Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-04 Thread Lamar Owen
On Thursday, March 03, 2011 06:55:56 pm Dr. Ed Morbius wrote: I thought a bit about that when posting earlier. I still disagree WRT dual-booting. And no, virtualization doesn't need twice the hardware by a long shot (aggregated load averaging, shared componentry, and a host of other

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-04 Thread David Sommerseth
On 03/03/11 00:41, Ross Walker wrote: [...snip...] This works with Xen or KVM, though the management and compartmentalization of Xen helps. Does CentOS support the shared memory pages, memory dedup, in Xen? That would allow for a lot more Linux VMs. I don't think the KSM support has been

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Adam Tauno Williams
On Wed, 2011-03-02 at 19:29 +0200, Rudi Ahlers wrote: I am busy setting up some XEN servers on a SAN for high availability and Cloud Computing, and thought it could be cool to setup virtualization on a CentOS 5.5 Desktop, running on a Core i3 + 4GB RAM, and use the SAN's storage to see if it

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Always Learning
On Wed, 2011-03-02 at 19:18 -0800, Dr. Ed Morbius wrote: It far and away already has. Dual-booting is a bastard compromise which forces you to select between altnernative OSs, doesn't allow for simultaneous access to features (and storage) of both, and generally necessitates use of some

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Kevin K
On Mar 3, 2011, at 6:38 AM, Always Learning wrote: On Wed, 2011-03-02 at 19:18 -0800, Dr. Ed Morbius wrote: It far and away already has. Dual-booting is a bastard compromise which forces you to select between altnernative OSs, doesn't allow for simultaneous access to features (and

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Always Learning
On Thu, 2011-03-03 at 06:43 -0500, Kevin K wrote: On Mar 3, 2011, at 6:38 AM, Always Learning wrote: My dual-booting, actually tri-booting, with Vista (ugh!), Centos (brilliant) and Fedora 14 (not keen and a bit seriously buggy) allows me in Linux to access and change the file space

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Nicolas Thierry-Mieg
Kevin K wrote: On Mar 3, 2011, at 6:38 AM, Always Learning wrote: On Wed, 2011-03-02 at 19:18 -0800, Dr. Ed Morbius wrote: It far and away already has. Dual-booting is a bastard compromise which forces you to select between altnernative OSs, doesn't allow for simultaneous access to

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Phil Savoie
On 03/03/2011 06:43 AM, Kevin K wrote: On Mar 3, 2011, at 6:38 AM, Always Learning wrote: On Wed, 2011-03-02 at 19:18 -0800, Dr. Ed Morbius wrote: My dual-booting, actually tri-booting, with Vista (ugh!), Centos (brilliant) and Fedora 14 (not keen and a bit seriously buggy) allows me

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Stephen Harris
On Thu, Mar 03, 2011 at 07:10:26AM -0500, Phil Savoie wrote: On 03/03/2011 06:43 AM, Kevin K wrote: On Mar 3, 2011, at 6:38 AM, Always Learning wrote: two operating systems. Surely that constitutes simultaneous access to storage? If you are tri-booting, how are you accessing the file

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread John R Pierce
On 03/03/11 4:10 AM, Phil Savoie wrote: When booting a system with multiple operating systems, it is true that only one operating system may be in use at one time, however, those other operating systems are installed on the disk in partitions. These partitions may be mounted like any other

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Dr. Ed Morbius
on 11:38 Thu 03 Mar, Always Learning (cen...@g7.u22.net) wrote: On Wed, 2011-03-02 at 19:18 -0800, Dr. Ed Morbius wrote: It far and away already has. Dual-booting is a bastard compromise which forces you to select between altnernative OSs, doesn't allow for simultaneous access to

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Lamar Owen
On Thursday, March 03, 2011 01:20:06 pm Dr. Ed Morbius wrote: Compare against CIFS/Samba shares or NFS exports bewteen booted host/guests. You get native filesystem support (under the host/guest as relevant), and mappings via CIFS/Samba and/or NFS/NIS+. The win is still virtualization.

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread aurfalien
On Mar 3, 2011, at 12:37 PM, Lamar Owen wrote: On Thursday, March 03, 2011 01:20:06 pm Dr. Ed Morbius wrote: Compare against CIFS/Samba shares or NFS exports bewteen booted host/guests. You get native filesystem support (under the host/ guest as relevant), and mappings via CIFS/Samba

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Les Mikesell
On 3/3/2011 2:37 PM, Lamar Owen wrote: Compare against CIFS/Samba shares or NFS exports bewteen booted host/guests. You get native filesystem support (under the host/guest as relevant), and mappings via CIFS/Samba and/or NFS/NIS+. The win is still virtualization. There are situations

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Rudi Ahlers
On Thu, Mar 3, 2011 at 10:45 PM, aurfal...@gmail.com wrote: On Mar 3, 2011, at 12:37 PM, Lamar Owen wrote: On Thursday, March 03, 2011 01:20:06 pm Dr. Ed Morbius wrote: Compare against CIFS/Samba shares or NFS exports bewteen booted host/guests.  You get native filesystem support (under the

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Lamar Owen
On Thursday, March 03, 2011 03:55:48 pm Les Mikesell wrote: But you can usually run the one that is picky as the host OS and the other(s) virtualized. You really don't know what you're talking about in this case, Les. The specific machine that I'm talking about needs access to Harrison

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Lamar Owen
On Thursday, March 03, 2011 04:04:42 pm Rudi Ahlers wrote: Although it's not there yet, I'm sure we'll get there sooner than expected To be fair to VMware Fusion on OS X, the graphics acceleration is fantastic, running Windows 7 in full Aero mode with no problems. But it still can't keep

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Dr. Ed Morbius
on 15:37 Thu 03 Mar, Lamar Owen (lo...@pari.edu) wrote: On Thursday, March 03, 2011 01:20:06 pm Dr. Ed Morbius wrote: Compare against CIFS/Samba shares or NFS exports bewteen booted host/guests. You get native filesystem support (under the host/guest as relevant), and mappings via

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread aurfalien
On Mar 3, 2011, at 1:18 PM, Lamar Owen wrote: On Thursday, March 03, 2011 04:04:42 pm Rudi Ahlers wrote: Although it's not there yet, I'm sure we'll get there sooner than expected To be fair to VMware Fusion on OS X, the graphics acceleration is fantastic, running Windows 7 in full Aero

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Les Mikesell
On 3/3/2011 3:17 PM, Lamar Owen wrote: On Thursday, March 03, 2011 03:55:48 pm Les Mikesell wrote: But you can usually run the one that is picky as the host OS and the other(s) virtualized. You really don't know what you're talking about in this case, Les. The specific machine that I'm

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Lamar Owen
On Thursday, March 03, 2011 04:44:58 pm Les Mikesell wrote: So there are actually apps that work in Linux that aren't available for OS X? Yep. For one example, there are the LinuxDSP plugins. There are others. I'm kind of surprised that a local disk controller would be better in that

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-03 Thread Dr. Ed Morbius
on 16:44 Thu 03 Mar, Lamar Owen (lo...@pari.edu) wrote: On Thursday, March 03, 2011 04:24:14 pm Dr. Ed Morbius wrote: I think I addressed that reality. Part of it, yes. For some needs, you need to be on bare metal, though whether this is accomplished via multi-booting or multiple

[CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Rudi Ahlers
I am busy setting up some XEN servers on a SAN for high availability and Cloud Computing, and thought it could be cool to setup virtualization on a CentOS 5.5 Desktop, running on a Core i3 + 4GB RAM, and use the SAN's storage to see if it could actually be worth my while to replicate a Cloud

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread compdoc
Yes, I know that I could have used KVM, VMWare or VirtualBox, but I wanted to use what's included already. KVM is included, you just have to select it. There is a loyal following of Xen in the community, but I use KVM for my servers. I'm often called 'dumb' for even talking about KVM, but I like

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Les Mikesell
On 3/2/2011 11:29 AM, Rudi Ahlers wrote: So, I installed CentOS + KDE, chose the Virtualization package and used Virtual Machine Manager to setup another CentOS VM inside CentOS (I only have a CentOS ISO on this SAN, since we don't use Debian / Slackware / FC / Ubuntu / etc). The installation

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Paul Heinlein
On Wed, 2 Mar 2011, Rudi Ahlers wrote: I am busy setting up some XEN servers on a SAN for high availability and Cloud Computing, and thought it could be cool to setup virtualization on a CentOS 5.5 Desktop, running on a Core i3 + 4GB RAM [...] So, I installed CentOS + KDE, chose the

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Rudi Ahlers
On Wed, Mar 2, 2011 at 7:56 PM, compdoc comp...@hotrodpc.com wrote: Yes, I know that I could have used KVM, VMWare or VirtualBox, but I wanted to use what's included already. KVM is included, you just have to select it. There is a loyal following of Xen in the community, but I use KVM for my

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread David Sommerseth
On 02/03/11 19:07, Les Mikesell wrote: On 3/2/2011 11:29 AM, Rudi Ahlers wrote: So, I installed CentOS + KDE, chose the Virtualization package and used Virtual Machine Manager to setup another CentOS VM inside CentOS (I only have a CentOS ISO on this SAN, since we don't use Debian /

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread aurfalien
On Mar 2, 2011, at 11:35 AM, Rudi Ahlers wrote: I thought, just for the fun of it, let's install Windows 2008 Small Business Server. Interestingly, using the same Virtual Machine Manager, the installation wasn't as slow as with CentOS. It's almost asif it's more optimized for Windows? I used

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Les Mikesell
On 3/2/2011 1:35 PM, Rudi Ahlers wrote: Differently put, we already do this with servers. One big fast Quad XEON can run many client's Virtual Machines, very easily. And many of those Virtual Machines host a few hundred websites, thus saving a lot on rack space, electricity, etc, etc.

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Rudi Ahlers
On Wed, Mar 2, 2011 at 9:54 PM, Les Mikesell lesmikes...@gmail.com wrote: On 3/2/2011 1:35 PM, Rudi Ahlers wrote: Differently put, we already do this with servers. One big  fast Quad XEON can run many client's Virtual Machines, very easily. And many of those Virtual Machines host a few

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Dag Wieers
On Wed, 2 Mar 2011, David Sommerseth wrote: Other than that, SPICE is probably the future [1] on Linux. That should slowly begin to be useful in RHEL5, RHEL6 and Fedora 14, if I'm not much mistaken. Not sure how much is implemented in RHEL5/CentOS5 though. However, for SPICE to work, you

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Les Mikesell
On 3/2/2011 2:06 PM, Rudi Ahlers wrote: Differently put, we already do this with servers. One bigfast Quad XEON can run many client's Virtual Machines, very easily. And many of those Virtual Machines host a few hundred websites, thus saving a lot on rack space, electricity, etc, etc.

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread compdoc
You need qemu-spice for using SPICE, which does not ship with RHEL5 or RHEL6. On top of that, SPICE is only supported by Red Hat for RHEV, not libvirt. That may change in the future, ... but when, nobody knows ;-) Well that's certainly disappointing. Any alternatives to spice for centos? I know

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread compdoc
Yes, I know KVM is included, but at this stage XEN is the default and when you use the Virtual Machine Manager, it uses XEN. Select Server Gui only, when it's up, use yum to install everything else. I think yum is a better way to install than the OS installer. No, I'm not using VNC. My

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread James Hogarth
You need qemu-spice for using SPICE, which does not ship with RHEL5 or RHEL6. On top of that, SPICE is only supported by Red Hat for RHEV, not libvirt. That may change in the future, ... but when, nobody knows ;-) -- No you don't Dag. qemu-kvm and libvirt in RHEL6 already supports SPICE...

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread David Sommerseth
On 02/03/11 21:12, Dag Wieers wrote: On Wed, 2 Mar 2011, David Sommerseth wrote: Other than that, SPICE is probably the future [1] on Linux. That should slowly begin to be useful in RHEL5, RHEL6 and Fedora 14, if I'm not much mistaken. Not sure how much is implemented in RHEL5/CentOS5

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread James Hogarth
KVM is included, you just have to select it. There is a loyal following of Xen in the community, but I use KVM for my servers. I'm often called 'dumb' for even talking about KVM, but I like it. (and I'm not saying, nor have I ever said, that KVM is better than Xen) Yes, I know KVM is

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Dag Wieers
On Wed, 2 Mar 2011, James Hogarth wrote: You need qemu-spice for using SPICE, which does not ship with RHEL5 or RHEL6. On top of that, SPICE is only supported by Red Hat for RHEV, not libvirt. That may change in the future, ... but when, nobody knows ;-) qemu-kvm and libvirt in RHEL6 already

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread James Hogarth
Interesting, could you shed a light on what exact XML is needed ? http://libvirt.org/formatdomain.html#elementsGraphics http://libvirt.org/formatdomain.html#elementsVideo You need to set the video type to qxl and the graphical type to spice ... then set the appropriate attributes on the

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Ross Walker
On Mar 2, 2011, at 12:29 PM, Rudi Ahlers r...@softdux.com wrote: I am busy setting up some XEN servers on a SAN for high availability and Cloud Computing, and thought it could be cool to setup virtualization on a CentOS 5.5 Desktop, running on a Core i3 + 4GB RAM, and use the SAN's storage to

Re: [CentOS] virtualization on the desktop a myth, or a reality?

2011-03-02 Thread Dr. Ed Morbius
on 21:35 Wed 02 Mar, Rudi Ahlers (r...@softdux.com) wrote: On Wed, Mar 2, 2011 at 7:56 PM, compdoc comp...@hotrodpc.com wrote: Yes, I know that I could have used KVM, VMWare or VirtualBox, but I wanted to use what's included already. ... What I'm getting at: Can, or will virtualization