Nested virtualization: run RHEVH inside KVM












0















I have laptop with 16GB RAM, trying to install Red Hat Enterprise Virtualization Hypervisor 3.3 on Virtual Machine Manager (KVM) based guest, but it gives error "Virtualization Hardware not found".



What's possible solution for this error?
Like in OracleVM box there is a option to enable support for Virtualization for guest machine? Is there anything like same in Virtual Machine Manager?



Is it possible to test RHEV 3.3 on any of the virtualization like KVM, OracleVM box or VMWare Workstation 10?










share|improve this question

























  • Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

    – mirimir
    Jun 9 '14 at 9:05











  • @mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

    – Gilles
    Jun 9 '14 at 23:05











  • Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

    – Gilles
    Jun 10 '14 at 0:09











  • Nested virtualization is a rare need. What do you want it for?

    – Gilles
    Jun 10 '14 at 0:10











  • Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

    – user3134198
    Jun 12 '14 at 7:55


















0















I have laptop with 16GB RAM, trying to install Red Hat Enterprise Virtualization Hypervisor 3.3 on Virtual Machine Manager (KVM) based guest, but it gives error "Virtualization Hardware not found".



What's possible solution for this error?
Like in OracleVM box there is a option to enable support for Virtualization for guest machine? Is there anything like same in Virtual Machine Manager?



Is it possible to test RHEV 3.3 on any of the virtualization like KVM, OracleVM box or VMWare Workstation 10?










share|improve this question

























  • Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

    – mirimir
    Jun 9 '14 at 9:05











  • @mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

    – Gilles
    Jun 9 '14 at 23:05











  • Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

    – Gilles
    Jun 10 '14 at 0:09











  • Nested virtualization is a rare need. What do you want it for?

    – Gilles
    Jun 10 '14 at 0:10











  • Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

    – user3134198
    Jun 12 '14 at 7:55
















0












0








0








I have laptop with 16GB RAM, trying to install Red Hat Enterprise Virtualization Hypervisor 3.3 on Virtual Machine Manager (KVM) based guest, but it gives error "Virtualization Hardware not found".



What's possible solution for this error?
Like in OracleVM box there is a option to enable support for Virtualization for guest machine? Is there anything like same in Virtual Machine Manager?



Is it possible to test RHEV 3.3 on any of the virtualization like KVM, OracleVM box or VMWare Workstation 10?










share|improve this question
















I have laptop with 16GB RAM, trying to install Red Hat Enterprise Virtualization Hypervisor 3.3 on Virtual Machine Manager (KVM) based guest, but it gives error "Virtualization Hardware not found".



What's possible solution for this error?
Like in OracleVM box there is a option to enable support for Virtualization for guest machine? Is there anything like same in Virtual Machine Manager?



Is it possible to test RHEV 3.3 on any of the virtualization like KVM, OracleVM box or VMWare Workstation 10?







linux virtual-machine kvm nested-virtualization rhev






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 31 '16 at 21:41









Eddie C.

26727




26727










asked Jun 9 '14 at 7:23









user3134198user3134198

3321413




3321413













  • Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

    – mirimir
    Jun 9 '14 at 9:05











  • @mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

    – Gilles
    Jun 9 '14 at 23:05











  • Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

    – Gilles
    Jun 10 '14 at 0:09











  • Nested virtualization is a rare need. What do you want it for?

    – Gilles
    Jun 10 '14 at 0:10











  • Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

    – user3134198
    Jun 12 '14 at 7:55





















  • Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

    – mirimir
    Jun 9 '14 at 9:05











  • @mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

    – Gilles
    Jun 9 '14 at 23:05











  • Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

    – Gilles
    Jun 10 '14 at 0:09











  • Nested virtualization is a rare need. What do you want it for?

    – Gilles
    Jun 10 '14 at 0:10











  • Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

    – user3134198
    Jun 12 '14 at 7:55



















Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

– mirimir
Jun 9 '14 at 9:05





Although I don't know either RHEVH or KVM, it's generally impossible to use a VM as a VM host. That's because the virtualization software on the host needs direct access to hardware resources. And that's impossible on VMs. As I recall, it is possible to use VMware and VirtualBox VMs as OpenVZ hosts, but that's not saying much ;)

– mirimir
Jun 9 '14 at 9:05













@mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

– Gilles
Jun 9 '14 at 23:05





@mirimir That's called “nested virtualization”, and it is possible with some combinations of VM software — generally only with recent high-end processors that provide some hardware features that make it easier.

– Gilles
Jun 9 '14 at 23:05













Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

– Gilles
Jun 10 '14 at 0:09





Nested KVM is possible, so RHEV in KVM might be possible. The 3.3 manual doesn't mention that possibility: it only lists physical CPU models as possible hosts. There isn't an explicit sentence “must be installed on a physical server” in 3.0 though.

– Gilles
Jun 10 '14 at 0:09













Nested virtualization is a rare need. What do you want it for?

– Gilles
Jun 10 '14 at 0:10





Nested virtualization is a rare need. What do you want it for?

– Gilles
Jun 10 '14 at 0:10













Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

– user3134198
Jun 12 '14 at 7:55







Gilles Thank you very much for your link, but when I am adding module kvm-intel with nested module loaded grub2 it returns the following error: FATAL: Error inserting kvm_intel (/lib/modules/2.6.32-431.17.1.el6.centos.plus.x86_64/kernel/arch/x86/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg) Please can you help me with this.

– user3134198
Jun 12 '14 at 7:55












2 Answers
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Its possible run rhev 3.3 into a kvm virtualized machine. You have to enable cpu virtualization options (from BIOS), and then install RHEL as Operating System. Then, once installed RHEL, you have to install RHEV 3.3 (if your private channels are enable and whole).



But, if you want to use KVM as hypervisor, it is not possible, for the reasons before mentioned.



Greetings






share|improve this answer































    0














    You need to configure nesting on the laptop before you try to run a hypervisor inside a VM. In any case, this is not going to be a very fast or anywhere production worthy setup. Good enough for testing and demos though






    share|improve this answer























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      2 Answers
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      2 Answers
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      Its possible run rhev 3.3 into a kvm virtualized machine. You have to enable cpu virtualization options (from BIOS), and then install RHEL as Operating System. Then, once installed RHEL, you have to install RHEV 3.3 (if your private channels are enable and whole).



      But, if you want to use KVM as hypervisor, it is not possible, for the reasons before mentioned.



      Greetings






      share|improve this answer




























        1














        Its possible run rhev 3.3 into a kvm virtualized machine. You have to enable cpu virtualization options (from BIOS), and then install RHEL as Operating System. Then, once installed RHEL, you have to install RHEV 3.3 (if your private channels are enable and whole).



        But, if you want to use KVM as hypervisor, it is not possible, for the reasons before mentioned.



        Greetings






        share|improve this answer


























          1












          1








          1







          Its possible run rhev 3.3 into a kvm virtualized machine. You have to enable cpu virtualization options (from BIOS), and then install RHEL as Operating System. Then, once installed RHEL, you have to install RHEV 3.3 (if your private channels are enable and whole).



          But, if you want to use KVM as hypervisor, it is not possible, for the reasons before mentioned.



          Greetings






          share|improve this answer













          Its possible run rhev 3.3 into a kvm virtualized machine. You have to enable cpu virtualization options (from BIOS), and then install RHEL as Operating System. Then, once installed RHEL, you have to install RHEV 3.3 (if your private channels are enable and whole).



          But, if you want to use KVM as hypervisor, it is not possible, for the reasons before mentioned.



          Greetings







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jan 13 '15 at 22:39









          lyonnlyonn

          111




          111

























              0














              You need to configure nesting on the laptop before you try to run a hypervisor inside a VM. In any case, this is not going to be a very fast or anywhere production worthy setup. Good enough for testing and demos though






              share|improve this answer




























                0














                You need to configure nesting on the laptop before you try to run a hypervisor inside a VM. In any case, this is not going to be a very fast or anywhere production worthy setup. Good enough for testing and demos though






                share|improve this answer


























                  0












                  0








                  0







                  You need to configure nesting on the laptop before you try to run a hypervisor inside a VM. In any case, this is not going to be a very fast or anywhere production worthy setup. Good enough for testing and demos though






                  share|improve this answer













                  You need to configure nesting on the laptop before you try to run a hypervisor inside a VM. In any case, this is not going to be a very fast or anywhere production worthy setup. Good enough for testing and demos though







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jun 10 '14 at 8:24









                  dyasnydyasny

                  94248




                  94248






























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