The server install image allows you to install Ubuntu permanently on a computer for use as a server. It will not install a graphical user interface.

Choose this if you have a computer based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). Choose this if you are at all unsure.

For 64-bit ARMv8 processors and above.

For POWER8 Little-Endian computers, such as Power Systems S8xxL/LC Linux-only servers.

For IBM System z series mainframes, such as IBM LinuxONE.