)/floppy.img (fd0)
chainloader (hd0,0)+1
rootnoverify (hd0)
boot

4. Emulates an HD partition as the first hard disk and boot DOS from it:

map --read-only (hd2,6)+1 (hd0)
map --hook
chainloader (hd0,0)+1
rootnoverify (hd0)
boot

In this example, (hd2,6)+1 represents an extended logical DOS partition
of the third BIOS hard disk (hd2).

If a DOS partition is used to emulate a hard disk, GRUB for DOS will
first try to locate the partition table, usually 63 sectors ahead of
the DOS partition. GRUB for DOS will refuse the emulation if the
partition table is not there.

5. Emulates an image file as the first hard disk and boot DOS from it:

map --read-only (hd0,0)/harddisk.img (hd0)
chainloader (hd0,0)/harddisk.img
rootnoverify (hd0)
boot

If an image file is used to emulate a hard disk, the image file must
contain an MBR. In other word, the first sector of HARDDISK.IMG must
contain the partition table of the emulated virtual hard disk.

--------------------------------------------------------

Floppies/harddisks of any size can be emulated with GRUB for DOS 0.2.0.

Image file must be contiguous, or else GRUB for DOS will refuse it.

Type "help map" at the GRUB prompt to get a brief description of the
command.

The form

map ... (fd?)

is a floppy emulation, and the form

map ... (hd?)

is a hard disk emulation.

When a HARD DISK emulation is used, better not start Windows for
security reasons. Windows may even destroy all data and all information
on all your real hard disks!!!!!!!!

B6层发表时间: 04-03-06 19:28

论坛: UNIX系统