evgvs / vtos

osdev project from the good old times

vtOS-OSS-2020

My cringe osdev project from the good old times (2019-2020), with contributions from tvsclass: build script, "shell", some string functions and other. There was a version with initrd support, but it was never pushed into git. Posted on github because vtOS brings me a lot of pleasant nostalgic memories. In fact, this is my first project in C language, I was young and naive, had stolen a little bit of code and made my own "operating system".

Build kernel and run vtOS (to create ISO file, run ISO=1 ./build.sh):

git clone https://github.com/evgvs/vtos
cd vtos
./build.sh 
qemu-system-i386 -kernel vtos.bin

Features

• Kernel
• Print color text on screen
• Keyboard
• Ports IO
• Panic
• Shell
• GRUB boot support
• Higer Half kernel
• PIT
• Semi-working memory manager
• VFS

Real hardware

Enable following in BIOS:

• Legacy boot
• Legacy USB
• Port 60/64 Emulation