Web and email hosting - 378 Part III . Choosing and Installing a
378 Part III . Choosing and Installing a Linux Distribution Rebooting Your Linux Mac If you ve followed the instructions in this chapter to create a system that can boot either Mac OS X or Yellow Dog Linux, you will see a new step in your system s boot process. When you reboot your system, you will see a small text menu in the upperright corner of the screen that enables you to specify the system that you want to boot. Your choices are: l Boot Yellow Dog Linux x Boot Mac OS X c Boot from the CD-ROM drive If you do not specify one of these three options, your system will automatically boot into Yellow Dog Linux in 10 seconds. Updating Yellow Dog Linux Yellow Dog Updated, Modified (yum) is included with Yellow Dog and ships with Fedora, Mandrake, and other Linux distributions as well. It s a utility that enables you to update your system packages to the latest available version. Because new security vulnerabilities are released on all operating systems frequently, updating your system packages regularly is essential. Updating your packages also gives you the newest features available for the applications you are using. Table 12-1 shows some of the most widely used options available with yum (replace package with the name of your package). Table 12-1 Using Yum to Work with Software Packages Option Description yum list Shows all the packages available to be installed (but not installed). yum list installed Shows installed packages. yum list updates Shows all installed packages that have updates (patches) available. yum install package Installs the package you identify in package. yum update package Updates the package you identify in package. The great thing about this is it installs all package dependencies, which used to be a major headache when administering patches.
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