Installation of “CentOS Stream 9″

By: Prasanth

27 March 2025 at 07:50

Installations way of Linux operating systems:-

1.single Boot(Linux only)
2.Dual Boot( Linux + windows or macOS)
3.other operating system + virtual machine( multiple os run simultaneously)

*Early stage way to choose 2 or 3 option and move to 1 option(Recommend way),now we have see the early stage ,if you need 1 option please commend me the blog.

Operating system: Linux CentOS Stream 9

Prerequisites:-

*Pendrive 32 gb
*Internet connection
*minimum 2 gb ram
*free storage 40gb more

step1: Create a Bootable USB (Pendrive)

for windows user(using Rufus)

1.Download Rufus from => https://rufus.ie/en/
Dowload iso image from -https://www.centos.org/download/(choose iso base d on you system info)most likely x86_64 .
2.insert your usb drive into computer or laptop
3.After installation open rufus, fallow the below option :-

device : select your usb drive
Boot selection : choose the centos 9 iso file.'
partion scheme : choose GPT for UEFI or MBR for Legacy bios
filesystem : FAT32(FILE Allocation TABLE) click start ,now you have ready bootable usb-device.

step2: Configure BIOS/UEFI Settings

1.Restart your machine press f2,f12,Esc based on the system model.
2.find the bootable order or boot priority setting ,enable usb boot ,set as usb drive are first boot options.
3.enable boot mode - Legacy Mode /UEFI mode
4.Disable secure boot if enabled
5.save and exit F10

*step3: start installation:-
*

Insert the bootable USB and restart your pc now your machine start from bootable pen drive.

i. Now display show like this

choose the install centos stream 9

ii. choose your language

iii. Setup date and time, keyboard layout and language

iv. choose your location

v. setting up software options server whith GUI
as per below image.

vi. Installation Destination:-

Now i choose Automatic ,u can choose also custom(Recommended) if you not already available disk, network& host part skip now later we will discuses.
if you choose custom:-

/boot = Directory store all boot configuration related files & Linux kernels relate file

Example:-
/boot/vmlinuz-5.14.0-70.el9.x86_64
/boot/initramfs-5.14.0-70.el9.x86_64.img
/boot/grub2/grub.cfg (GRUB configuration)
/boot/efi/EFI/centos/grubx64.efi (If using UEFI)
2.Swap

when you physical ram is full , Linux moves inactive data to swap area, it prevent your system crash and keep process running ,when ram is free now data move back from swap to ram.
3./ (Root)

head/parent of the all directory in the Linux. All important files and application ,configuration save this location.

4./home
Directory contain user related files and documents and personal data.