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Date: Thu, 31 Jul 2008 15:40:03 -0300
From: "Daniel da Veiga" <danieldaveiga@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: move instalation from one system to another one.
In-Reply-To: <g6ss02$vts$1@ger.gmane.org>
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References: <200807301325.49352.Platoali@gmail.com>
<20080730103405.GA5620@marvin.heimnetz.local>
<20080731181202.87e69a0b.nicolas.s-dev@laposte.net>
<342e1090807311007n43d09f42vc5d7c6fe885a858a@mail.gmail.com>
<g6ss02$vts$1@ger.gmane.org>
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On Thu, Jul 31, 2008 at 2:15 PM, Nikos Chantziaras <realnc@arcor.de> wrote:
> Daniel da Veiga wrote:
>>
>> On Thu, Jul 31, 2008 at 1:12 PM, Nicolas Sebrecht
>> <nicolas.s-dev@laposte.net> wrote:
>>>
>>> Sebastian G=FCnther a =E9crit:
>>>
>>>> If you want such functionality, use Debian or Ubuntu.
>>>
>>> Or just use the good C*FLAGS and kernel options.
>>>
>>
>> Nicolas is right, you can (at your own risk, of course) do a migration
>> like this, so "DON'T" is not really the only option, and changing
>> distros is NOT an option in most cases. Gentoo is perfectly capable of
>> that.
>>
>> Change flags in make.conf for generic compatible ones, compile a new
>> kernel (I used genkernel for the migration, and compiled a specific
>> kernel for the new machine later), emerge -e world and transfer the
>> system (I used rsync, and had to deal with some network issues),
>> everything worked (after some fine tunning for the new hardware) for
>> me.
>
> Yeah, but that way you're doing emerge -e world twice. One on the old
> system, and one on the new system (to optimize for the specific CPU again=
;
> -march=3Dnative). It's usually faster to install from scratch and only
> transfer your setting to the new system.
>
Yes, but still, both emerges may run while you work, so that's not
wasted time, while on a new install, your machine is useless till you
get all that you need running (that's the compilation time for X, an
office suite, a window manager), and after that, you gotta transfer
all your files and settings (that may be tedious), and all of this
takes a time you could use to work...
All I'm saying is that you really don't need to start from scratch, I
personally find it more productive and fast (not to mention less
boring) to prepare and transfer the whole install, and only configure
the new hardware (that is part of a normal new install, so, you can't
avoid that), instead of waiting for compilations to end so you can use
packages on your new machine. Besides, I'm letting the official
portage tool do its job...
Anyway, it is MHO. In some cases, this may fail and a install from
scratch is the only option left. But I never had this bad luck.
--=20
Daniel da Veiga