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1609 discussions

grub2 for pv
by Christoph 21 Feb '17

21 Feb '17

Hi could you add pv grub2 images to the packages? I've tried it following this howto: https://blog.xenproject.org/2015/01/07/using-grub-2-as-a-bootloader-for-xen… and it works really good... It would be nice to have it in the rpm packages. -- ---------- Greetz Christoph

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Docker container scanner on CentOS?
by Rafał Radecki 21 Feb '17

21 Feb '17

Hi All. I am currently searching for a decent image/container/registry scanner. I would like to be able to check images for CVE, at the moment I am using rhel/centos/ubuntu/debian based images. I tried on CentOS7: - openscap (oscap-docker): needs atomic for installation, allows scanning of rhel based images only; - atomic: allows scanning of rhel based images only; - clair: usable in theory for rhel/centos/ubuntu/debian images but in practice I encountered problems with analyze-local-images and hyperclair "cli" tools and API does not allow automatization; - banyan collector/dockscan/drydock: seem to be stale or not enough mature to be considered; - nessus: seems to be an overkill for my usecase. I am now looking into: - aqua (commercial); - twistlock (commercial); - blackduck docker scanner (commercial). Can you share info about what you are using to scan docker images? Any proposals for my usecase? Thanks! BR, Rafal.

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Network Problem
by Günther J. Niederwimmer 20 Feb '17

20 Feb '17

Hello List, I have two Server with CentOS 7.(3) and KVM, on both a have the Problem with the network ? I have configured 4 NIC on the slave KVM, the most time only 3 NIC is starting sometime only 2 NIC ? two nic are configured as "hostdev" the other two NIC are configures from two bridge (Host) the default KVM Bridge and a created "br0" over a phys NIC. The most time this br0 -> eth1 is lost in the KVM Client ? after a restart mostly all is OK. Have any a idea why ? -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

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Xen updates in the Testing Repo for XSA-207 and XSA-208
by Johnny Hughes 18 Feb '17

18 Feb '17

There are xen rpms in the testing repos for XSA 207 and 208 in the testing repos (xen-4.4.4-18.el6, xen-4.6.3-7.el6, xen-4.6.3-7.el7). You can enable the applicable centos-virt-xen-testing repo in your /etc/yum.repos.d/CentOS-Xen.repo file. Please report positive and negative tests to this list so we can promote the updates to the main repos. Thanks, Johnny Hughes

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USB passthrough for usb wireless nic adapter
by C. L. Martinez 03 Feb '17

03 Feb '17

Hi all, I am trying to use usb passthrough for an usb wireless adapter to a kvm guest under a CentOS7 host. Guest can connect to an AP and sometimes receives an IP and sometimes not. But when and IP address is assigned by an AP (and defaultroute), nothing works. If I try to resolv any host like for example www.google.com, there is no result ... Trying to ping 8.8.8.8 doesn't works also. Does usb passthrough works for usb wireless nic adapters? Or only for storage devices? Many thanks for your help.

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Selinux Problem
by Günther J. Niederwimmer 02 Feb '17

02 Feb '17

Hello, CentOS 7.(3) Xen 4.4, Can I find any Doc for selinux with XEN, I found many Problems with selinux on Dom0 ? Or have I to disable selinux when I install XEN. Thank's for a answer. -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

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CentOS AMI's published to AWS
by Wesley Novack 02 Feb '17

02 Feb '17

Greetings! Can someone please explain the process for publishing CentOS 7 AMI's to AWS? I see the "official" CentOS marketplace page here: https://aws.amazon.com/marketplace/pp/B00O7WM7QW However, if I select us-west-2 and launch based on the current AMI that was released on 2/26/2016, I see that it is CentOS 7.2.1511 at boot up. Do new AMI's get published on a particular cadence? Eg; will there be an AMI for 7.3.1611, for example? I realize that we could do a yum update, but we'd prefer to start off new hosts on the latest version without needing to do a yum update and then save our own image. Any insight is appreciated and thank you! -- Thank you, Wes Novack

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qemu-kvm-ev-2.6.0-28.el7_3.3.1 tagged for testing
by Sandro Bonazzola 26 Jan '17

26 Jan '17

Hi, the latest qemu-kvm-ev has been tagged for testing. Please give it a run and provide feedback. If nothing against it shows up, we'll tag it for release on Friday. Thanks, -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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CentOS 7.(3) XEN 4.4 install
by Günther J. Niederwimmer 24 Jan '17

24 Jan '17

Hello List, I have to Install on a older Server Xen but this is not working now ;-( I do all I found in the Internet, can you tell me the way to a working XEN ? My Problem I mean, is a not working / starting libvirt no socket created ? ERROR Socket-Erstellung zu '/var/run/libvirt/libvirt-sock' Thanks for a answer, -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

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Increase CPU usage on HV after upgrade (7.2 -> 7.3)
by Subscriber 23 Jan '17

23 Jan '17

Hello , After upgrading the system from CentOS 7.2.1511 to CenOS 7.3.1611 I see that the average processing time has increased from 5-7% to 12-15% (doubled). Not critical but it is not pleasant. Server as KVM with 5 virtual machines. Someone noticed something similar? If so, how to fix that? Thx.

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