boot from xen hypervisor

boot from xen hypervisor

[Zvclproject Zvclproject]

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Dear All,

Acutely I'm working to install the xenserver from source code but I'm still
stuck in the booting phase of the xen hypervisor I can't modify the grub of
the CENTOS the documentation is omit that in the xenproject website. Also
the dom0 installation is unclear for me.
I have followed following links

https://wiki.xenproject.org/wiki/Compiling_Xen_From_Source
https://wiki.xen.org/wiki/Xen_4.2_Build_From_Source_On_RHEL_CentOS_Fedora
https://wiki.xen.org/wiki/Dom0_Kernels_for_Xen
https://wiki.xen.org/wiki/XenParavirtOps
https://wiki.xenproject.org/wiki/XenServer
https://wiki.xenserver.org/Category:XCP

and more than that, but unfortunately I can't continue.

Can you do a demonstration for beginner about the xen source code and the
sequence of installation it from source code.


Thank you very much

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Re: boot from xen hypervisor

[Wei Liu]

Hi

On Tue, Jan 24, 2017 at 09:45:46AM -0500, Zvclproject Zvclproject wrote:
> Dear All,
> 
> Acutely I'm working to install the xenserver from source code but I'm still
> stuck in the booting phase of the xen hypervisor I can't modify the grub of

Note that XenServer != upstream Xen.

> the CENTOS the documentation is omit that in the xenproject website. Also
> the dom0 installation is unclear for me.
> I have followed following links
> 
> https://wiki.xenproject.org/wiki/Compiling_Xen_From_Source
> https://wiki.xen.org/wiki/Xen_4.2_Build_From_Source_On_RHEL_CentOS_Fedora
> https://wiki.xen.org/wiki/Dom0_Kernels_for_Xen
> https://wiki.xen.org/wiki/XenParavirtOps


> https://wiki.xenproject.org/wiki/XenServer
> https://wiki.xenserver.org/Category:XCP

You shouldn't need these two.

> 
> and more than that, but unfortunately I can't continue.
> 
> Can you do a demonstration for beginner about the xen source code and the
> sequence of installation it from source code.
> 
> 

Please be specific about your goals and your problems. What is not clear
in those documents?

Depending on your distribution there might be different quirks to
install Xen. 

My known working configuration is with Debian, but I believe there are
other people who use CentOS.

Wei.


> Thank you very much

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> https://lists.xen.org/xen-devel


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Re: boot from xen hypervisor

[Zvclproject Zvclproject]

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Hi Wei,

I have compile xen hypervisor from source code following the procedure in
the wiki to install the xen from source code, my development environment is
centos7
uname -a
Linux myxen 3.10.0-514.6.1.el7.x86_64 #1 SMP Wed Jan 18 13:06:36 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux

I compile the source code then I installed it after that I need to change
the grub file of the centos such that I can boot to xen hypervisor and I
must also install the DOM0 but I can't see the boot order in the  grub as
following image depict

[image: Inline image 1]


I can't find documents that can help me to do that.

please your advises

Thanks
Tariq



On Tue, Jan 24, 2017 at 10:19 AM, Wei Liu <wei.liu2@citrix.com> wrote:

> Hi
>
> On Tue, Jan 24, 2017 at 09:45:46AM -0500, Zvclproject Zvclproject wrote:
> > Dear All,
> >
> > Acutely I'm working to install the xenserver from source code but I'm
> still
> > stuck in the booting phase of the xen hypervisor I can't modify the grub
> of
>
> Note that XenServer != upstream Xen.
>
> > the CENTOS the documentation is omit that in the xenproject website. Also
> > the dom0 installation is unclear for me.
> > I have followed following links
> >
> > https://wiki.xenproject.org/wiki/Compiling_Xen_From_Source
> > https://wiki.xen.org/wiki/Xen_4.2_Build_From_Source_On_RHEL_
> CentOS_Fedora
> > https://wiki.xen.org/wiki/Dom0_Kernels_for_Xen
> > https://wiki.xen.org/wiki/XenParavirtOps
>
>
> > https://wiki.xenproject.org/wiki/XenServer
> > https://wiki.xenserver.org/Category:XCP
>
> You shouldn't need these two.
>
> >
> > and more than that, but unfortunately I can't continue.
> >
> > Can you do a demonstration for beginner about the xen source code and the
> > sequence of installation it from source code.
> >
> >
>
> Please be specific about your goals and your problems. What is not clear
> in those documents?
>
> Depending on your distribution there might be different quirks to
> install Xen.
>
> My known working configuration is with Debian, but I believe there are
> other people who use CentOS.
>
> Wei.
>
>
> > Thank you very much
>
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > https://lists.xen.org/xen-devel
>
>

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Re: boot from xen hypervisor

[Wei Liu]

Hi

Please don't top-post and please don't send screenshot to mailing list
because it consumes a lot of bandwidth (every subscriber receives a
copy). ;-)

On Tue, Jan 24, 2017 at 10:38:57AM -0500, Zvclproject Zvclproject wrote:
> Hi Wei,
> 
> I have compile xen hypervisor from source code following the procedure in
> the wiki to install the xen from source code, my development environment is
> centos7
> uname -a
> Linux myxen 3.10.0-514.6.1.el7.x86_64 #1 SMP Wed Jan 18 13:06:36 UTC 2017
> x86_64 x86_64 x86_64 GNU/Linux
> 
> I compile the source code then I installed it after that I need to change
> the grub file of the centos such that I can boot to xen hypervisor and I
> must also install the DOM0 but I can't see the boot order in the  grub as
> following image depict
> 

I'm not sure if CentOS 7 comes with a Dom0-capable kernel.

Debian comes with a Dom0-capable kernel. What I normally do on Debian is
run update-grub as root. Everything is handled for me.

Also CC George who is more knowledgable about CentOS.

Wei.

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Re: boot from xen hypervisor

[George Dunlap]

> On Jan 24, 2017, at 3:44 PM, Wei Liu <wei.liu2@citrix.com> wrote:
> 
> Hi
> 
> Please don't top-post and please don't send screenshot to mailing list
> because it consumes a lot of bandwidth (every subscriber receives a
> copy). ;-)
> 
> On Tue, Jan 24, 2017 at 10:38:57AM -0500, Zvclproject Zvclproject wrote:
>> Hi Wei,
>> 
>> I have compile xen hypervisor from source code following the procedure in
>> the wiki to install the xen from source code, my development environment is
>> centos7
>> uname -a
>> Linux myxen 3.10.0-514.6.1.el7.x86_64 #1 SMP Wed Jan 18 13:06:36 UTC 2017
>> x86_64 x86_64 x86_64 GNU/Linux
>> 
>> I compile the source code then I installed it after that I need to change
>> the grub file of the centos such that I can boot to xen hypervisor and I
>> must also install the DOM0 but I can't see the boot order in the  grub as
>> following image depict
>> 
> 
> I'm not sure if CentOS 7 comes with a Dom0-capable kernel.

CentOS core does *not* come with a Dom0-capable kernel.  But the CentOS Virt SIG packages a dom0 kernel for use with the CentOS Virt SIG Xen packages.

You can get the kernel by installing centos-release-xen, and then doing a “yum update”.

 -George
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