A Micro Linux Distribution

KaiOS base image consists of a custom build kernel, busybox, dropbear, and a initramfs. The goal of this project is to make a small scale PXE or USB bootable OS that is light weight and fast. Designed for small scale custom projects, appliances and other embedded systems. KaiOS runs on x86 hardware and is 14Mb in size.

Over the past year, I have developed a small bootable USB stick using KaiOS and ClamAV automatically connect to the internet, download the latest antivirus definitions, and scan your PC. It creates a virus vault, moves your non critical infected PC files to the fault for protection. Infected files can be removed automatically or manually. I will be releasing an USB image free and open source. KaiOS Antivirus USB stick is now available for purchase for $19.99 CDN including world wide shipping.

KaiOS version 3.0 is now available via USB purchase. The update include both x86 and amd64 support. ARM and MIPS support coming soon.

ATTENTION: Please note this is not the same KaiOS that is being used on mobile devices. The KaiOS that is found on mobile devices is a port of Firefox OS and has is unrelated to this project. Please do not contact me requesting support for mobile devices.


  • Open Source initramfs
  • 14Mb size
  • PXE bootable
  • Light weight
  • x86 compatible
  • Full featured customizable 3.17.0  64-bit kernel
  • Busybox
  • OpenSSH server/client
  • udhcpc (DHCP Client)

KaiOS Anti-Virus USB Stick


We are happy to announce our new KaiOS Anti-Virus USB repair stick. Our KaiOS Anti-Virus USB repair stick uses an open source anti-virus cleaner called, “ClamAV” to remove virus when other anti-virus software cannot. Our USB stick boots into KaiOS 3.0 Linux, then launches ClamAV to download the latest anti-virus updates from the internet to clean your PC. After the scan is complete, you will have the option to either remove the infected files or move them to a safe location on your PC.

Our USB sticks are self booting, and are fully automatic. All that is required is a plugged-in PC with an internet connection and our KaiOS Anti-Virus USB repair stick. Will work for the Windows releases:

  • Windows 10(New)
  • Windows 8 or 8.1(New)
  • Windows 7
  • Windows Vista
  • Windows Xp

Order your KaiOS Anti-Virus USB repair stick today. Comes with KaiOS Anti-Virus 128Mb USB repair stick with KaiOS 3.0 installed.

Limited stock quantities. Only 300 produced. Buy before they are all gone. All prices are in Canadian Dollars. All orders will be shipped within a 24 hour period after successful completion of purchase. One order per person.

Order yours today for $29.99 CDN including free world wide shipping:

Free release now in download section below.


KaiOS Antivirus 2019 Download:

KaiOS Antivirus 2019 Source Code:

Download KaiOS64 v1.1 PXE Boot Image here:

Kernel Download:

PXE BOOT Files Direct Web Download:

initramfs source files on Github:
git clone https://github.com/kaios/kaios.git


  • 64-bit Kernel and binaries
  • Networking support
  • Added OpenSSH client and server
  • Added udhcpc support (Busybox DHCP Client)


KaiOS 2.0 Antivirus Edition featuring ClamAV

Download and unzip kaios_antivirus2015.zip do your desktop.
Create a bootable live USB using the kaiosAntivirus2015.img file. Use this link if you do not know how to create a bootable live USB.

Once the USB live stick is created, insert it into the USB port on your PC. Reboot your PC and enter the BIOS and change the boot order so the bootable live USB stick is the first to boot. Save and exit the BIOS. Please contact your manufacture before accessing the BIOS.

Reboot and KaiOS Antivirus 2.0 do the following:

  • Boot into KaiOS Linux
  • Mount all hard drives
  • Create a virus vault in C:/Virus_Vault for infected files
  • Download the latest virus database
  • Scan all hard drives for virus
  • Automatically move all virus to C:/Virus_Vault
  • Create a virus report in C:/Virus_Vault
  • Power off PC

KaiOS Linux is not responsible for any loss or damages.


Terminal screen has no authentication. SSH login authentication:

username: root
password: kaios

64 Bit PXE Boot Instructions:

Download kaiOS and extract to the following directory:
tar zxvf kaio64PXE-v1.1.tar.gz -C /tftpboot

Add the following to /tftpboot/pxelinux.cfg/default:
timeout 20
default KaiOS64v1.1
label KaiOS64v1.1
kernel kaios64/kernel/kaios1.0-stable
append initrd=kaios64/initramfs/kaios.igz rw shell


If you like KaiOS or KaiOS Antivirus and find that it is useful, than please consider donating $9.99 CDN to help support KaiOS. Your support pays for server bandwidth, hosting fees, domain costs, etc… Please click on the button below to send $9.99 CDN via PayPal.

Thank you very much for your support!