Linux architectures

• Linux 1.0 (1994)
  • i386 (32 bits)
• Linux 1.2 (1995)
  • i386 (32 bits)
  • Alpha (64 bits)
  • MIPS (32 bits)
  • SPARC (32 bits)
• Linux 2.0 (1996)
  • Alpha (64 bits)
  • i386 (32 bits)
  • MIPS (32 bits)
  • m68k (32 bits)
  • PowerPC (32 bits)
  • SPARC (32 bits)
• Linux 2.2 (1999)
  • Alpha (64 bits)
  • ARM (32 bits)
  • i386 (32 bits)
  • M68K (32 bits)
  • MIPS (32 bits)
  • SPARC (32 bits version)
  • SPARC-64 (64 bits version)
  • PowerPC (32 bits)
• Linux 2.4 (2001)
  • Alpha (64 bits)
  • ARM (32 bits)
  • i386 (32 bits)
  • IA64 (64 bits) (Itanium)
  • M68K (32 bits)
  • MIPS (32 bits)
  • MIPS-64 (64 bits)
  • PA-RISC (32 bits) (puffin group)
  • PowerPC (32 bits)
  • PowerPC64 (64 bits)
  • IBM S/390 (32 bits) (Linux for s390 web)
  • IBM S/390x
  • SH (a.k.a Hitachi H8) (32 bits)
  • SH64 (64 bits)
  • SPARC (32 bits versions)
  • SPARC64 (64 bits versions)
  • x86-64 (64 bits versions)
• Linux 2.6 (2004)
  • Alpha (64 bits)
  • ARM (32 bits)
  • Cris (32 bits)
  • h8300
  • i386 (32 bits)
  • IA64 (64 bits) (Itanium)
  • M68K (32 bits)
  • M68K (32 bits) without Memory Management Unit
  • MIPS (32 bits)
  • MIPS-64 (64 bits)
  • PA-RISC (32 bits) (puffin group)
  • PowerPC (32 bits)
  • PowerPC-64 (64 bits)
  • IBM S/390 (32 bits) (Linux for s390 web)
  • IBM S/390X (64 bits)
  • SH (embedded systems) (32 bits)
  • SH64 (64 bits)
  • SPARC (32 bits versions)
  • SPARC64 (64 bits versions)
  • UM (User Mode Linux) UserModeLinux kernel
  • V850
  • x86-64 (64 bits, ia32 compatible)
• Available (but not in mainline source)
  • DEC VAX
• Unsupported
  • AS/400 (lack of memory protection in hardware)
  • Cray
  • Motorola 88000