virt February 2016

virt@lists.centos.org

35 participants
26 discussions

How to debug Ubuntu 8.04 LTS guest crash during install?
by Neil Aggarwal 04 Nov '25

04 Nov '25

Hello: I am using kvm on a CentOS 5.4 server. I am trying to install the TunkeyLinux Core appliance found here: http://www.turnkeylinux.org/core I downloaded the ISO file from the web site. Then, I used this command to intall it: virt-install -n tkl-core -r 512 --vcpus=1 --check-cpu --os-type=linux --os-variant=ubuntuhardy -v --accelerate -c /tmp/turnkey-core-2009.10-hardy-x86.iso -f /var/lib/libvirt/images/tkl-core.img -s 15 -b br0 --vnc noautoconsole When I connect to the VNC console, I get the Turnkey linux options screen. I select Install to hard disk from there and it seems to start the install but crashes during the installer startup. This is repeatable so there has to be a way to debug it. I tried turning on the debug option for virt-install but that did not give me any useful info. Any ideas how to debug this? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout

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docker 1.10.2 available
by Lokesh Mandvekar 02 Mar '16

02 Mar '16

Docker 1.10.2 has just been built for virt7-docker-common-candidate https://cbs.centos.org/koji/taskinfo?taskID=78901 Please give it a shot and lemme know if I can proceed with releasing it. Thanks, -- Lokesh Freenode: lsm5 GPG: 0xC7C3A0DD

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installing xen on c7
by Karanbir Singh 29 Feb '16

29 Feb '16

hi, I just noticed that yum install xen does not pull in the xen kernel on c7, is this by design ? -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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XSAs 170 and 154, repository layouts, and centos-release-xen 8-1
by George Dunlap 24 Feb '16

24 Feb '16

I have the following packages going through the CBS: * A CentOS 7 xen-4.6.1-2, with XSAs 170 and 154 * A CentOS 6 xen-4.6.1-2, with XSAs 170 and 154 * A CentOS 6 xen-4.4.3-11, with XSAs 170 All these should show up in mirrors hopefully sometime later today. As usual, please report any problems here. Xen 4.4 only has XSA 170 because at the time the embargo was lifted, I didn't have a suitable backport of XSA-154. It's only applicable when PCI-passthrough is in effect, so it's not that critical. Additionally, we've moved to the new repository layout. Repositories will now be tagged with the release; so C6 will have xen-44 and xen-46, and C7 will have xen-46. For now, the existing xen/ repository will be a symlink -- to xen-44 for C6 and to xen-46 for C7. There will be new centos-release-xen packages coming down the line. As described elsewhere: * centos-release-xen-44 will always point to the xen-44 repository * centos-release-xen-46 will always point to the xen-46 repository * centos-release-xen will (normally) point to whatever the most recent release is. For the time being, the C6 version of centos-release-xen will remain pointing to xen-44. These packages can be installed at the same time; yum will choose the most recent release of all available. = What you need to do (C6 users only) = * If you want to stay on xen-44: yum install centos-release-xen-44 yum remove centos-release-xen * If you want to update to xen-46 and stay there until you choose to update: yum install centos-release-xen-46 yum remove centos-release-xen * If you want to update to xen-46, and also get further updates automatically: yum install centos-release-xen-46 = What you need to do (C7 users) = Much less urgent, since we don't plan to upgrade until 4.8, but: * If you want to stay on 46 until you choose to update: yum install centos-release-xen-46 yum remove centos-release-xen * If you want to get further updates automatically: Do nothing, you're already set.

5 10

(no subject)
by Jochen Wiedmann 24 Feb '16

24 Feb '16

Hi, I've got an LXC container running. Essentially, only core, and openssh-server installed inside the container. Got a shell with lxc-attch -n "containername", but unable to run system-config-firewall. Any ideas, what might be wrong? Thanks, Jochen [root@centos6 /]# unset DISPLAY [root@centos6 /]# system-config-firewall Traceback (most recent call last): File "/usr/bin/system-config-firewall-tui", line 29, in <module> import fw_tui File "/usr/share/system-config-firewall/fw_tui.py", line 34, in <module> import fw_nm File "/usr/share/system-config-firewall/fw_nm.py", line 30, in <module> bus = dbus.SystemBus() File "/usr/lib/python2.6/site-packages/dbus/_dbus.py", line 202, in __new__ private=private) File "/usr/lib/python2.6/site-packages/dbus/_dbus.py", line 108, in __new__ bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop) File "/usr/lib/python2.6/site-packages/dbus/bus.py", line 125, in __new__ bus = cls._new_for_bus(address_or_type, mainloop=mainloop) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory -- The next time you hear: "Don't reinvent the wheel!" http://www.keystonedevelopment.co.uk/wp-content/uploads/2014/10/evolution-o…

1 0

KVM VGA passthru to a linux guest
by mechy2k2000 24 Feb '16

24 Feb '16

I am trying to passthru an AMD HD6800 gpu to a fedora 23 kvm guest. I was able to do this for a windows 7 guest but the fedora guest just doesn't see the card any ideals? Thank you

1 0

Garbled screen after RAM Scrub on boot
by Francis Greaves 23 Feb '16

23 Feb '16

Dear All I am using Centos 7 with Xen 4.6 on a Dell Poweredge T430 When the machine boots, after the 'Scrubbing Free RAM' message, I get a screen filled with little white squares until the login prompt, so I cannot see what is happening as the machine boots. Also there is nothing on the screen when I reboot. My /etc/default/grub is GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_CMDLINE_LINUX="crashkernel=auto rhgb intremap=no_x2apic_optout" GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=13312M,max:14336M dom0_max_vcpus=6 dom0_vcpus_pin" GRUB_GFXMODE=1024x768 GRUB_GFXPAYLOAD_LINUX=keep GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk=xen nomodeset" I have tried setting (for a 1024x768 resolution) vga=792 in the GRUB_CMDLINE_LINUX and commenting out GRUB_GFXMODE and GRUB_GFXPAYLOAD_LINUX, but this makes no difference What am I doing wrong? Regards Francis

5 8

Reminder: Virt SIG meeting today at 1500 UTC (note changed time)
by George Dunlap 23 Feb '16

23 Feb '16

Just a reminder, we'll be having the regular Virt SIG meeting today at the new time -- 1500 UTC. -George

1 0

Asking to join CentOS virt-sig for oVirt
by Rafael Martins 23 Feb '16

23 Feb '16

Hi all, I'm Rafael Martins, from oVirt integration team, and I'd like to join the CentOS virt-sig to help with oVirt packaging and maintenance. Please let me know if you have any questions. Thanks, Rafael Martins.

4 3

Kernel 3.18.21-17 and 3.18.21-18 kernel panics
by Shaun Reitan 22 Feb '16

22 Feb '16

I've seen this issue on about 15 different servers now. Anybody else seeing this? Screenshot: http://imgur.com/cBcwr8l I also have a video of the boot process if that will be helpful. -- Shaun Reitan

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virt February 2016