1. Debian
   1. Ubuntu
      1. Kubuntu
      2. Xubuntu
      3. Edubuntu
      4. Mythbuntu
      5. Ubuntustudio
      6. Mint
      7. Beatrix
   2. Xandros
   3. Linspire
      1. Freespire
   4. Knoppix
      1. Morphix
         1. ZoneCD
         2. DreamLinux
      2. Knoppmyth
      3. DSL
2. PuppyLinux
3. RedHat
   1. Madriva
      1. ALT Linux
      2. PCLinuxOS
      3. blackPanther
      4. OpenSLS
   2. Caldera
      1. SCO
   3. Fedora
   4. CentOS
   5. TurboLinux
   6. e-smith
   7. Kondara
   8. immunix
   9. HP Secure
   10. Super Rescue
4. Slackware
   1. Suse
      1. OpenSUSE
      2. Astaro
   2. SLAX
   3. Vector
5. dyne:bolic
6. Linux from scratch
7. CRUX
8. GoboLinux
9. RockLinux