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298.

The &architecture; port of Linux runs on any 680x0 with a PMMU (Paged Memory Management Unit) and a FPU (floating-point unit). This includes the 68020 with an external 68851 PMMU, the 68030, and better, and excludes the <quote>EC</quote> line of 680x0 processors. See the <ulink url="&url-m68k-faq;">Linux/m68k FAQ</ulink> for complete details.

299.

There are four major supported <emphasis>&architecture;</emphasis> flavors: Amiga, Atari, Macintosh and VME machines. Amiga and Atari were the first two systems to which Linux was ported; in keeping, they are also the two most well-supported Debian ports. The Macintosh line is supported incompletely, both by Debian and by the Linux kernel; see <ulink url="&url-m68k-mac;">Linux m68k for Macintosh</ulink> for project status and supported hardware. The BVM and Motorola single board VMEbus computers are the most recent addition to the list of machines supported by Debian. Ports to other &architecture; architectures, such as the Sun3 architecture and NeXT black box, are underway but not yet supported by Debian.

300.

Debian on &arch-title; supports the following platforms: <itemizedlist> <listitem><para> SGI IP22: this platform includes the SGI machines Indy, Indigo 2 and Challenge S. Since these machines are very similar, whenever this document refers to the SGI Indy, the Indigo 2 and Challenge S are meant as well. </para></listitem> <listitem><para> SGI IP32: this platform is generally known as SGI O2. </para></listitem> <listitem><para> MIPS Malta: this platform is emulated by QEMU and is therefore a nice way to test and run Debian on MIPS if you don't have the hardware. </para></listitem> <listitem><para> Broadcom BCM91250A (SWARM): this is an ATX form factor evaluation board from Broadcom based on the dual-core SB1 1250 CPU. </para></listitem> <listitem><para> Broadcom BCM91480B (BigSur): this is an ATX form factor evaluation board from Broadcom based on the quad-core SB1A 1480 CPU. </para></listitem> </itemizedlist> Complete information regarding supported mips/mipsel machines can be found at the <ulink url="&url-linux-mips;">Linux-MIPS homepage</ulink>. In the following, only the systems supported by the Debian installer will be covered. If you are looking for support for other subarchitectures, please contact the <ulink url="&url-list-subscribe;"> debian-&arch-listname; mailing list</ulink>.

301.

On SGI IP22, SGI Indy, Indigo 2 and Challenge S with R4000, R4400, R4600 and R5000 processors are supported by the Debian installation system on big endian MIPS. On SGI IP32, currently only systems based on the R5000 are supported. The Broadcom BCM91250A evaluation board comes with an SB1 1250 chip with two cores which are supported in SMP mode by this installer. Similarly, the BCM91480B evaluation board contains an SB1A 1480 chip with four cores which are supported in SMP mode.

303.

Debian on &arch-title; supports the following platforms: <itemizedlist> <listitem><para> Cobalt Microserver: only MIPS based Cobalt machines are covered here. This includes the Cobalt Qube 2700 (Qube1), RaQ, Qube2 and RaQ2, and the Gateway Microserver. </para></listitem> <listitem><para> MIPS Malta: this platform is emulated by QEMU and is therefore a nice way to test and run Debian on MIPS if you don't have the hardware. </para></listitem> <listitem><para> Broadcom BCM91250A (SWARM): this is an ATX form factor evaluation board from Broadcom based on the dual-core SB1 1250 CPU. </para></listitem> <listitem><para> Broadcom BCM91480B (BigSur): this is an ATX form factor evaluation board from Broadcom based on the quad-core SB1A 1480 CPU. </para></listitem> </itemizedlist> Complete information regarding supported mips/mipsel machines can be found at the <ulink url="&url-linux-mips;">Linux-MIPS homepage</ulink>. In the following, only the systems supported by the Debian installer will be covered. If you are looking for support for other subarchitectures, please contact the <ulink url="&url-list-subscribe;"> debian-&arch-listname; mailing list</ulink>.

327.

iMac Bondi Blue, 5 Flavors, Slot Loading

385.

NuBus systems are not currently supported by Debian/powerpc. The monolithic Linux/PPC kernel architecture does not have support for these machines; instead, one must use the MkLinux Mach microkernel, which Debian does not yet support. These include the following: <itemizedlist> <listitem><para> Power Macintosh 6100, 7100, 8100 </para></listitem> <listitem><para> Performa 5200, 6200, 6300 </para></listitem> <listitem><para> Powerbook 1400, 2300, and 5300 </para></listitem> <listitem><para> Workgroup Server 6150, 8150, 9150 </para></listitem> </itemizedlist> A linux kernel for these machines and limited support is available at <ulink url="http://nubus-pmac.sourceforge.net/"></ulink>.

391.

Complete information regarding supported S/390 and zSeries machines can be found in IBM's Redbook <ulink url="http://www.redbooks.ibm.com/pubs/pdfs/redbooks/sg246264.pdf"> Linux for IBM eServer zSeries and S/390: Distributions</ulink> in chapter 2.1 or at the <ulink url="http://www-128.ibm.com/developerworks/linux/linux390/index.html">zSeries page at the developerWorks</ulink>. In short, G5, Multiprise 3000, G6 and all zSeries are fully supported; Multiprise 2000, G3 and G4 machines are supported with IEEE floating point emulation and thus degraded performance.

409.

Multiprocessor support &mdash; also called <quote>symmetric multiprocessing</quote> or SMP &mdash; is available for this architecture. However, the standard Debian &release; kernel image does not support SMP. This should not prevent installation, since the standard, non-SMP kernel should boot on SMP systems; the kernel will simply use the first CPU.

410.

In order to take advantage of multiple processors, you'll have to replace the standard Debian kernel. You can find a discussion of how to do this in <xref linkend="kernel-baking"/>. At this time (kernel version &kernelversion;) the way you enable SMP is to select <quote>&smp-config-option;</quote> in the <quote>&smp-config-section;</quote> section of the kernel config.