Public bug reported: To fix the issue i added to /etc/modules : xen-gntdev xen-netback xen-blkback
Otherwise , "lsmod | grep xen" doesn't report all three of them loaded. It's impossible to create PV domain. Usual report " vif(0) cannot be connected, hotplug scripts not working" I would guess system kernel' s .config is incorrect. Working configuration (after Dom0 kernel gets loaded) should look like : # ls -l /dev/xen total 0 crw------- 1 root root 10, 55 2011-07-16 18:33 evtchn crw------- 1 root root 10, 56 2011-07-16 18:33 gntdev # lsmod | grep xen xen_evtchn 13172 1 xenfs 18311 1 xen_blkback 23177 0 [permanent] xen_netback 27854 0 [permanent] xen_gntdev 17676 0 ** Affects: ubuntu-xen Importance: Undecided Status: New ** Summary changed: - Loading kernel 3.0.0-5-generic under Xen 4.1 doesn't create /dev/xen/gnttab + Loading kernel 3.0.0-5-generic under Xen 4.1 doesn't create /dev/xen/gntdev ** Description changed: To fix the issue i added to /etc/modules : xen-gntdev xen-netback xen-blkback Otherwise , "lsmod | grep xen" doesn't report all three of them loaded. It's impossible to create PV domain. Usual report " vif(0) cannot be connected, hotplug scripts not working" I would guess system kernel' s .config is incorrect. - Working config should look like : + Working configuration (after Dom0 kernel gets loaded) should look like : # ls -l /dev/xen total 0 crw------- 1 root root 10, 55 2011-07-16 18:33 evtchn crw------- 1 root root 10, 56 2011-07-16 18:33 gntdev # lsmod | grep xen - xen_evtchn 13172 1 - xenfs 18311 1 + xen_evtchn 13172 1 + xenfs 18311 1 xen_blkback 23177 0 [permanent] xen_netback 27854 0 [permanent] xen_gntdev 17676 0 ** Project changed: qemu => ubuntu-xen -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/811593 Title: Loading kernel 3.0.0-5-generic under Xen 4.1 doesn't create /dev/xen/gntdev Status in Xen for Ubuntu: New Bug description: To fix the issue i added to /etc/modules : xen-gntdev xen-netback xen-blkback Otherwise , "lsmod | grep xen" doesn't report all three of them loaded. It's impossible to create PV domain. Usual report " vif(0) cannot be connected, hotplug scripts not working" I would guess system kernel' s .config is incorrect. Working configuration (after Dom0 kernel gets loaded) should look like : # ls -l /dev/xen total 0 crw------- 1 root root 10, 55 2011-07-16 18:33 evtchn crw------- 1 root root 10, 56 2011-07-16 18:33 gntdev # lsmod | grep xen xen_evtchn 13172 1 xenfs 18311 1 xen_blkback 23177 0 [permanent] xen_netback 27854 0 [permanent] xen_gntdev 17676 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-xen/+bug/811593/+subscriptions