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List:       user-mode-linux-user
Subject:    Re: [uml-user] Run 2.6 kernel on 2.4 host
From:       "Vladimir \"Equidamoid\" Shapranov" <equidamoid () gmail ! com>
Date:       2015-02-09 13:41:51
Message-ID: 54D8B91F.9010705 () gmail ! com
[Download RAW message or body]

I thought about it but the idea of running cpu-intensive tasks designed 
for recent processors inside qemu on P3 class CPU is quite frightening. 
And network configuration might be tricky too.

On 09.02.2015 16:12 , Richard Weinberger wrote:
> On Sun, Feb 8, 2015 at 7:17 PM, Vladimir "Equidamoid" Shapranov
> <equidamoid@gmail.com> wrote:
>> Hi,
>>
>> I need to run some recent software on a legacy server running 2.4.18
>> kernel. Sadly it is not possible to rebuild the sotware to run natively
>> with that kernel (our code requires boost, boost requires gcc 4.5+,
>> gcc4.5+ doesn't like old glibc and recent glibc doesnt build for 2.4
>> kernel).
>> So I'm trying to run UML 2.6 kernel on 2.4 system. I tried prebuilt
>> 2.6.27 kernel from (http://uml.devloop.org.uk/kernels.html) but it
>> refused to run on 2.4 ("ERROR: kernel too old"). Next, I tried to build
>> it on the Debian Woody VM with gcc 2.95 & 3.4 and glibc 2.2 but got
>> dozens of errors.
>> Is it possible to build and run 2.6 on 2.4? What environment is
>> required? What are the limitations if any?
>
> Hmm, running 2.6/3 on 2.4 would be challenging.
> I'd try to use qemu-system-XY.
>

-- 
Best regards,
Vladimir

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