Difference between revisions of "Centos installation"

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After you burn and boot from this CD, you will see:
After you burn and boot from this CD, you will see:


[[Image:centos_install_1.png]]
[[File:Centos (1).jpg]]


Press ENTER here to go to GRAPHICAL MODE (in text mode it is not possible to deselect all the packets).
Press enter. System will ask you to check your installation media. Press ''Skip'' to save the time:


[[File:Centos (2).jpg]]


Now select your language here and click ''Next'':


After that you will be asked to test the install CD - let's skip this part to save time:
[[File:Centos (3).jpg]]


[[Image:centos_install_2.png]]
Select your keyboard layout and click ''Next'':


[[File:Centos (4).jpg]]


On the main Centos window, press NEXT:
If your hard disk is blank (no partition) you will get this message.  Click ''Yes, discard any data'' and then click ''Next'':


[[Image:centos_install_3.png]]
[[File:Centos (5).jpg]]


Type your Hostname and click ''Next'':


Select your installation language:
[[File:Centos (6).jpg]]


[[Image:centos_install_4.png]]
Select your time zone and click ''Next'':


[[File:Centos (7).jpg]]


And your keyboard layout:
Read this menu carefully. First section will use all the spaces of your HDD and erase all data. Second Section will only remove previous Linux partition. Third section will reduce size of exiting partition and create some free spaces to install CentOS. In last section you can create partition manually. Just choose last section to manually create partition:


[[Image:centos_install_5.png]]
[[File:Centos (8).jpg]]


Here you have to create partition to install CentOS. And also have to create a root (/) partition and Swap area. Select ''free space'' and click ''Create'':


Then your system asks you to reformat your HDD. Make sure you know what you are doing and press YES:
[[File:Centos (9).jpg]]


[[Image:centos_install_6.png]]
Select ''Standard Partition'' and click ''Create''. In ''Mount Point'' section Type ''/'' for root partition. Type your partition size in MB and click ''Ok'':


[[File:Centos (10).jpg]]


The installer next asks whether the new HDD layout is okay. You can change it if you know what you are doing - we recommend leaving it as it is. Press NEXT:
Now you have to create a Linux swap area. Swap area is generally double of your RAM size. So select ''free space'' again and click ''Create''. In ''File System Type'' select ''Swap''. Give the size of this partition in MB and click ''Ok'':


[[Image:centos_install_7.png]]
[[File:Centos (11).jpg]]


Now you will get a warning message (''Format Warning''). Click ''Format''.


In the next window, confirm your step by pressing YES:
[[File:Centos (12).jpg]]


[[Image:centos_install_8.png]]
Click ''Next'':


[[File:Centos (13).jpg]]


The following window lets you select the network configuration, enter manual details or leave DHCP (manual is recommended):
Select your desired option. If you want desktop version select ''Desktop'' or if you want to install server then select ''Basic Server''. You can also customize default software installation by clicking on ''Add additional Software repositories'' or ''Modify repository''. Then click ''Next''.


[[Image:centos_install_9.png]]
[[File:Centos (14).jpg]]


After finishing all the process you will get a "Congratulations" message. Click on ''Reboot''.


Select your time-zone:
[[File:Centos (15).jpg]]


[[Image:centos_install_10.png]]
After reboot your computer you will get a login screen. Just type root as user name and your password.
 
 
Enter the root password:
 
[[Image:centos_install_11.png]]
 
 
This step is VERY IMPORTANT! Make sure you have unchecked EVERYTHING from package selection,  CHECK "Customize now", and press NEXT:
 
[[Image:centos_install_12.png]]
 
 
This step is also VERY IMPORTANT! Make sure you have unchecked EVERYTHING again and in ALL categories! Nothing should be left selected - otherwise the installer will ask you for other install CDs. When done, press NEXT:
 
[[Image:centos_install_13.png]]
 
 
Then you will see the final window, after which installation begins (press NEXT):
 
[[Image:centos_install_14.png]]
 
 
= Troubleshooting =
 
If the installer is asking you for CD #2, #3, #4, or anything else, it means you failed to UNSELECT all packets, as was pointed out above.
 
Solution:
 
# Read the manual carefully once again.
# Do as it says EXACTLY (unselect ALL packets).
# Reinstall.
 
<br><br>
=See also=
 
* [[OVH_server_installation|CentOS installation on OVH servers]]

Revision as of 16:02, 12 July 2012

In order to install MOR, you need the Centos 5.2+ system (Install newest version).

First of all, you need to download the Install image. Decide which architecture you need (i386 or x86_64) and download only the first CD out of 6(7), because only the first CD is necessary to install the base system.

How do you choose between i386 (32bit) and x86_64 (64bit)? There is a simple rule: if you have 4gb of RAM or more, choose x86_64 (64bit).

Centos can be downloaded from here: http://mirror.centos.org/centos/5/isos/

As an example, for i386 you should download the file CentOS-5.4-i386-bin-1of6.iso.

For x86_64, download the file CentOS-5.4-x86_64-bin-1of7.iso

Make sure file IS NOT LiveCD and extension is ISO, but not .torrent!

After you burn and boot from this CD, you will see:

Centos (1).jpg

Press enter. System will ask you to check your installation media. Press Skip to save the time:

Centos (2).jpg

Now select your language here and click Next:

Centos (3).jpg

Select your keyboard layout and click Next:

Centos (4).jpg

If your hard disk is blank (no partition) you will get this message. Click Yes, discard any data and then click Next:

Centos (5).jpg

Type your Hostname and click Next:

Centos (6).jpg

Select your time zone and click Next:

Centos (7).jpg

Read this menu carefully. First section will use all the spaces of your HDD and erase all data. Second Section will only remove previous Linux partition. Third section will reduce size of exiting partition and create some free spaces to install CentOS. In last section you can create partition manually. Just choose last section to manually create partition:

Centos (8).jpg

Here you have to create partition to install CentOS. And also have to create a root (/) partition and Swap area. Select free space and click Create:

Centos (9).jpg

Select Standard Partition and click Create. In Mount Point section Type / for root partition. Type your partition size in MB and click Ok:

Centos (10).jpg

Now you have to create a Linux swap area. Swap area is generally double of your RAM size. So select free space again and click Create. In File System Type select Swap. Give the size of this partition in MB and click Ok:

Centos (11).jpg

Now you will get a warning message (Format Warning). Click Format.

Centos (12).jpg

Click Next:

Centos (13).jpg

Select your desired option. If you want desktop version select Desktop or if you want to install server then select Basic Server. You can also customize default software installation by clicking on Add additional Software repositories or Modify repository. Then click Next.

Centos (14).jpg

After finishing all the process you will get a "Congratulations" message. Click on Reboot.

Centos (15).jpg

After reboot your computer you will get a login screen. Just type root as user name and your password.

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