Skip to content

Latest commit

 

History

History
140 lines (112 loc) · 3.38 KB

Centos-9-installation.md

File metadata and controls

140 lines (112 loc) · 3.38 KB

CentOS 9 Installation (GUI)

Download CentOS 9 Stream ISO

VirtualBox Setup

  1. Open VirtualBox and click New.
  2. Set the name to CentOS 9, type to Linux, and version to Red Hat (64-bit).
  3. Allocate 1024 MB RAM (According to requirement).
  4. Create a virtual disk:
    • Select VDI (Virtual Disk Image).
    • Choose Dynamically allocated.
    • Set file location and size to 40 GB (According to requirement).
  5. Start the virtual machine, select the CentOS 9 ISO, and click Start.

Installation

  1. Choose Install CentOS 9.
  2. Select English > English (India) > Continue.
  3. Configure settings:
    • Date & Time: Asia/Kolkata > Done.
    • Keyboard Layout: English (India, with rupee) > Add English (US) > Done.
    • Language Support: English (India) > Done.
    • Installation Source: Verify ISO > Done.
    • Software Selection: Select Server with GUI.
  4. Configure partitioning:
    • Custom partitioning > Done.
    • Create partitions:
      • /boot - 1024 MiB, ext4, Standard.
      • swap - 4096 MiB, Standard.
      • / - XFS file system, Standard.
    • Click Done > Accept Changes.
  5. KDUMP: No changes.
  6. Network & Hostname:
    • Enable enp0s3.
    • Configure IPv4 manually, disable IPv6, save settings.
    • Set hostname to Demo.
  7. Security Policy: No changes.
  8. Click Begin Installation.
  9. Set root password and create a user:
    • Full name: <demouser>.
    • Username: <demouser>.
    • Tick Make this user administrator.
  10. Click Done > Done, then Reboot.
  11. Accept License Agreement.
  12. Finish Configuration.

Install Drivers

  1. Go to Device > Network > Network Settings > Bridged Adapter.

  2. Run the following commands:

    yum install gcc
    yum install kernel-devel
    reboot

  3. Insert Guest Additions CD:

    • Go to Device > Insert Guest Additions CD Image > Run.
    • Reboot the system.

If Installation Fails, Use These Commands:

rpm -q kernel-devel
uname -r
yum update kernel-*
yum install epel-release.noarch
yum install gcc make perl kernel-devel kernel-headers bzip2 dkms
yum install make perl
yum install kernel-devel-$(uname -r)
yum install epel-release
reboot
device > Insert Guest Additions CD image > Run
reboot

Verify MD5 Checksum for ISO

  1. Download the MD5 checksum file for CentOS 9.
  2. Open the command prompt and run: 
    md5sum filename.iso
  3. Compare the generated checksum with the official checksum.

SSH Not Working on Windows 7

  1. Install PuTTY:

  2. Launch PuTTY:

    • Open Start Menu, search for PuTTY, and launch it.

  3. Connect to CentOS Server:

    • In PuTTY Configuration:
      • Enter the IP address of your CentOS server.
      • Ensure Port 22 is selected.
      • Click Open, then accept the security prompt.

  4. Login to the Server:

    • Username: root
    • Password: *****
    • Assign a session name (e.g., CentOS 9).