Dnia wtorek, 31 października 2006 11:14, Arnau Bria napisał:
> > I am sorry for such a newbie question but I really wane start
> > learning more about linux and use gentoo on my desktop computer.
> >
> > Now I've burned both pcc and pcc64 to two cd's but when rebooting it
> > just boots back into my old system which were Mandriva 2006 with Lilo
> Try ia64.
Yes, if those 2 CPUs Kyle mentioned are Itanium processors - I doubt. I guess
these are EM64T processors in which case the correct setting is somewhat
misleading AMD64 .
In case of EM64T, the system setting can be built upon this setting
(in /etc/make.conf):
CHOST="x86_64-pc-linux-gnu"
CFLAGS="-march=nocona -O2 -pipe"
CXXFLAGS="${CFLAGS}"
The NOCONA setting is crucial, as Intel is slightly different from AMD.
Also, look at your /proc/cpuinfo , flags section. Than set appropriate USE
flags according to this table:
CPU flag | set this
present | USE flag
-----------+---------
mmx | mmx
sse | sse
sse2 | sse2
pni | sse3 *
mmxext | mmxext
3dnowext **| 3dnowext
3dnow **| 3dnow
* No ebuild seems to use sse3 flag (yet)
** Well, 3dnow is for AMD/AMD64, put here just for reference
See also at http://gentoo-wiki.com/Safe_Cflags .
--
Pawel Kraszewski
www.kraszewscy.net
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