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發表於 2011-9-8 12:17 | 顯示全部帖子

回復 36# 角色

Do you like a simple bash script to tar every directory?

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發表於 2011-9-9 08:49 | 顯示全部帖子

這是非常簡單的 scripts? 重點是不用擔心 MBR overwrite during partition image restore. 架server係 backup 時仲行緊。

Restore 完全冇問題，所以可以放心。

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發表於 2011-9-16 23:12 | 顯示全部帖子

回復 38# bubblestar

My backup script.

#!/bin/bash
bpath=/data/usb
DTE=`date +%Y%m%d`
export bpath
export DTE
mkdir $bpath/$DTE
cd $bpath/$DTE
tar zcvf bin.tgz /bin
tar zcvf boot.tgz /boot
tar zcvf command.tgz /command
tar zcvf dev.tgz /dev
tar zcvf etc.tgz /etc
tar zcvf home.tgz /home
tar zcvf lib.tgz /lib
tar zcvf media.tgz /media
tar zcvf misc.tgz /misc
tar zcvf mnt.tgz /mnt
tar zcvf opt.tgz /opt
tar zcvf proc.tgz /proc
tar zcvf root.tgz /root
tar zcvf sbin.tgz /sbin
tar zcvf selinux.tgz /selinux
tar zcvf service.tgz /service
tar zcvf srv.tgz /srv
tar zcvf sys.tgz /sys
tar zcvf usr.tgz /usr
tar zcvf var.tgz /var
tar zcvf web.tgz /web

複製代碼

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發表於 2011-9-17 06:49 | 顯示全部帖子

This is a file/directory backup.

How to restore is
tar zxvf /path/zxvf/dev.tgz

Remember in linux, we do not have registry. All settings are in file based. Only when online, some of the files in /dev and /proc are temporary files created during execution. They can usually be able to back up.

So realtime backup is possible

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發表於 2011-9-17 06:56 | 顯示全部帖子

The next question is how to quickly restore your system
1. ghost or true image backup / restore is easy to perform and usually very fast. One of the drawbacks I encountered before is the partition after restore may not be bootable in a multi boot environment. Very often when a partition is deleted and re-created, the order in partition table may be changed. In my case, I always write the linux grub boot loader in /dev/sda? or /dev/hda? instead of the MDR i.e. /dev/sda or dev/hda. Hence, this changes in order may result in not bootable restore

2. If I use script, I can control the location of restore and then issue command like this
grub-install --recheck
grub-install /dev/sda1

the first command shows me the bootable partition.