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2015-01-13 21:05:02 -0600 answered a question Unable to complete install: 'unsupported flags (0x1) in function virNetDevMacVLanCreateWithVPortProfile

I hava to answser myself.... but still want to know more about it.

Why repository has version 1.2.9 with bug and nobody cares to fix it in a two weeks?

Follow article https://www.redhat.com/archives/libvi...

I replaced VIR_CONNECT_RO flag with 0, and after I recompiled and rebuilt libvirtd 1.2.9 bug disappered.

However in source code for 1.2.10 this is not fixed, so likely they fixed it different.

Rebuilding libvirtd takes some time. http://libvirt.org/sources/ tar xvzf libvirt-1.2.9 cd libvir*

apt-get install libyajl-dev

apt-get install libxml2-dev

apt-get install libdevmapper-dev

apt-get install libnl-dev

apt-get install libgnutls-dev

vim /opt/libvirtlibvirt-1.2.9/src/phyp/phyp_driver.c

./configure --prefix=/usr

make;make install

service libvirtd restart

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2014-12-23 05:10:14 -0600 commented answer How to connect plain Hard drive to compute node?

Thanks.

Yes I think lvextend is what I am looking for. I will make and test it.

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2014-12-22 06:33:31 -0600 asked a question How to connect plain Hard drive to compute node?

I add 4TB hard drive on pci-e raid controller to my compute node (juno, debian) but system cannot see it or allocate instances.

If I am not supposed to install root fs on this hdd or to create cinder volume on this hdd can anybody recommend method to add this disk space to openstack ?

Just to explain to system to allocate space on additional disks for virtual machines.

2014-12-22 06:21:37 -0600 answered a question VM sends DHCPREQUEST through bridge that has no correct member interface

Fast solution was extremely simple just re-plug cable for flat interface to correct vlan on switch (subnet).

However older compute admin guide of 2013 teaches that br100 bridge can be defined in interfaces and empty string flat_dhcp _interface="" means that it is static. Another need to understand why to kill dnsmasq manually sometimes.

Thanks to technical writers compute admin manual has really good network diagrams for FlatDHCP manager and more.

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2014-12-16 09:11:55 -0600 asked a question Unable to complete install: 'unsupported flags (0x1) in function virNetDevMacVLanCreateWithVPortProfile

I receive error

Unable to complete install: 'unsupported flags (0x1) in function virNetDevMacVLanCreateWithVPortProfile'

that likely related to bug version 1.2.9

root@compute11:~# libvirtd --version
libvirtd (libvirt) 1.2.9

if I install 1.2.10 version from tarball macvtap devices disappeared in virt-manager

Please help.

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2014-12-15 07:43:08 -0600 asked a question Using macvtap eth0 or bridge eth0 with libvirtd ?

Eventually I faced problem with macvtap device that was disappered from virt-manager. It happened after I installed openstack-compute-node by tasksel from debian mirror and version of libvirtd becomes 2.6.9 but it was 2.6.8 in Juno. I cannot downgrade because of dependencies. I upgrade libvirtd to next 2.6.10 manually from tarball to try struggling with some known bug (undefined tag while creating domain) for 2.6.9.

But for libvirtd 2.6.10 build --with-macvtap=true macvtap device is disappeared in virt-manager. Macvtap kernel module is loaded.

I wonder if I can work without macvtap devices but using shared device with bridge only? By the way instances work like this if I check dumpxml or details of vm in virt-manager.

Again my question is: using macvtap driver is mandatory (or recommended) or shared device with bridge is enough?

Some macvtap blog is appreciated.

2014-12-15 07:14:48 -0600 commented answer How can I make custom cloud-init script?

Thanks. I have read part regarding ubuntu image but missed cloud-config docs. And I think I can use configuration disk somehow.

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2014-12-14 04:37:44 -0600 asked a question How can I make custom cloud-init script?

I followed Juno manual to create custom virtual machines that declared cloud-init script as mandatory part before I use image inside cloud, create glance image.

They mentioned requirements to virtual machines of different types that include procedure to resize original partition table to fit target vda disk and so on.

I wonder if I can use custom cloud-init script and where is good documentation how to write it?

Can I develop minimal cloud-init procedures that assign ip address only from specific dhcp server and do nothing more?

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2014-12-13 06:19:45 -0600 asked a question How much memory on block storage is required?

I want to setup block storage, cinder volume, on Juno compute node with 4TB disk space and 4 GB only RAM.

Is it possible?

I mean having small 4 GB memory is a limit to launch virtual machine instances. But storage size is huge. It may work or not. I am trying to ask if VM can utilize disk in my block storage and use 64 Gb memory on different compute nodes?

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2014-12-13 04:01:52 -0600 marked best answer Using older Debian kernels to install Juno release

I would try to follow latest manual to install Juno openstack release but with older debian distribution.

Let say latest Debian 6 but not Debian 7 wheezy.

( Reason I want this - I believe Red Hat Virtio Drivers for Windows and FreeBSD virtual images have some bugs with kvm and libvirtd versions included and no info how to fix this. )

Anybody can confirm that using Debian 6 not Debian 7 for installation with Juno normal repository will work fine?

I strongly want to stay on Debian/KVM platform and do not change it for Ubuntu, Fedora, Centos 6 , Centos 7 or something.

2014-12-12 06:45:41 -0600 edited answer Why Red Hat Virtio Driver/Windows is slow in Debian and fast in CentOS?

I replaced 3.2 kernel for latest kernel 3.10 and it was helpful. Inside 3.2 kernel that comes from mirrors virtio features are tagged as "experimental" but in 3.10 no tags like this so I believe they are fixing something.

I mean after installing new 3.10 kernel I have maximum of download and upload bandwidth for Windows 7 same I have on host interface

So I recommend THIS solution for Debian users.


I appreciate.

In fact I disabled already both tso and gro. It becomes bit faster from 1 to 10 but I expect 150. I heard about MTU. But I will try tomorrow to disable overload on all nova interfaces. And I did not start neutron.

If this is kernel issue so is anybody capable to come through menuconfig and disable something there? Any forum with kernel gurus?

Is it any clue that windows and freebsd instances are affected not linux...

Or if I install older kernel or start over with debian squeze - how that python juno repository works - can I use all services as expected?

2014-12-12 06:39:28 -0600 commented answer Using older Debian kernels to install Juno release

Thank you for comment. I replaced 3.2 kernel for latest kernel 3.10 and it was helpful. Inside 3.2 kernel that comes from mirrors virtio features are tagged as "experimental" but in 3.10 no tags like this so I believe they are fixing something.

2014-12-12 06:32:10 -0600 commented answer can't open console to a new instance (juno)

I am trying be helpful and say:

1) you can get some text log with

nova console-log "instance"

2)

Grey screen with VNC often means

~/.vnc/xstartup

is invalid.

If only you get any screen at all.

2014-12-11 10:07:49 -0600 marked best answer Static IP for cloud instances

Can I make bit change to cloud-init if I want to force usage of static IP inside VM?

Is it bad practice to put static IP in virtual images and what are considerations?

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