[Techtalk] i386 or i686?

Conor Daly conor.daly at oceanfree.net
Thu Oct 30 17:22:43 EST 2003

On Thu, Oct 30, 2003 at 08:39:31AM +0000 or so it is rumoured hereabouts, 
Alvin Goats thought:
> > How do I know whether I need i386 or i686 RPMs? Is it as simple as 
> > asking whether I have a Pentium or a Pentium 2/3/4?
> i386 = 386SX and 386DX CPU's
> i486 = 486SX and 486DX, uses some exra code the CPU has
> i586 = Pentium class processors, some MMX code additons
> i686 = Pentium II and above processor class
> The Cyrix and AMD processors of equivalent Intel class will also use the
> same "iXXX" software.

I had an issue some time back where a system, installed on a celeron box,
was transferred to an AMD box (ie. the HD was moved) and it wouldn't run.
Once I removed the i686 kernel and glibc (which is all that is i686 in
RH7.2) replaced them with i386 versions, the move was fine.

Conor Daly <conor.daly at oceanfree.net>

Domestic Sysadmin :-)
  4:17pm  up 7 days,  9:26,  0 users,  load average: 0.16, 0.03, 0.04
  4:16pm  up 7 days,  9:26,  1 user,  load average: 0.22, 0.13, 0.04

More information about the Techtalk mailing list