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Module 21
Boot the System
21.1
Boot Loaders
■ When Linux boots, the kernel is loaded into memory by a boot loader
■ Passes parameters to the Linux kernel
■ Allows one of several operating systems to be loaded
● Multiple versions of the Linux kernel
● Dual-booting with Windows and other OSes
■ The most popular boot loader is LILO (the Linux loader)
● Full user documentation provided
21.2
■
Look for the a directory called something like /usr/share/doc/lilo/ or /usr/doc/lilo-0.21/
■
The user guide is in a file called user.ps or User_Guide.ps
LILO
■ LILO runs when the system is booted
■ The lilo command configures how LILO will next run
■ The file /etc/lilo.conf specifies the configuration to be set by the lilo command
● Need to run the lilo command for changes to have affect
● Manual page lilo.conf(5)
■ lilo.conf has options in the form name=value
■ Options for specifix OSes are indented
● Linux kernels to install are introduced with image=
● Other OSes are introduced with other=
■ Other options are generic, or are defaults for the OSes
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