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Re: [MirageOS-devel] Which version of Xen for MirageOS?

On 18 Jan 2014, at 16:17, François Armand <francois.armand.fa@xxxxxxxxx> wrote:

Last week, I had to fight with the Opam environment to get the Hello in Posix generated. This does not relate to Mirage though.

 - I had to regenerate OPAM from sources, getting it from Ubuntu (12.10) package led me to get Mirage 0.9.something instead of 1.0.3

Do you remember which Ubuntu package you used for this?  The reason this goes wrong is because you used OPAM 1.0, which has been end-of-lifed (and so new packages only show up using OPAM 1.1).

Debian unstable (and so eventually Ubuntu) have OPAM 1.1 in their distribution now, so I'm just making sure that we haven't forgotten an OPAM 1.0 somewhere.


 - Based on Anil's recommandation  I had to run apt-get install ocaml-native-compilers

Then everything was fine.
I'll go further with Xen within the next days / week I'll let you know about my issues/success.

2014/1/18 Richard Mortier <Richard.Mortier@xxxxxxxxxxxxxxxx>

On 18 Jan 2014, at 16:01, Richard Mortier wrote:

> On 18 Jan 2014, at 15:53, François Armand wrote:
>> Thanks a lot!
>> Wait! If I understand well enough your own setup, I don't need to run on bare metal!
>> I missed the point, and apologize about that.
>> If I recap:
>> - start a VirtualBox VM with a Linux distrib (presumably 64 bits)
>> - install Xen 4.2 inside that VM, so I guess in your case your Ubuntu 13.04 is running within your Dom0
> roughly, yes. to elaborate-- start VBox, create a 64 bit linux VM, install Ubuntu 13.04. then use the ubuntu packages to install Xen in that VM-- something like "sudo apt-get install xen-hypervisor-4.2-amd64".  (though that was for raring; i notice from the package list that saucy has 4.3 now.)
> you end up with ubuntu 13.04 in dom0 on xen 4.2, and you can use xl (or whatever) to create mirage (or indeed, any other you want) VMs given a vm image and a config file.

ps. i'm starting to put together a blog post describing this and some of the other "getting started with mirage on xen" steps -- feel free to email me (and/or the list) if you come across any problems or gotchas so i can include them.



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