Download Linux Distro

[1] Debian 5.0

http://ftp.riken.jp/Linux/debian/debian-cd/

The ISO file is for 32 bit computer. But if your computers can adapt to 64 bit computing, it's OK to install 64 bit version of Debian Lenny which is on following place. For example, if the CPU on your computer is Athlon64/FX/X2, Turion64, Opteron by AMD, or CPU with EM64T by Intel like Pentium4 501, 504, or all CPUs later from Pentium4 6xx, Pentium D, Core 2 Duo, Core 2 Quad, Xeon and so on.(this example is for desktop computers)

⇒ http://ftp.riken.jp/Linux/debian/debian-cd/

* This site explains with 64 bit version of Debian Lenny. However, Most configurations are not different from 32 bit one.

[2] Fedora 12.0

http://fedoraproject.org/

The ISO file is for 32 bit computer. But if your computers can adapt to 64 bit computing, it's OK to install 64 bit version of Fedora 12 which is on following place. For example, if the CPU on your computer is Athlon64/FX/X2, Turion64, Opteron by AMD, or CPU with EM64T by Intel like Pentium4 501, 504, or all CPUs later from Pentium4 6xx, Pentium D, Core 2 Duo, Xeon and so on.(this example is for desktop computers)

http://fedoraproject.org/

* This site explains with 64 bit version of Fedora 12. However, Most configurations are not different from 32 bit one.

[3] Centos 5.0

http://centos.eecs.wsu.edu/5.5/isos/i386/

The ISO file is for 32 bit computer. But if your computers can adapt to 64 bit computing, it's OK to install 64 bit version of CentOS 5 which is on following place. For example, if the CPU on your computer is Athlon64/FX/X2, Turion64, Opteron by AMD, or CPU with EM64T by Intel like Pentium4 501, 504, or all CPUs later from Pentium4 6xx, Pentium D, Core 2 Duo, Xeon and so on.(this example is for desktop computers)

⇒ http://centos.eecs.wsu.edu/5.5/isos/x86_64/

* This site explains with 64 bit version of CentOS 5. However, Most configurations are not different from 32 bit one.