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Home > News > Linux > Ubuntu Tips and Tricks
April 27th, 2012, 10:41 GMT ByMarius Nestor
T h e f o l lo w i n g t u t o r i a l w i l l t e a c h u s e r s h o w t o i n s t al l t he Ubuntu 12 .04 LTS (Prec i se Pango l i n )
opera t i ng sys tem.
Ubuntu 12.04 LTS, also known as the Precise
Pangolin, arrived on April 26th, 2012 and is the
16th release of the Ubuntu operating system.
Even if the Ubuntu 12.04 LTS operating system includes a smarter
installer, we've created the following tutorial to teach both Linux
newcomers and existing Ubuntu users how to install the Ubuntu 12.04
LTS operating system on their personal computer.
This tutorial is also addressed to people who have just heard about
Ubuntu, those who have never installed Ubuntu before and want to test
it, but don't know how!
The following guide will make things very simple for you, but if you get
stuck somewhere in the middle of the installation and you need help, do
not hesitate to use our commenting system at the end of the article!
Requ i remen ts :
You will need the Ubuntu 12.04 LTS Desktop ISO imagethat corresponds
to your hardware architecture (i386 or amd64), and that can be downloaded from here . When the download is over, burn the ISO
image with your favorite CD/DVD burning application (Nero, CDBurnerXP, Roxio) on a blank CD at 8x speed.
Reinsert or leave the CD in your CD/DVD-ROM device and reboot the computer in order to boot from the CD. Hit the F8, F11 or
F12 key (depending on your BIOS) to select the CD/DVD-ROM as the boot device.
Wait for the CD to load...
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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...
Prepar ing to i ns ta l l Ubun tu
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!
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Al locate dr ive space
At this screen you have various options:
1. Install Ubuntu 12.04 LTS alongside (other operating systems)
- Choose this option ONLY if you have another OS (e.g. Windows XP) and you want a dual boot system. You can choose which
operating system you want each time the computer starts up.
Edi t o r ' s Note : Remember that, after the installation, the Windows boot loader will be overwritten by the Ubuntu boot loader!
2. Upgrade Ubuntu x.x to 12.04 LTS
- Choose this option ONLY if you have another Ubuntu OS (e.g. Ubuntu 11.10) and you want to upgrade it to Ubuntu 12.04 LTS.
Your personal files will be saved, but you will have to reinstall most of your packages. The general system settings will be erased!
3. Erase and use the entire disk (Erase Ubuntu x.x and reinstall)
- Choose this option if you want to delete your existing operating system, or the hard drive is already empty and you want to let
the installer automatically partition the hard drive for you. This is the option recommended for all users, especially those who want
a machine with a single operating system on it.
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;
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- 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 "Add" 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 "Add" 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 "Add" 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...
WARNI NG: Be aware that all the data on the selected hard drive or partition will be ERASED and IRRECOVERABLE.
EXTREMLY I MPORTANT: D o n ' t f o r g e t t o c h o o s e w h e r e GR UB w i l l b e i n s t a l l ed , f r o m t h e " D e v ic e f o r b o o t l o a d er
i n s t al l a t i on " d r o p - d o w n b o x , b e f o r e y ou h i t t h e " I n s t a l l N o w " b u t t o n .
Click the "Install Now" button to continue with the installation...
Edi t o r ' s no te : At this point the hard drive will be erase and partitioned, the CD data will be copied to the hard drive, and you can
relax and continue to input the following required information.
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Where a re 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 you exact location with the mouse on the map, or just type the town in the designated field.
Click the "Forward" button after you have selected your desired location...
Keyboard l ayou t
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
"Forward" button when you have finished with the keyboard configuration...
Who a re 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 "Forward" button to continue...
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At this point the Ubuntu 12.04 LTS (Precise Pangolin) 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...
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The CD will be ejected; remove it 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 click the little "Log In" button or hit Enter to log in...
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FILED UNDER:
Share your thoughts on this story...
That's it! Have fun using Ubuntu 12.04 LTS.
TELL US WHAT YOU THINK:
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READER COMMENTS:Comment #1 by: Russman on 27 Apr 2012, 00:45 UTC reply to this comment
Hallo guys.. One question. Why my Ubuntu can't run on CD?? Tried many times but no luck..
Comment #1.1 by: Marius Nestor on 27 Apr 2012, 14:21 GMT
Hello, with what application did you write the ISO image on the CD? Please make sure it is bootable! I guess you
know how to boot from a CD in BIOS, right?
Comment #2 by: r t gk id on 27 Apr 2012, 01:27 UTC reply to this comment
This story is missing screenshots... Otherwise, great tutorial!
Comment #2.1 by: Marius Nestor on 27 Apr 2012, 14:22 GMT
The screenshots are there :)
Comment #3 by: Anil on 27 Apr 2012, 03:01 UTC reply to this comment
why did you make the third partition?, and where to install grub?, for example
suppose sda is the primary boot drive with window 7 installed, should i install the grub in sba or in my second hard drive sdb?
and i read somewhere that, one should disconnect the hard drive in which one doesn't going to install Ubuntu, is this right?
(images are not showing up in the article)
Comment #3.1 by: t o m m o 1 9 8 2 on 27 Apr 2012, 13:54 GMT
Grub will be installed in two places. First is MBA of your HDD and second is the .. / . There's no need to install it
elsewhere, but if you wish you can create separate partition and select from the drop down meny /boot. I'd suggest
giving it 200MB or more since that's where kernel image will reside.
To answer the disconnect drive question ... you probably mean mount. It doesn't mean phisically disconnecting your
HDD or partition. Mounted partition is an active one, which means you can work with it, write data do it, etc.
Unmounted partition is one that at this time is made unavailabe to the system, i.e. you don't need it at the moment
(windows partitions are good example of it).
The 3rd partition. I'm not entirely sure which one you refer to. /home is your working directory, that's where your
user directory is and all account configuration. '/' is the root tree of the system. Meaning all the files the system
consists of. It's a good strategy to separate both. you can easily change your operating system leaving /home intact
and get all your configs when you run the new one.
I suggest reading some about how linux works. This is just a little part of it.
Comment #3.2 by: Marius Nestor on 27 Apr 2012, 14:26 GMT
1. You can make only two partitions if you want, swap and /. I made the /home partition to make my life easier when
I want to reinstall Ubuntu. This way all my personal files remain intact :)
2. I suggest to install GRUB on sdb, the same partition you install Ubuntu into. This way, you can select in BIOS from
which hard drive to boot from.
3. Nonsense!
Comment #3.3 by: Anil on 28 Apr 2012, 02:51 GMT
i can't create bootable usb drive, I'm just getting black screen.
after some googling i found this-
http://askubuntu.com/questions/126238/ubuntu-12-04-doesnt-start-after-installing-with-liveusb
which refers to this guide-
http://ubuntuforums.org/showthread.php?t=1581099
is this the solution to my problem?,, i had Ubuntu installed some time before but now i don't have it, so how can i fix
this issue?
Comment #4 by: paapa on 27 Apr 2012, 14:52 UTC reply to this comment
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Does this version have wubi installer? I don't want partition my drive.
Comment #5 by: anonymous on 27 Apr 2012, 21:53 UTC reply to this comment
The method described in the article is too complicated. Here is a much simpler method:
sudo debootstrap --components=main,multiverse,universe precise pangolin
Comment #6 by: Khan on 28 Apr 2012, 02:32 UTC reply to this comment
Ubuntu is improving day by day.
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