Hey Guys, just wondering why RHEL dropped support for Xen, does anyone know why or where to find some good answers? _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Hello Alex, Red Hat dropped the Xen support because of the fact that they are support primary KVM. They are doing this because of a few facts: 1. The most of development on virtualization Red Hat is doing on KVM 2. The design of KVM requires hardware support but is much easier as the design of Xen 3. The code base is much smaller I think. 4. KVM was very early merged to mainline kernel, Xen now also is merged to mainline kernel but in the time where Red Hat dropped Xen only KVM was in mainline kernel. These are facts were some discussion can be done but I think they are comprehendable. Best Regards 2013/1/29 Alex Bailey <bailey.alex@live.com>> Hey Guys, > > just wondering why RHEL dropped support for Xen, does anyone know why or > where to find some good answers? > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
i wanna know that will redhat get xen back on rhel7???? Date: Tue, 29 Jan 2013 10:14:35 +0100 From: mailinglists.tech@gmail.com To: bailey.alex@live.com CC: xen-users@lists.xen.org Subject: Re: [Xen-users] Why did RHEL drop Xen support? Hello Alex, Red Hat dropped the Xen support because of the fact that they are support primary KVM. They are doing this because of a few facts: 1. The most of development on virtualization Red Hat is doing on KVM 2. The design of KVM requires hardware support but is much easier as the design of Xen 3. The code base is much smaller I think. 4. KVM was very early merged to mainline kernel, Xen now also is merged to mainline kernel but in the time where Red Hat dropped Xen only KVM was in mainline kernel. These are facts were some discussion can be done but I think they are comprehendable. Best Regards 2013/1/29 Alex Bailey <bailey.alex@live.com> Hey Guys, just wondering why RHEL dropped support for Xen, does anyone know why or where to find some good answers? _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
I think they don''t will do this. But let''s define what is meant when we say they don''t support Xen. From the view of Red Hat they simply don''t package Xen and don''t have Xen kernels in there repository. But you should be able to simply build Xen and a Dom0/DomU ready kernel on a Red Hat System. So if you have actual Red Hat Systems I think they are on kernel 2.6.X you will need to patch the kernel to get Dom0 support if there are patches available for this version. You also could take a kernel from kernel.org and compile it with Xen support. If the kernel is 3.2+ everything should be in the kernel out of the box so you could rebuild the source packages. Xen simply can be built from the tarball which can be found at xen.org. Everything should work well with that. Best Regards 2013/1/29 linbao <girl111_2002@hotmail.com>> i wanna know that will redhat get xen back on rhel7???? > > ------------------------------ > Date: Tue, 29 Jan 2013 10:14:35 +0100 > From: mailinglists.tech@gmail.com > To: bailey.alex@live.com > CC: xen-users@lists.xen.org > Subject: Re: [Xen-users] Why did RHEL drop Xen support? > > > Hello Alex, > > Red Hat dropped the Xen support because of the fact that they are support > primary KVM. They are doing this because of a few facts: > > 1. The most of development on virtualization Red Hat is doing on KVM > 2. The design of KVM requires hardware support but is much easier as the > design of Xen > 3. The code base is much smaller I think. > 4. KVM was very early merged to mainline kernel, Xen now also is merged to > mainline kernel but in the time where Red Hat dropped Xen only KVM was in > mainline kernel. > > These are facts were some discussion can be done but I think they are > comprehendable. > > Best Regards > > > 2013/1/29 Alex Bailey <bailey.alex@live.com> > > Hey Guys, > > just wondering why RHEL dropped support for Xen, does anyone know why or > where to find some good answers? > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users > > > > _______________________________________________ Xen-users mailing list > Xen-users@lists.xen.org http://lists.xen.org/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
> 2013/1/29 tech mailinglists <mailinglists.tech@gmail.com>: > You also could take a kernel from > kernel.org and compile it with Xen support. > > Xen simply can be built from the tarball which can be found at xen.org.http://au1.mirror.crc.id.au repository can be used which contains Dom0 capable kernels and xen packages for RHEL6.
Well, I ment support, If they don''t provide packages, then they likely don''t support it, if they don''t support it, and your having some problems, will they provide technical assistance? I doubt it. I just find it curious that they dropped their support for Xen, and am just wondering if I am wasting my time trying to learn Xen, I''m not sure, Just seems that the new hardware coming provides plenty of support for type 2''s with perhaps minimal overhead? Date: Tue, 29 Jan 2013 10:29:42 +0100 Subject: Re: [Xen-users] Why did RHEL drop Xen support? From: mailinglists.tech@gmail.com To: girl111_2002@hotmail.com CC: bailey.alex@live.com; xen-users@lists.xen.org I think they don''t will do this. But let''s define what is meant when we say they don''t support Xen. From the view of Red Hat they simply don''t package Xen and don''t have Xen kernels in there repository. But you should be able to simply build Xen and a Dom0/DomU ready kernel on a Red Hat System. So if you have actual Red Hat Systems I think they are on kernel 2.6.X you will need to patch the kernel to get Dom0 support if there are patches available for this version. You also could take a kernel from kernel.org and compile it with Xen support. If the kernel is 3.2+ everything should be in the kernel out of the box so you could rebuild the source packages. Xen simply can be built from the tarball which can be found at xen.org. Everything should work well with that. Best Regards 2013/1/29 linbao <girl111_2002@hotmail.com> i wanna know that will redhat get xen back on rhel7???? Date: Tue, 29 Jan 2013 10:14:35 +0100 From: mailinglists.tech@gmail.com To: bailey.alex@live.com CC: xen-users@lists.xen.org Subject: Re: [Xen-users] Why did RHEL drop Xen support? Hello Alex, Red Hat dropped the Xen support because of the fact that they are support primary KVM. They are doing this because of a few facts: 1. The most of development on virtualization Red Hat is doing on KVM 2. The design of KVM requires hardware support but is much easier as the design of Xen 3. The code base is much smaller I think. 4. KVM was very early merged to mainline kernel, Xen now also is merged to mainline kernel but in the time where Red Hat dropped Xen only KVM was in mainline kernel. These are facts were some discussion can be done but I think they are comprehendable. Best Regards 2013/1/29 Alex Bailey <bailey.alex@live.com> Hey Guys, just wondering why RHEL dropped support for Xen, does anyone know why or where to find some good answers? _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Hi, I can''t speak for RedHat, but the reasons at the time appeared to have been mainly technical, with the main reason being the fact that Xen support was not upstreamed into the Linux Kernel at the time (hardware, porting costs, etc. all follow from this). Whether the size of codebase was a reason is actually debatable: it depends on how you define KVM and Xen and measure size (e.g. do the Xen codebase contains testcode and toolstacks, the KVM codebase doesn''t - KVM user components depend heavily on QEMU, which is quite a sizeable codebase - etc.). Of course since then, RedHat has heavily invested in KVM. The primary technical reasons why RedHat may have done this, by now have gone away. Besides building Xen from source, increasing momentum to bring Xen back into the RedHat world is actually pioneered by a number of Xen and CentOS community members. For example, see https://fosdem.org/2013/schedule/event/xen_centos6/ ... I will leave things at this, as I don''t want to take away their thunder in the coming weeks when this project starts to become more public. I would expect that there also will be follow-up projects for CentOS 7, etc. Lars On 29/01/2013 09:29, tech mailinglists wrote:> I think they don''t will do this. But let''s define what is meant when > we say they don''t support Xen. From the view of Red Hat they simply > don''t package Xen and don''t have Xen kernels in there repository. > > But you should be able to simply build Xen and a Dom0/DomU ready > kernel on a Red Hat System. So if you have actual Red Hat Systems I > think they are on kernel 2.6.X you will need to patch the kernel to > get Dom0 support if there are patches available for this version. You > also could take a kernel from kernel.org <http://kernel.org> and > compile it with Xen support. If the kernel is 3.2+ everything should > be in the kernel out of the box so you could rebuild the source packages. > > Xen simply can be built from the tarball which can be found at xen.org > <http://xen.org>. Everything should work well with that. > > Best Regards > > > 2013/1/29 linbao <girl111_2002@hotmail.com > <mailto:girl111_2002@hotmail.com>> > > i wanna know that will redhat get xen back on rhel7???? > > ------------------------------------------------------------------------ > Date: Tue, 29 Jan 2013 10:14:35 +0100 > From: mailinglists.tech@gmail.com <mailto:mailinglists.tech@gmail.com> > To: bailey.alex@live.com <mailto:bailey.alex@live.com> > CC: xen-users@lists.xen.org <mailto:xen-users@lists.xen.org> > Subject: Re: [Xen-users] Why did RHEL drop Xen support? > > > Hello Alex, > > Red Hat dropped the Xen support because of the fact that they are > support primary KVM. They are doing this because of a few facts: > > 1. The most of development on virtualization Red Hat is doing on KVM > 2. The design of KVM requires hardware support but is much easier > as the design of Xen > 3. The code base is much smaller I think. > 4. KVM was very early merged to mainline kernel, Xen now also is > merged to mainline kernel but in the time where Red Hat dropped > Xen only KVM was in mainline kernel. > > These are facts were some discussion can be done but I think they > are comprehendable. > > Best Regards > > > 2013/1/29 Alex Bailey <bailey.alex@live.com > <mailto:bailey.alex@live.com>> > > Hey Guys, > > just wondering why RHEL dropped support for Xen, does anyone > know why or where to find some good answers? > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org <mailto:Xen-users@lists.xen.org> > http://lists.xen.org/xen-users > > > > _______________________________________________ Xen-users mailing > list Xen-users@lists.xen.org <mailto:Xen-users@lists.xen.org> > http://lists.xen.org/xen-users > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users