User Mode Linux (UML) User List. UML is a Linux Kernel that runs in user space

Jeff Dike | 3 Sep 2008 19:54

Re: [uml-user] can't setup networking with host ubuntu 8.04

On Sat, Aug 30, 2008 at 08:59:34PM +0700, shah khadafi wrote:
> i want to connect my host Ubuntu 8.04 (ip address 192.168.0.254) with my 2
> UML instances (ip address 192.168.0.253 and 192.168.0.252).
> what that must i using to connects between host with my UML?

Are you following some published HOWTO for starting networking on UML?
If not, you might look at
http://user-mode-linux.sourceforge.net/network.html

				Jeff

--

-- 
Work email - jdike at linux dot intel dot com

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kalyanasundaram s | 8 Sep 2008 10:27

[uml-user] How do i compile my module for UML kernel image

Hi,
I have my kernel version "2.6.25.11-0.1-default" I compiled my module on the host system and loaded on with the UML kernel image 2.6.24-rc7-dirty which is available in the UML home page.

I get a version magic error. How should i solve it? How can i compile my module to the lower version(2.6.24-rc7).

I also tried compiling the UML from the scratch. I could build the kernel image with my opensuse11 box.
But i could not get a proper working file system. I get segfault saying

[42949373.360000] VFS: Cannot open root device "./FedoraCore5-x86-root_fs" or unknown-block(0,0)
[42949373.360000] Please append a correct "root=" boot option; here are the available partitions:

Thanks,
-Kalyan

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bdupree | 8 Sep 2008 17:26

[uml-user] UML Utilities Build Problem

Hi,

The build of the latest UML utilities fails when trying to build uml-mount
because the local "fuse" directory is missing. All other utils build fine.

--Bill DuPree

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David Francisco Rodriguez Perez | 12 Sep 2008 01:18

[uml-user] Interrupts

Hi All

I want to be able to generate an external event to the UML (eg. like a signal, message, etc) from the host, so that it triggers a UML drivers's interrupt handler to run. So I would like to know what way I could do that. My objective is that in a real hardware we have interrupts for detecting some hardware conditions. For example a new line board has been plugged. I would assume this can be done similar as the console driver is working accepting input from the uml_mconsole utility. Pls let me know if you have any ideas.

Thanks

David

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Paulo da Silva | 13 Sep 2008 03:10

[uml-user] Too slow ...

Hi!

I am using UML for a long time. It always took some time to boot.

But now, after moving to 2.6.25 kernel it takes no less than 15 minutes 
to boot!!!
In this time, my laptop (4Gb RAM Intel core duo 2.4GHz) does not make 
any relevant use of the CPU and there is almost no hd accesses!!!

What could be wrong?

Thanks for any help.

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Flavio | 13 Sep 2008 09:23

Re: [uml-user] Too slow ...

2008/9/13 Paulo da Silva <psdasilva <at> esoterica.pt>
>
>
> I am using UML for a long time. It always took some time to boot.
>
> But now, after moving to 2.6.25 kernel it takes no less than 15 minutes
> to boot!!!
> In this time, my laptop (4Gb RAM Intel core duo 2.4GHz) does not make
> any relevant use of the CPU and there is almost no hd accesses!!!
>
> What could be wrong?

Hello,

Are you using the skas4 patch?
If not, it is possible to wait a little bit more to boot, but not up
to 15 minutes.

Regards,

Flavio

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Paulo da Silva | 13 Sep 2008 16:02

Re: [uml-user] Too slow ...

Flavio escreveu:
> 2008/9/13 Paulo da Silva <psdasilva <at> esoterica.pt>
>   
>> I am using UML for a long time. It always took some time to boot.
>>
>> But now, after moving to 2.6.25 kernel it takes no less than 15 minutes
>> to boot!!!
>> In this time, my laptop (4Gb RAM Intel core duo 2.4GHz) does not make
>> any relevant use of the CPU and there is almost no hd accesses!!!
>>
>> What could be wrong?
>>     
>
> Hello,
>
> Are you using the skas4 patch?
>   
No. I think it is not available for 2.6.25. I also wasn't using it 
before and it worked, slow but acceptable slow. But now ...
> If not, it is possible to wait a little bit more to boot, but not up
> to 15 minutes.
>
>   
It's a lot strange. The kernel works perfectly except everything is too 
too slow!

There must be something wrong with this kernel and UML. Who could help 
with this? Kernel ppl?

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Haywood Floyd | 14 Sep 2008 00:38

[uml-user] user-mode-linux and Portuguese

Esteemed colleagues,

does anybody knows any information about uml user groups using
Portuguese as idiom/language ?

Thanks for any information.
H.R. Floyd

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shah khadafi | 14 Sep 2008 17:58

[uml-user] howto make system cluster with UML

resource that i have:
my host Ubuntu Hardy Herin 8.04
my 2 virtual machines are :
         Fedora 5 with kernel 2..6.24
         Ubuntu Festy Fawn with kernel 2.6.24

all my resource that i mentioned above was connect chatter.
i was setup networking to all my resource.

what must i am prepare to make system cluster to UML?

my purpose is to simulate system cluster with virtual machine UML.

and what tools or package to make system cluster with UML?

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David Francisco Rodriguez Perez | 15 Sep 2008 02:34

Re: [uml-user] howto make system cluster with UML

I would suggest you to read the user mode linux book by Jeff which includes an example of cluster configuration by the end of the book(chapter 12). It will tell you what utilities you may need.

David

On Sun, Sep 14, 2008 at 8:58 AM, shah khadafi <shahcakep <at> gmail.com> wrote:

resource that i have:
my host Ubuntu Hardy Herin 8.04
my 2 virtual machines are :
         Fedora 5 with kernel 2..6.24
         Ubuntu Festy Fawn with kernel 2.6.24

all my resource that i mentioned above was connect chatter.
i was setup networking to all my resource.

what must i am prepare to make system cluster to UML?

my purpose is to simulate system cluster with virtual machine UML.

and what tools or package to make system cluster with UML?


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