Linux is a free, open-source operating system kernel. Anyone can look at its code, change it, and share it. On top of that kernel, people build full operating systems called "distributions" — you install one of those, not "Linux" by itself.
:: WHO CREATED LINUX? ::
A Finnish student named Linus Torvalds started Linux in 1991 as a hobby project while studying at the University of Helsinki. He posted it online and asked for help — programmers around the world jumped in, and it grew into what powers servers, phones (Android), and countless devices today.
:: HOW TO INSTALL LINUX ::
Pick a distro (see the list below — Ubuntu or Mint are easiest for beginners).
Download the .iso file from the distro's official website.
Write it to a USB stick with a tool like Rufus or Balena Etcher.
Boot from the USB (usually F12 / F2 / Del at startup) and follow the installer.
Try "Try without installing" first if you're not sure yet!
:: HOW TO FIX COMMON ERRORS ::
Black screen on boot: try adding "nomodeset" to boot options.
No Wi-Fi: check if your card needs proprietary drivers (common on Broadcom cards).
"Command not found": you probably need to install that program first with your package manager.
System won't boot after update: boot into an older kernel from the GRUB menu.
When in doubt: read the error message carefully and search it — someone else has hit it too.
:: ALL THE DISTROS ::
Distro
Good for
Ubuntu
beginners, general use
Linux Mint
beginners coming from Windows
Debian
stability, servers
Fedora
newest software, developers
Arch Linux
full control, learning Linux deeply
Manjaro
Arch power with less hassle
openSUSE
business & desktop mix
Slackware
old-school purists
Gentoo
compiling everything yourself
Kali Linux
security & penetration testing
Puppy Linux
very old / weak hardware
:: DISTRO-O-MATIC 2000 GENERATOR ::
Answer 3 questions and the machine will tell you which distro to install!
:: LEAVE A COMMENT ::
Talk about distros, ask questions, argue about init systems — go wild.