Reinsert or leave the DVD in your DVD-ROM device, or the USB stick in the
USB port, and reboot the computer in order to boot from it. Hit the F8, F11 or
F12 key (depending on your BIOS) to select the DVD-ROM or the USB flash drive
as the boot device.
Wait for the DVD/USB to load...
In a couple of minutes, you will see the
wallpaper and the installation wizard. Select your language and click the
"Install Ubuntu" button to continue...
Preparing to install Ubuntu
Make sure you have all the listed requirements.
Optionally, you can choose to download updates while installing and/or install
third-party software, such as MP3 support. Be aware, though, that if you select
those options, the entire installation process will be longer!
Installation type
At this screen you have various options:

1. Reinstall Ubuntu 13.04/Install Ubuntu
alongside another OS
- Choose this option ONLY if you have a previous
Ubuntu 13.04 (for example a Beta version of it) installed and you want to
reinstall it, or if there's another OS, such as Windows, on the target hard
drive and you want to make a dual-boot system.
2. Erase OS and reinstall/Erase disk and
install Ubuntu (if there's no OS on it)
- Choose this option ONLY if you have another OS
and you want to install Ubuntu 13.04 on a fresh drive, replacing the existing
OS. This option will completely wipe the target disk drive.
3. Encrypt the new Ubuntu installation for
security (optional)
- Choose this option to fully encrypt your
entire Ubuntu installation with a strong passphrase that you will have to input
in the next step of the installation.
- If you choose this option, we also recommend
choosing the “Overwrite empty disk space” option on the second step, for
stronger security.
4. Something else (advanced)
- This option is recommended ONLY for advanced
users, to create special partitions or format the hard drive with other
filesystems than the default one. But it can also be used to create a /home
partition, which is very useful in case you reinstall the whole system.
Here's how you do a manual partitioning with
/home:
- Select the "Specify partitions manually
(advanced) and click the "Forward" button;
- Make sure that the selected hard drive is the
right one. /dev/sda is the first physical hard drive. /dev/sdb is the second
hard drive in your machine. So, make sure that you know which is the one you
want to format! Otherwise, you will lose ALL YOUR DATA on that hard drive;
- Let's say that the selected drive is empty (no
other operating system or important data on it), but it has some partitions on
it. Select each one of those partitions and click the "Delete" button.
After a few seconds, it will say "free space." Do this with the other
partitions from the selected hard drive, until they're all deleted and you have
a single "free space" entry;
- With the "free space" entry
selected, click on the "+" button. In the new window, type 2048 in
the "New partition size in megabytes" field and select the "swap
area" option from the "Use as:" drop down list. Click the OK
button and, in a few seconds, you'll notice a "swap" line with the
specified size;
- With the "free space" line selected,
click on the "+" button. In the new window, select the
"Primary" option, type a value between 30,000 and 50,000 (or whatever
space you have left on the drive) in the "New partition size in
megabytes" field and select /home as the "Mount point." Click
the OK button and, in a few seconds, you'll notice an "ext4 /home"
line with the specified size;
- With the "free space" entry
selected, click on the "+" button. In the new window, select the
"Primary" option, type a value between 10,000 and 50,000 in the
"New partition size in megabytes" field and select / as the
"Mount point." Click the OK button and, in a few seconds, you'll
notice an "ext4 /" line with the specified size.
This is how your partition table should look
like...

WARNING: Be aware that all the data on the selected hard drive
or partition will be ERASED and IRRECOVERABLE.
EXTREMLY
IMPORTANT: Don't forget to choose where GRUB will be installed, from
the "Device for boot loader installation" drop-down box, before you
hit the "Install Now" button.
Click the "Continue" button to start
the installation process.
Editor's
note: At this point
the hard drive will be erase and partitioned, the DVD/USB data will be copied
to the hard drive, and you can relax and continue to input the following
required information.
Where are you?
This screen will feature a map of the Earth.
Upon the selection of your current location, the time for the final system will
adjust accordingly. You can try to guess your exact location with the mouse on
the map, or just type the town in the designated field. Click the
"Continue" button after you have selected your desired location...

Keyboard layout
On this screen, you will be able to choose a
desired keyboard layout. But the default automatic selection should work for
most of you. You can also click the "Figure Out Keyboard Layout"
button for better recognition of your keyboard's layout. Click the
"Continue" button when you have finished with the keyboard
configuration...
Who are you?
On this screen, you must do exactly what the
title says. Fill in the fields with your real name, the name of the computer
(automatically generated, but can be overwritten), the name you want to use to
log in on your Ubuntu OS (also known as the "username," which will be
required to log in to the system), and the password.
Also at this step, there's an option called
"Log in automatically." If you check it, you will automatically be
logged in to the Ubuntu desktop.
Other option, called "Encrypt my home
folder," will encrypt your Ubuntu installation. Click the
"Continue" button to continue...
At this point, the Ubuntu 13.04 (Raring
Ringtail) operating system will be installed...
After approximately 10 to 15 minutes (depending
on your computer's specs), a pop-up window will appear, notifying you that the
installation is complete, and you'll need to restart the computer in order to
use the newly installed Ubuntu operating system. Click the "Restart
Now" button...
The DVD will be ejected, or just remove the USB
key and press the "Enter" key to reboot. The computer will be
restarted and, in a few seconds, you will see the Ubuntu boot splash...
At the login screen, just input your password
and hit Enter to log in...
That's it! Have fun using Ubuntu 13.04.