On Sat, Sep 13, 2008 at 12:14 PM, Felix Schwarz <felix schwarz web de> wrote:
Marco Guazzone schrieb:
I've just installed the kernel-xen-2.6.25.3-2.fc9.x86_64 on my FC9 for experimenting with XEN.
Unfortunately when I boot from grub with this kernel (as a host system) the system reboot after the message: --- [snip] --- XEN relinquishing vga console --- [/snip] ---
kernel-xen from FC9 does not provide Dom0 ("host") functionality. Currently there is no usable Xen Dom0 in Fedora (besides Fedora 8 where support will be dropped in a few months).
If you want to have a stable Xen Dom0, you should go for CentOS oder RHEL.
If you just want "virtualization", you should look at KVM which is the upcoming "standard" virtualization for RHEL. Red Hat announced a few days ago that they think about dropping Xen completely when RHEL 5 is not supported any longer (2014).
fs
Thank you for the info... I didn't know that. Sorry for the question but if I understand the kernel-xen RPM is unusable, is it? If so, why does it exist? If not, how can be used?
Thank you so much!
Cheers,
-- Marco
Am Sat, 13 Sep 2008 15:55:15 +0200 schrieb "Marco Guazzone" marco.guazzone@gmail.com:
Sorry for the question but if I understand the kernel-xen RPM is unusable, is it? If so, why does it exist? If not, how can be used?
It is not useable as a Dom0 but it is needed to run a DomU or in other words: this kernel is not for use as a control for Xen. It is to use in a virtual maschine. This kernel uses paravirtops to send syscalls to the xen hypervisor.
Regards
Falko
Am Sat, 13 Sep 2008 15:55:15 +0200 schrieb "Marco Guazzone" marco.guazzone@gmail.com:
Sorry for the question but if I understand the kernel-xen RPM is unusable, is it? If so, why does it exist? If not, how can be used?
It is not useable as a Dom0 but it is needed to run a DomU or in other words: this kernel is not for use as a control for Xen. It is to use in a virtual maschine. This kernel uses paravirtops to send syscalls to the xen hypervisor.
Regards
Falko
Marco Guazzone schrieb:
Sorry for the question but if I understand the kernel-xen RPM is unusable, is it?
...
It's not "unusable". It just provides DomU functionality so with kernel-xen you can run a virtualized Fedora as *guest* on a Xen Dom0 which runs under Fedora 8 oder CentOS/RHEL 5.
There's work going on to get Xen's Dom0 functionality in the main Linux kernel. Then Xen support will re-appear in Fedora (probably even a bit earlier). Please consult the archives if you want to learn more about that.
fs
PS: Part of the problem is the behavior of the Xen developers which had other priorities than keeping up with the latest Linux kernel versions/getting their code into the vanilla kernel. Therefore they put an enormous maintenance burden on distributors which Red Hat was not willing to do anymore.