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27. Backup and Recovery > 27.1. Making Backups

Making Backups

Making backups of your system is an important way to protect yourself from data corruption or loss in case you have problems with your hardware, or you make a mistake such as deleting important files inadvertently. During your experiences with Linux, you’re likely to make quite a few customizations to the system that can’t be restored by simply reinstalling from your original installation media. However, if you happen to have your original Linux CD-ROM or DVD-ROM handy, it may not be necessary to back up your entire system. Your original installation media already serve as an excellent backup.

Under Linux, as with any Unix-like system, you can make mistakes while logged in as root that would make it impossible to boot the system or log in later. Many newcomers approach such a problem by reinstalling the system entirely from backup, or worse, from scratch. This is seldom, if ever, necessary. In "What to Do in an Emergency,” later in this chapter, we talk about what to do in these cases.


  

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