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1608 discussions

I would like to verify what are the available options for RAM storage.
by Eliezer Croitoru 13 Mar '16

13 Mar '16

Hey All, I am not sure what the status of the current technology in the market and was wondering if it would be fine to ask specifically here. I am using KVM for a time now and it's great but I have couple doubts. When I am running a test on a specific VM it's mostly on 10k SPINNING disks and they seem to survive like forever now(years...). But I need to run tests on RAM only. Until now what I did was to create a tmpfs, shutdown the VM, move the disk image to the tmpfs, change the disk location on the VM settings and then turn the machine on again when it's on RAM(I cannot 100% control swap since it's the kernel doings..). I am considering what to do next and the options are: - automate the process of migration from one storage to another - buy more ram - buy a very fast SSD? - a combination of RAM + SSD(SWAP) But I do not know exactly what to do. Every choice have it's price and it's unclear to me if OVIRT is the same as RHEV an if not then is this function available there? Eliezer

1 0

USB3 driver?
by ToddAndMargo 05 Mar '16

05 Mar '16

Hi All, Scientific Linux 7.2 # rpm -qa \*kvm\* qemu-kvm-1.5.3-105.el7_2.3.x86_64 pcp-pmda-kvm-3.10.6-2.el7.x86_64 qemu-kvm-common-1.5.3-105.el7_2.3.x86_64 libvirt-daemon-kvm-1.2.17-13.el7_2.3.x86_64 Question: when I set "Controller USB" to "USB3", what USB3 driver do I use to install Window 7? Many thanks, -T -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

2 2

can't mount a bootable flash drive
by ToddAndMargo 04 Mar '16

04 Mar '16

Hi All, Scientific Linux 7.2 # rpm -qa \*kvm\* qemu-kvm-1.5.3-105.el7_2.3.x86_64 pcp-pmda-kvm-3.10.6-2.el7.x86_64 qemu-kvm-common-1.5.3-105.el7_2.3.x86_64 libvirt-daemon-kvm-1.2.17-13.el7_2.3.x86_64 I can mount NTFS flash drives on my Windows virtual machines by Add Hardware -> USB Host Device. They work fine. Except for one bootable Windows 7 Pro OEM x 64 USB flash drive I use for installing Windows 7. In Windows, under devices I get a bang mark saying the device failed to start. This same flash drive, when set as the bootable drive does boot into the Windows 7 install dialog. What am I doing wrong? Many thanks, -T -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1 0

Virtualized Server 2008R2 can't boot with multi-core
by Emmanuel Noobadmin 03 Mar '16

03 Mar '16

I previously tested a fresh install of Windows 2008R2 using the free evaluation download from Microsoft and worked without much hassle. However, when converting an actual physical W2008R2 machine to virtual using Windows' bare metal recovery, it would not boot with more than 1 core assigned. I''ve tried various suggestions such as - adding/removing <hyperv><relaxed state='on'></hyperv> - setting cpu type to core2duo and requiring nx But neither helps, basically a brief blinking cursor in the upper left corner after BIOS/EFI then blank. Any suggestion on how to fix this? Using CentOS 7, yum updated to latest ( 3.10.0-327.10.1.el7.x86_64) Physical server is UEFI so loader set use ovmf-x64/OVMF_CODE-pure-efi.fd

1 0

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

2 4

oVirt Host 3.6.3 available
by Sandro Bonazzola 02 Mar '16

02 Mar '16

oVirt 3.6.3 has been released yesterday upstream [1]. Host packages are now available in testing repository [2] and will be released soon. You can find more information on how to test it in oVirt How To wiki page[3] [1] http://lists.ovirt.org/pipermail/announce/2016-March/000237.html [2] http://buildlogs.centos.org/centos/7/virt/x86_64/ovirt-3.6 [3] https://wiki.centos.org/HowTos/oVirt -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

1 0

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

8 13

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

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