要將Linux完完全全的備份到另一顆抽取式硬盤，如果linux掛了，可以立刻升上來備援!!
由於對於linux 是ext3的格式，andy想到了幾種方式..
1. 使用tar
2. 使用cp
3. 使用dd
4. 使用cpio
5. 使用Ghost
試了半天，發現利用ghost的方式是最方便的，但之前聽前輩說，ghost似乎沒有支持ext3的格式，再苦尋半天及重復測試之後發現, 使用ghost 7.5以上版本即可。
方式如下:
1. 使用ghost Disk to Disk將原本的/dev/hda ghost到 /dev/hdb
2. 將原來的/dev/hda取下(不是bios disable就好哦..)，並將hdb設成master(也就是hda)
3. 使用Linux install開機片開機，選擇rescue
4. 如果是ext2格式..以下面方式..
EXT2
When the file system is EXT2, use the following steps to recover the
partition. These steps have resolved this problem in at least one instance:
1. Start the computer from the linux installation CD.
2. Type:
linux recover
3. Respond to the prompts for language and location.
4. Type:
lilo -r /mnt/sysimage -C /etc/lilo.conf -v
exit
5. Remove the CD and restart the computer.
The computer starts into the linux partition.
如果是ext3依下面方式..
Symantec Ghost 7.5, EXT3
When the file system is EXT3, use the following steps to recover the partition.
NOTE: Only Symantec Ghost 7.5 supports the EXT3 file system. If you use a
Ghost version other than Symantec Ghost 7.5 with EXT3, the following information
is provided as a convenience only, and Symantec does not provide technical support
for using Ghost in this manner.
1. Start the computer from the linux installation CD.
2. Use the option linux Rescue.
3. Type the following at the Rescue Command Prompt:
e2fsck /dev/hda1
In this command line, hda represents the first IDE hard drive in the computer
and the "1" represents the first partition to repair.
4. If you see the message "Superblock has a bad ext3 journal (inode8).
Clear <y>?" press Y. You will see the message: "* * * ext3 journal has
been deleted - file system is now ext2 only * * * . "
5. Type:
tune2fs -j /dev/hda1
You will see the message "Creating journal inode: done . This file
system will be checked every . . . days".
6. Repeat steps 3 for each EXT3 partition on the computer.
7. Type: exit
8. Remove the CD and restart the computer.
The computer starts into the linux partition.
5. 一切ok後, mount /dev/hda 到/mnt
6. chroot /mnt
7. 重建lilo
/etc/lilo -v -v -v
如果是使用grub的請執行/sbi/grub-install即可。
一切ok。
