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To: gentoo-mips@g.o
From: Curtis Phillips <salmonleap@...>
Subject: Re: profiles
Date: Tue, 30 Aug 2005 09:47:01 -0700
I'd prefer Kumba's machine specific profiles. Of course, that's the one 
that's the biggest PITA to implement/update.

Curtis Phillips
Winemaker
Salmon Leap Consulting

On Aug 30, 2005, at 8:18 AM, Stephen P. Becker wrote:

> Hi folks,
>
> With the somewhat recent introduction of support for a wide variety of 
> SGI machines under gentoo, expanding to include all of Indy/Indigo2, 
> Origin, Octane, Indigo2 Impact (ip28), and O2, I've noticed more than 
> just a handful of new users have had problems when getting to the 
> kernel compile phase of the install.  The problem is that on systems 
> that only run 64-bit kernels, you need a mips64-unknown-linux-gnu 
> toolchain to build the kernel.  Since the userland is all 32-bit, the 
> native toolchain isn't good enough to compile the kernel.  However, we 
> do provide a proper toolchain via the gcc-mips64 ebuild.  Furthermore, 
> binutils supports mips64 by default, but symlinks must exist such that 
> we have mips64-unknown-linux-gnu-ld -> ld, etc.  Both of these are 
> automatically provided during emerge system if you use the correct 
> profile, which is default-linux/mips/mips64/2005.0 currently.
>
> The problem is that all of our stages ship with 
> default-linux/mips/2005.0 as the default profile, which does *not* 
> provide gcc-mips64 and the binutils symlinks.  Therefore if a user 
> didn't know any better and didn't change their profile appropriately, 
> they would be stuck while trying to build their kernel because the 
> native 32-bit toolchain in the userland will just spit out errors and 
> die when compiling the kernel.  Of course, this is easily fixed by 
> emerging gcc-mips64 and running "binutils-config --mips", which will 
> set up a proper toolchain.  However, by that time, the user is 
> discouraged a bit and inevitably finds our irc channel and whines that 
> Gentoo is broken.
>
> Now, I have a few ideas for getting around this.  Obviously whatever 
> is decided should be added to the documentation, but here are some 
> ideas:
>
> A) Do nothing...document in the handbook that if your machine is 
> 64-bit, you *must* select the mips64 sub-profile. (I don't like this 
> because some folks may be confused as to why everything still works 
> just fine with the mips profile, and/or they will just skim over that 
> and keep going)
>
> B) Similar to A, except ship stages without the profile set.  That 
> way, folks really are stuck until they set the proper profile.  (I 
> don't like this because they could still be confused and set the mips 
> profile)
>
> C) Make default-linux/mips/ provide all the 64-bit stuff and get rid 
> of the mips64 sub-profile, since all of the SGI machines we support 
> can run 64-bit kernels if you so choose (ip22 is the only system that 
> supports a 32-bit kernel at this time).
>
> D) (Kumba's idea here...) Have machine specific profiles, e.g. 
> default-linux/mips/ip22, default-linux/mips/ip32, etc.  (This could be 
> really useful because it would allow us to do some other machine 
> specific voodoo in the profile).
>
> Any thoughts?
>
> -Steve
> -- 
> gentoo-mips@g.o mailing list
>

-- 
gentoo-mips@g.o mailing list


Replies:
Re: profiles
-- Stuart Longland
References:
IP30 hang on warm boot
-- Aaron Walker
Re: IP30 hang on warm boot
-- Olivier Bornet
Re: IP30 hang on warm boot
-- Aaron Walker
Re: IP30 hang on warm boot
-- Olivier Bornet
Re: IP30 hang on warm boot
-- Aaron Walker
Re: IP30 hang on warm boot
-- Olivier Bornet
profiles
-- Stephen P. Becker
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Updated Jun 17, 2009

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