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List Archive: gentoo-amd64
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To: gentoo-amd64@g.o
From: Duncan <1i5t5.duncan@...>
Subject: Re: Cannot emerge gcc-3.4.5
Date: Mon, 10 Apr 2006 07:21:32 -0700
Stanislaw Jesmanowicz posted
<9ac0Doti.1144677597.7145800.stan@...>, excerpted below, 
on Mon, 10 Apr 2006 15:59:57 +0200:

> Thank you (all) for quick reply.
> 
> Setting IA32 emulation in the kernel solved the problem.

=8^)

> But it surprise me quite a lot ...
> I am using Gentoo on AMD64 boxes for 2 years already, and this is the
> first time that holds me from smooth update.
> What if I wanted to run strict AMD64 executables only ?

If you didn't want or need 32-bit compatibility, you could use the
nomultilib subprofiles.  These are 64-bit only.

> It also reminds me a nuisance - grub doesn't execute on running amd64
> system:
> file /sbin/grub
> /sbin/grub: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
> GNU/Linux 2.4.1, dynamically linked (uses shared libs), stripped

Correct.  For backward compatibility reasons, amd64 boots in 32-bit mode. 
Actually, I believe it boots in 16-bit real-mode, but it's still handled
by the 32-bit executable format.  It switches to 64-bit mode after loading
the kernel, if a 64-bit kernel is loaded, of course.

However, with 32-bit enabled in the kernel, you should find that grub will
now execute.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


-- 
gentoo-amd64@g.o mailing list


References:
Re: Cannot emerge gcc-3.4.5
-- Simon Stelling
Re: Cannot emerge gcc-3.4.5
-- Stanislaw Jesmanowicz
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Updated Jun 17, 2009

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