Re: seperate environments for different kernels
From: Rob (rpc_at_cafe4111.org)
Date: 05/30/04
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- In reply to: Younggyun Koh: "seperate environments for different kernels"
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To: linux-kernel@vger.kernel.org Date: Sun, 30 May 2004 01:12:44 -0500
On Saturday 29 May 2004 09:13 pm, Younggyun Koh wrote:
> Hi,
>
> i want to run linux 2.6.6 kernel, which needs upgrade of some system tools
> such as module-init-tools and nfs-utils. but other guys using the same
> machine with 2.4 kernel don't want me to upgrade them.
>
sorry, typo bug: that statement is actually
[ `uname -r` == "2.x.x-this-script's-desired-version" ] || exit
and since mod-init-tools are in /, you may need to actually replace them all
with wrapper scripts which call up the right one, passing all command-line
arguments to the real one... you install the 2.4 utils, move them all (i.e.,
to *-2.4) then the same for 2.6, and make a script with the original name
that calls the 2.6 binary when uname -r returns a 2.6 kernel, likewise with
2.4, etc.
even easier: you may be able to get away with this hack:
mount --bind /some-dir/2.6-bin /bin
mount --bind /some-dir/2.6-lib /lib
mount --bind /some-dir/2.6-sbin /sbin
mount --bind /some-dir/2.6-etc /etc
and so on.
do this in a script that starts with that statement above, so that only when
*your* kernel runs, it maps over the 2.4 kit without touching it.
-- Rob Couto [rpc@cafe4111.org] computer safety tip: use only a non-conducting, static-free hammer. -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Rob: "Re: seperate environments for different kernels"
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