On Wed, 2003-08-20 at 08:56, stephen wrote:
> I'm replacing my P3 850/Asus CUV4X with an Athlon 2700+/Asus A7N8X-X, but
> would like to keep my gentoo intact as much as I can.
>
> Currently I use CFLAGS="-march=pentium3 -O3 -pipe -fomit-frame-pointer"
> and have things like mmx and sse in my USE flags (should I take those
> out and use 3dnow instead?). I also use LVM with vgroups for usr,
> usr/local, var and tmp.
>
> I wonder if this will even boot now. Can anyone give me some hints about the
> best way to make the transition? Any help appreciated.
as i understand it, pretty much all of your binaries shouldn't work on
your new machine since you chose to use -march=pentium3. my best
suggestion would be to do the following (yes, it will take a very long
time):
1. edit make.conf to have the following:
CFLAGS="-mcpu=i686 -O3 -pipe"
<remove "mmx" and "sse" from USE and add "3dnow">
2. # emerge --emptytree world
3. install the new cpu
4. edit make.conf to have the following:
CFLAGS="-mcpu=athlon-xp -O3 -pipe"
5. # emerge --emptytree world
to me, this seems like a bit of a sledgehammer approach, but it's the
only way i would think you can be sure you'll be able to boot your
system after installing the new cpu. someone please correct me if they
know of a better solution.
--
i do not feel obliged to believe that the same god who has endowed us
with sense, reason, and intellect has intended us to forgo their use.
- galileo
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