[gentoo-user] Seeking advise for gentoo install/upgrade

[Sathish Vasudevaiah <svholla@vsnl.net>]

I have a bit of a situation as I plan to do upgrade/install gentoo
for the following  systems:

(All these systems are currently running gentoo (2.6.11) with 
the portage snapshot of 20051009)

System       Processor./HW           some info.
  [1]               Cyrix  c7                   Runs mythtv, head-less,
udev
                    Mini-ITX based         very slow compilation

  [2]             AMD64                      My desktop, devfs, 32-bit
                   nForce4 based              nvidia binary drivers
                                                       Plan to install
64-bit gentoo ina 
                                                       separate
partition

  [3]              P3 - compaq               desktop, dual boot with
win98
                     laptop                         working (old) wine
installation, devfs

  [4]              P4                                Planned gentoo
install, dual boot with
                                                        winxp


I would like to upgrade/install gentoo on all these systems to the
current version ( Mythtv-0.20, X.org 7.1, gcc 4.1, kernel >=2.6.18) . 
All of them have only the few strictly needed apps, no bloat.

I have a few questions in this regard

- As the mythtv box is very slow for compilations, is it possible to
build
  a binary distribution for that configuration on a differ machine
(system [2]) ?    Last time (Oct.2005) when the stage3 install was done,
I had to
put the CFLAGS as "march=i586 -m3dnow" for a stable system. How to
do that in a binary distribution build?

- As the network connection is a slow dialup connection, I would like to
download everything before the upgrade. I have with me 2006.1 i686 and
AMD64 livecd, portage-20061025 snapshot, i686 stage3 tarballs, X.org
7.1, gcc 4.1 distfiles. Plan to start with 2006.1	 install and then
switch to a 
more current snapshot. At what point in the install should I switch ?

- Are there any hints for choosing a portage snapshot ? I took
portage-20061025 since it was downloaded couple of weeks back.

- Are the i686 release source tarballs ok for 64-bit gentoo also ?


Any other advise /hints ?

Thanks
sathish





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