On Sat, 2016-01-23 at 09:27 -0600, Robert Nichols wrote:
> On 01/22/2016 11:02 AM, Ed Heron wrote:
> >I'm still running CentOS 5 with Xen.
> >
> >We recently replaced a virtual host system board with an Intel
> > S1400FP4, so the host went from a 4 co
On Fri, 2016-01-22 at 17:39 -0600, NightLightHosts Admin wrote:
> Ed Heron wrote:
> > Absolutely, I'll share my real world results. I'm happy that I'm not
> > the only person interested in the technique. I'm a little disappointed
> > somebody isn&#x
On Fri, 2016-01-22 at 16:59 -0600, NightLightHosts Admin wrote:
> On Fri, Jan 22, 2016 at 4:54 PM, Ed Heron wrote:
> > Yes, but it isn't that simple. One copy of the mirror would be on a
> > physical disk. The other copy of the mirror would be on RAM disk.
> >
On Fri, 2016-01-22 at 16:17 -0600, NightLightHosts Admin wrote:
> > Ed Heron wrote:
> > Yes, in a test environment, I am mirroring a Logical Volume with a RAM
> > disk to increase the perceived speed of the disk. I'm expecting to
> > convert a live guest to thi
On Fri, 2016-01-22 at 14:56 -0600, NightLightHosts Admin wrote:
> On Fri, Jan 22, 2016 at 11:02 AM, Ed Heron wrote:
> > I'm still running CentOS 5 with Xen.
> >
> > We recently replaced a virtual host system board with an Intel
> > S1400FP4, so the host went
I'm still running CentOS 5 with Xen.
We recently replaced a virtual host system board with an Intel
S1400FP4, so the host went from a 4 core Xeon with 32G RAM to a 6 core
Xeon with 48G RAM, max 96G. The drives are SSD.
I was recently asked to move an InterBase server from Windows 7 to
Wind
If networking is already configured when a VM boots, how about a
kernel parameter for a configuration server? If it is configured to
grab an executable file, it would be very flexible.
We use kickstart files to build our CentOS VM's and physical boxes and
then pull configuration changes from
On Tue, 2014-06-10 at 17:21 +0100, Lars Kurth wrote:
> Hi all,
>
> following the discussion on about documentation, I was wondering whether
> we need to look at a standard way in which we recommend how to provision
> images for VMs. Am starting this with a Xen hat, but the discussion
> should n
On Wed, 2012-10-03 at 17:29 +0100, Karanbir Singh wrote:
> hi Guys,
>
> As we get ready to start publishing Cloud Images ( or rather images
> consumable in various virt platforms, including public and private
> clouds ) - it would be great to have a baseline package manifest worked
> out.
>
> Wha
On Fri, 2012-09-21 at 12:05 -0400, m...@tdiehl.org wrote:
> ...
> If I use virt-manager to make changes to the configuration, I see the
> changes in /etc/xen/vm_name
>
> I am now wondering if there is another config file some where that
> virt-manager
> is writing to.
> ...
You could also run
On Thu, 2012-09-20 at 12:03 -0400, m...@tdiehl.org wrote:
> On Thu, 20 Sep 2012, Ed Heron wrote:
>
> > You could loop mount the messed up disk on the host or you could mount
> > the messed up disk on another DomU and change it.
>
> Yes, I thought about mounting it on an
You could loop mount the messed up disk on the host or you could mount
the messed up disk on another DomU and change it.
On Thu, 2012-09-20 at 08:58 -0400, m...@tdiehl.org wrote:
> Hi,
>
> I have a C5.8 machine with several DomU's. I fubared the fstab on one of them
> and I need to get it into
On Tue, 2012-06-19 at 18:21 +0200, Andrea Chierici wrote:
> Hi,
> I am trying to set up a shared iscsi storage to serve 6 kvm hypervisors
> running centos 6.2.
> I export an LVM from iscsi and configured virt-manager to see the iscsi
> space as LVM storage (a single storage pool).
> I can create
On Wed, 2012-03-07 at 13:13 -0700, Ed Heron wrote:
> On Wed, 2012-03-07 at 20:41 +0200, Peter Peltonen wrote:
> > As I received no response on the general CentOS list, I'll repost it
> > here as the question is about Xen virtual machine routing.
> >
> >
> &
On Wed, 2012-03-07 at 20:41 +0200, Peter Peltonen wrote:
> As I received no response on the general CentOS list, I'll repost it
> here as the question is about Xen virtual machine routing.
>
>
> This is my network setup:
> http://pastebin.com/kyWpTQYU
>
>
> Lets assume my dom0's eth2 public ip
On Fri, 2012-02-24 at 12:05 -0800, Jeff Boyce wrote:
> Greetings -
>
> I am going through some testing steps to expand a logical volume and the
> corresponding filesystem on a KVM guest and have run across a deficiency in
> my knowledge. I spent the afternoon yesterday googling for answers, but
On Wed, 2012-02-08 at 13:29 -0500, James B. Byrne wrote:
> On Wed, February 8, 2012 11:06, Ed Heron wrote:
> > On Tue, 2012-01-31 at 14:01 -0500, James B. Byrne wrote:
> >> CentOS-6.2
> >>
> >> We have a dedicated CentOS-5.7 host used for fax
> >> re
On Tue, 2012-01-31 at 14:01 -0500, James B. Byrne wrote:
> CentOS-6.2
>
> We have a dedicated CentOS-5.7 host used for fax reception
> and transmission that we wish to move to a CentOS-6.2
> virtual guest instance. The CentOS-6.2 virtual host has a
> 4-port serial card installed.
Consider repla
On Thu, 2012-01-05 at 21:02 +0200, Manuel Wolfshant wrote:
> ... My colleagues from the engineering dept ( I am IT... ) have to use a
> commercial application which comes as 2 CD images plus 3 sets of 2 isos
> with updates. All of which have to be installed (at last theoretically )
> one after
On Thu, 2012-01-05 at 18:15 +0200, Manuel Wolfshant wrote:
> ... It depends heavily on the ending result . If you just need a fresh
> machine, installing from fresh is ( was for me at least ) the fastest
> way. OTOH when you also have a ton of additional applications (maybe not
> all of them ava
On Thu, 2012-01-05 at 15:09 +, Karanbir Singh wrote:
> ... Keep in mind that you need to have your provisioning happen in a
> fairly secure environment itself, if you are going to add trust points
> on signatures like this - specially if they are 'generated' on demand.
>
Other than installi
On Thu, 2012-01-05 at 15:05 +, Karanbir Singh wrote:
> ...
> Personally, I hate images. Provisioning from fresh is easy enough, fast
> enough and manageable enough that images are almost always either the
> wrong solution or a by-product requirement from a third party tool that
> does not under
On Wed, 2012-01-04 at 20:31 +0100, Thomas Göttgens wrote:
> Hi James,
>
> depending on your use case:
>
> if you source is a template VM: just delete the keys prior to cloning
> in the source VM
>
> if you source is a production VM: just delete the keys after cloning
> on the newly cloned VM
>
On Tue, 2011-11-29 at 15:51 -0500, James B. Byrne wrote:
> I am investigating the procedure to follow when moving a
> KVM guest instance from one host to another where the
> guest uses LVM as its storage. As a preliminary cut I
> have cobbled the following together from various sources
> located t
On Thu, 2011-10-06 at 01:46 +0200, Dennis Jacobfeuerborn wrote:
> ...
> The question is what does Xen offer that KVM cannot provide? Looking at the
> slides of the KVM Forum 2011 (http://www.linux-kvm.org/page/KVM_Forum_2011)
> there seem to be many interesting improvements in the pipeline so at
On Wed, 2011-10-05 at 10:55 -0400, Rich wrote:
> Since the Xen and Linux kernel people have finally made peace and Xen
> is going to be included with the kernel, should I keep using the Xen
> virtual server with Centos or should I switch to KVM? I am running
> Centos 5.7 now.
> I guess the real q
I've been considering this type of setup for a distributed
virtualization setup. I have several small locations and we would be
more comfortable having a host in each.
I was nervous about running the firewall as a virtual machine, though
if nobody screams bloody murder, I'll start exploring i
On Fri, 2011-09-16 at 10:46 -0700, Eric Shubert wrote:
> ...
> Now, take all of your ideal logical servers (and the networking which
> ties them all together), and make them VMs on your host. I've done this,
> and these are the VMs I presently have (the list is still evolving):
> .) net (IPCop d
On Thu, 2011-09-08 at 02:35 +0530, Rajagopal Swaminathan wrote:
> > I would suggest setting up a CentOS server with Samba and convert the
> > DOS network stack, if you can. Samba appears to be much more
> > supportable, currently. Take a look at the FreeDOS project, too, as an
> > example of ge
On Wed, 2011-09-07 at 19:54 +0530, Rajagopal Swaminathan wrote:
> Greetings,
>
> On Wed, Sep 7, 2011 at 12:34 AM, Ed Heron wrote:
> >
> > On Tue, 2011-09-06 at 23:20 +0530, Rajagopal Swaminathan wrote:
> >
> > There are so many variables that aren't menti
On Tue, 2011-09-06 at 23:20 +0530, Rajagopal Swaminathan wrote:
> Greetings,
>
> I would be grateful if anybody can kindly give a pointer to port a
> Working netware 3.12 server using Centos >=5.x KVM howto?
>
There are so many variables that aren't mentioned...
Do you currently have a Cen
On Mon, 2011-08-15 at 15:54 -0400, James B. Byrne wrote:
> I am performing some configuration testing on a kvm host. When
> installing a guest operating system is it advisable to place each
> instance in a separate lv or better to accept the default and store
> them on the root file system?
I t
On Thu, 2011-08-04 at 16:35 +0200, Rainer Traut wrote:
> Hi,
>
> I need to transfer a local raw image to another datacenter.
> Is there a way to achieve good compression of this image, I heard of
> tools overwriting unused space with zeros. Is this a good idea?
>
> It's an W2k8 image/NTFS.
>
>
On Tue, 2011-07-19 at 12:36 -0400, Kartik Subbarao wrote:
> I've come up with the following kickstart config (see below) for
> deploying a minimal CentOS 6 VM. It takes about 460MB. I'm assuming that
> all of the -firmware RPMs aren't needed for a VM installation, so I
> removed them. Also remov
On Tue, 2011-06-28 at 13:35 -0400, Steve Campbell wrote:
> Ed,
>
> What do you mean by "ripping"? As far as the dd command you mentioned,
> it appears that the ISO file itself is copied to the folder, not the
> expanded iso-into-files themselves. Is this correct? If so, that's just
> too easy.
On Tue, 2011-06-28 at 09:30 -0400, Steve Campbell wrote:
> Mr. Heron was so kind to make a suggestion that I should use disk images
> to install VMs. Upon further thought, I kinda like the idea. So I
> re-read the manual and google a little, and discover I still don't know
> what should be in t
On Mon, 2011-06-27 at 15:37 -0600, Ed Heron wrote:
> On Mon, 2011-06-27 at 16:02 -0400, Steve Campbell wrote:
> > ...
> > I'm trying to install my first VM using Centos 5.5 as the host as well
> > as the VM OS. It starts fine using VMM, but when it asks for the seco
On Mon, 2011-06-27 at 16:02 -0400, Steve Campbell wrote:
> ...
> I'm trying to install my first VM using Centos 5.5 as the host as well
> as the VM OS. It starts fine using VMM, but when it asks for the second
> disk of 8 CDs, the first one isn't ejected, although unmounted because I
> can open
On Sun, 2010-10-24 at 16:03 -0500, Drew Kollasch wrote:
> Is there any known issues when trying to run CentOS (x86 or x64) on a
> fresh install of vmware 4.1?
>
> Details as to why I am asking are here in the CentOS
> forums:
> https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&ord
On Wed, 2010-06-16 at 12:40 -0700, Drew wrote:
> The free ESXi can virtualize more then three guests. The limitations
> imposed on the free license revolve more around advanced capabilities
> within the suite. Things like vMotion (automatic guest migration
> between hosts), High Availability, etc a
On Wed, 2010-06-16 at 12:11 -0400, Steve Campbell wrote:
> I just installed Centos 5.5 with the xen kernel on an older machine. It
> has Xeon processors and a 700 Mhz processor speed, so I realize I must
> use para-virtualized guests. Reading the Centos/RH Virtualization Guide
> gives examples o
On Tue, 2010-06-15 at 00:17 +0800, Wendy William wrote:
> after RESTART server then I can not ping to Dom-U.
Remember that if you want the domain to start at boot, you must link the
cfg file in /etc/xen/auto/
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hints as to where to go next in trouble shooting
virt-manager connecting to a non-local xen server.
Is there a debug mode that I'm missing?
Ed Heron
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From: "Ed Heron", Wednesday, April 07, 2010 9:11 AM
> ... and also set the IP address in the kickstart file (if it
> is a server). ...
I should add that I set the static IP address from %post using:
# Configure eth0
file="/etc/sysconfig/network-scripts/ifcfg-et
From: "john maclean", Tuesday, April 06, 2010 4:11 AM
> I've set up a local webserver to store kickstart files for domUs. All
> parameters are respected apart from the network settings. DomU always
> gets DHCP. Can any one help to unwrap this one? Does one add hostname,
> ip, netmask and gateway v
From: "Torkil Zachariassen", Monday, November 23, 2009 5:35 AM
> On Fri, 2009-11-13 at 10:47 -0700, Ed Heron wrote:
>> From: "Neil Aggarwal", Thursday, November 12, 2009 5:34 PM
>>
>> > Is there a command in virsh to shutdown all domains?
>
>
I was slightly confused about this thread until I realized you were using
static IP config on your VM's...
Why do people do that? I have an extra step of picking up the HW address
(or setting the HW address when creating the VM) and putting it into my dhcp
configuration, but then I have al
From: "Neil Aggarwal", Thursday, November 12, 2009 5:34 PM
> Is there a command in virsh to shutdown all domains?
> I can do one at a time, but that is untenable for a large
> number of domains.
I use a script to shutdown my domains. I am not always happy with
stopping the service, which is s
From: "Neil Aggarwal", Tuesday, October 20, 2009 12:35 PM
> ...
> When I do that, I get this error:
>
> (virt-viewer:3083): Gtk-WARNING **: cannot open display:
> Domain installation still in progress. You can reconnect to
> the console to complete the installation process.
> ...
include the -
From: David Knierim, Wednesday, July 22, 2009 3:18 PM
>I apologize if this is a newbie question, but I have been unable to work
>out how to do this.
>I am adding code to my installation on dom0 (running CentOS 5.3) to monitor
>for hardware faults. If there is an issue, I want to propagate the
From: "Christopher G. Stach II", Wednesday, April 22, 2009 5:39 PM
> You can handle this with Thinstation and many other thin clients.
Thinstation is exactly what I'm currently using.
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From: "Christopher G. Stach II", Wednesday, April 22, 2009 5:31 PM
> It's a really bad idea to allow connections into dom0 from anything other
> than an administrative network and for administrative purposes. RDP is
> generally a better solution than anything else, anyway.
I don't think anyb
From: "Joseph L. Casale", Wednesday, April 22, 2009 7:28 PM
>> I am interested in the multiple connections allowed with VNC for support
>>type console sharing. When connected with RDP, the console of the VM has
>>a
>>login screen, so you can't use VNC to the console at the same time as a
>>RDP
From: "Manuel Wolfshant", Wednesday, April 22, 2009 5:42 PM
> Well, if you can implement a LTSP-like solution, good for you. In my
> case all users already had local linux workstations running C5, the XP
> was needed only for a couple of proprietary applications and for a
> limited period of ti
From: "Manuel Wolfshant", Wednesday, April 22, 2009 4:58 PM
> ...
> - XP was MUCH faster in Xen, compared to real hardware (!)
I've been pretty happy with the performance, as well.
> - RDP beats VNC in terms of speed any time, any place. I cannot evaluate
> precisely the factor, but empiricall
From: "Julian Price", Wednesday, April 22, 2009 3:46 PM
> I use RDP because it allows copy & paste of text between the local and
> remote machines. VNC does not, unless I've just not got it set up right.
>
> - Julian
Most of my users are not sophisticated enough to handle mixing remote and
lo
From: "Joseph L. Casale", Wednesday, April 22, 2009 4:23 PM
>> I'm experimenting with using WinXP Xen guests as an alternative to
>>upgrading workstations. The administrative advantages seem overwhelming.
>
> Using the beta opensource parvirt drivers? Performance would be
> unacceptable
> otherw
I'm experimenting with using WinXP Xen guests as an alternative to
upgrading workstations. The administrative advantages seem overwhelming.
Please share thoughts about using VNC vs RDP for remote desktop
connections.
Please share any anecdotal information regarding user reactions and/or
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