[CentOS-virt] xm attach-block reboots entire server
I'm still trying to get xen working before Centos 6 and KVM just for experience. I seem to be able to do most of what I what with VMs, but I've run into another problem with CD/DVDs. I can get a DVD mounted on the host domain just fine, but when I try and attach-block to a running guest VM, the entire server reboots. I've tried many different commands versions based on what Google finds, but I'm not getting anywhere. I end up using scp to copy the data from the host to the guest. The guest is basically defined as a full virtualized domain. I'm using /dev/scd0 as the device (it's listed on the mount command) as both frontend and backend devices. And I've tried a few other devices as well, but the same result. Anyone know of a reason or fix, please? steve campbell ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] xm attach-block reboots entire server
On 06/07/2011 13:03, Steve Campbell wrote: I'm still trying to get xen working before Centos 6 and KVM just for experience. I seem to be able to do most of what I what with VMs, but I've run into another problem with CD/DVDs. I can get a DVD mounted on the host domain just fine, but when I try and attach-block to a running guest VM, the entire server reboots. I've tried many different commands versions based on what Google finds, but I'm not getting anywhere. I end up using scp to copy the data from the host to the guest. The guest is basically defined as a full virtualized domain. I'm using /dev/scd0 as the device (it's listed on the mount command) as both frontend and backend devices. And I've tried a few other devices as well, but the same result. This should be easy. Use attach-disk, not attach-block. Unmount on the host before mounting on the domU. See the attach-disk commands in my reply to one of your other mails. The device is /dev/sr0 on SL6. Give it a go, and post your exact commands. BTW, I gave up waiting for Centos-6 long ago. SL6 works just fine with KVM. Haven't tried Xen on it yet - my Xen domains are on F8. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] xm attach-block reboots entire server
On 7/6/2011 10:42 AM, PLD wrote: On 06/07/2011 13:03, Steve Campbell wrote: I'm still trying to get xen working before Centos 6 and KVM just for experience. I seem to be able to do most of what I what with VMs, but I've run into another problem with CD/DVDs. I can get a DVD mounted on the host domain just fine, but when I try and attach-block to a running guest VM, the entire server reboots. I've tried many different commands versions based on what Google finds, but I'm not getting anywhere. I end up using scp to copy the data from the host to the guest. The guest is basically defined as a full virtualized domain. I'm using /dev/scd0 as the device (it's listed on the mount command) as both frontend and backend devices. And I've tried a few other devices as well, but the same result. This should be easy. Use attach-disk, not attach-block. Unmount on the host before mounting on the domU. See the attach-disk commands in my reply to one of your other mails. The device is /dev/sr0 on SL6. Give it a go, and post your exact commands. BTW, I gave up waiting for Centos-6 long ago. SL6 works just fine with KVM. Haven't tried Xen on it yet - my Xen domains are on F8. Google, in this case, was not my friend, since it pointed me to attach-block instead of attach-disk. Rereading the previous emails, I see where I was errant in using what google was suggesting. Thanks for the help, all. steve ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] xm attach-block reboots entire server
On 07/06/2011 07:17 PM, Steve Campbell wrote: On 7/6/2011 10:42 AM, PLD wrote: On 06/07/2011 13:03, Steve Campbell wrote: I'm still trying to get xen working before Centos 6 and KVM just for experience. I seem to be able to do most of what I what with VMs, but I've run into another problem with CD/DVDs. I can get a DVD mounted on the host domain just fine, but when I try and attach-block to a running guest VM, the entire server reboots. I've tried many different commands versions based on what Google finds, but I'm not getting anywhere. I end up using scp to copy the data from the host to the guest. The guest is basically defined as a full virtualized domain. I'm using /dev/scd0 as the device (it's listed on the mount command) as both frontend and backend devices. And I've tried a few other devices as well, but the same result. This should be easy. Use attach-disk, not attach-block. Unmount on the host before mounting on the domU. See the attach-disk commands in my reply to one of your other mails. The device is /dev/sr0 on SL6. Give it a go, and post your exact commands. BTW, I gave up waiting for Centos-6 long ago. SL6 works just fine with KVM. Haven't tried Xen on it yet - my Xen domains are on F8. Google, in this case, was not my friend, since it pointed me to attach-block instead of attach-disk. Rereading the previous emails, I see where I was errant in using what google was suggesting. Thanks for the help, all. The fact that the server reboots is still a pretty serious bug though. It doesn't matter that you issued the wrong command the system should never ever do that. Regards, Dennis ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
