-----Original Message----- From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Garrick Staples Sent: Friday, February 08, 2008 4:32 PM To: CentOS mailing list Subject: Re: Centos 5 on i586 On Fri, Feb 08, 2008 at 12:40:55PM -0800, MHR alleged: > On Feb 8, 2008 9:02 AM, Ray Van Dolson <rayvd@xxxxxxxxxxxx> wrote: > > > > On Fri, Feb 08, 2008 at 05:47:58PM +0100, Matias Surdi wrote: > > > Is possible to install Centos 5 on a 586 CPU? (cpu_type = 5) > > > > > > > No. I think there was some interest in making this happen at some > > point: > > > > http://wiki.centos.org/QaWiki/CentOS5PentiumSupport > > > > However I'm not sure that it will end up happening: > > > > http://bugs.centos.org/view.php?id=1836 > > > > Pardon me, but you CAN install CentOS 5.1 on any x86 CPU. If your CPU > is a valid 64-bit CPU, you can install either the i386 version > (32-bit) or the x86_64 version. You may not get full support of > specific CPU instructions that are available ONLY on your particular > CPU, but the right one will run. > > I had 586 CPUs on two different machines at work way back when 5.0 > came out, and the x86_64 installation ran just fine on both. >There is no such thing as a 64bit i586 CPU. > >With regards to Intel CPUs, the original Pentiums are i586. Everything after that (PentiumPro, PentiumII, III, and IV) is i686. Earlier PentiumIV are >32bit only, later chips added the 64bit instructions and registers. > >The CPUs are backwards compatible with older software. So, what is a "valid" 64bit CPU? I have a DEC Alpha in the basement that is most certainly 64 bit, but can't install the i386 or x86_64 version on it. How about Sparc or HP-UX boxes? Are they valid 64 bit CPUs? _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos