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In the last lesson, you learned
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how an operating
system boots up.
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It's an important concept to
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understand since you'll be faced
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with troubleshooting boot
up issues in IT support.
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Now, we're going to walk
through the steps to
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select and install
an operating system.
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We're going to focus
on operating systems
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in the IT space.
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First, we'll talk about deciding
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which operating system to
install in a business setting.
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Second, we'll dive into
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the overall process of
installing an operating system.
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How do you decide which
operating system to install?
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Well, you need to ask yourself
a couple of questions.
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Has the decision
already been made?
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The operating systems in
use by an organization have
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a lot to do with
the applications
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and systems that
they need to run.
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Are you working with an
organization or service that
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requires the use of a
specific operating system?
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If so, you're done.
That was easy.
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If a decision hasn't been
made on what OS to use
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or if you're looking for an
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operating system
for personal use,
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then you need to
ask yourself what
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software will need to be run on
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this device and lots of cases
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the software will
be designed to run
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on a specific operating system.
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It's also possible that the
software is cross-platform,
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meaning it can run on more
than one operating system.
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Another question to ask,
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is what hardware will be used?
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Modern operating systems do
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a pretty good job of
supporting common hardware.
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You should keep in mind that
some manufacturers allow
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their operating system to be
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only installed on
their hardware.
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There's one more thing
I should call out.
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Remember that we have
different CPU architectures,
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32-bit and 64-bit.
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Our operating systems will also
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be optimized for
this architecture.
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Make sure that the CPU
and OS are compatible.
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If you have a 64-bit CPU,
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you should also install
the 64-bit version
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of the operating
system you choose.
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Okay, now that you've
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chosen an operating system
that you want to use,
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let's work on getting it
installed on our hardware.
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Many computers come with
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an operating system
pre-installed.
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If you boot the computer
in this condition,
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the operating system
will continue
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from whatever point
the vendor left it at.
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You'll need to do
a couple of things
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to finish the installation,
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like choosing a computer
name or host name,
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or configuring the
network for the device.
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If you're going to be installing
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an operating system
from scratch,
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you can use different
installation media.
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Some operating system
manufacturers sell
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their operating system in
disk form or USB form.
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Some let you do reinstalls
directly over the Internet.
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As an IT support specialist,
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you will install an
operating system many times,
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so using one single disk
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won't be time-efficient
or scalable.
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Scalability is
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an important concept
that we'll cover later.
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If you want to scale
or accommodate
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multiple computers
the added support
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is something you need
to keep in mind.
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For now you're only
working with one computer,
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so let's focus on that.
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Let's just use a USB drive
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to install your
operating system.
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Most manufacturers have
their own special USB drives
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with the installation
image like Windows.
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For Linux, we can load up
an OS onto any USB drive.
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