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Network Operating Systems-I

notes
Example: If you have 1GB of physical memory, create a 1.5GB swap partition.

setting Boot Loader

The GRUB Boot Loader

If you have decided to go with a dual-boot install, you’ll need to set up the GRUB boot loader.
GRUB is a program that will let you select from a list of installed operating systems, then makes
the computer start up the selected OS. As Figure 1.10 shows, it’s pretty easy to set up. Note that
you should set a boot loader password to prevent unauthorized users from gaining access to the
kernel’s startup parameters.

Figure 1.10: Configuring GRUB

first Boot
firstboot is the program that runs on the first boot of a Fedora or Red Hat Enterprise Linux system
that allows you to configure more things than the installer allows.
It also has a mode known as reconfig mode to let you reconfigure user settings that were originally
set in the installer. This is generally useful to IHVs shipping hardware to an end user so that the
end user can do things such as select their language, set their root password and configure their
network. To start this mode, touch /etc/reconfigSys on your system.
firstboot has a modular architecture such that each screen is a separate python module. This
allows firstboot to be a framework that requires no knowledge of the underlying modules. The
primary benefit of this is that additional steps can be added without having to modify firstboot
itself. The Modules page describes how to create a firstboot module.

networking

After you’ve set up all of your partitions, you’ll be offered the networking options shown in
Figure 1.11, “Configuring Fedora’s networking options.” Existing Ethernet cards within the
machine will be denoted as ethn; if the machine has only one network card, it will be called

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