I have used both VMM and VirtualBox. Yes, you are correct both KVM/QEMU (VMM is the GUI) and Virtual Box run on a true host OS and both boot other guest OSs. For example, the host OS could be SL7 running a SL6 guest and some other guest such as Windows. I have run as many as seven guests concurrently on my laptop; performance was marginal. The more RAM the better.
Good Luck, -- Michael Duvall Systems Analyst, Real-Time michael.duv...@ccur.com (954) 973-5395 Office (954) 531-4538 Mobile 2881 Gateway Drive | Pompano Beach, FL 33069 | www.ccur.com -----Original Message----- From: Yasha Karant <ykar...@csusb.edu> To: scientific-linux-us...@fnal.gov <scientific-linux-us...@fnal.gov> Subject: Re: two mysteries Date: Mon, 25 Jan 2016 13:32:30 -0500 On 01/24/2016 06:06 PM, Lamar Owen wrote: > On 01/23/2016 01:30 PM, Yasha Karant wrote: >> Perhaps someone else has experienced what I related below and can >> comment -- SL 7x. >> >> 1. ... For 802.3, I prefer to use a manual configuration, not >> NetworkManager. > > For a dynamic connection even with a wired Ethernet you should use the > supported NetworkManager stack, your personal preferences aside. NM > works and doesn't require munging for a simple DHCP wired connection. > >> >> 2. ...Note that I must use MS Win to work with these devices as the >> application software for the device in question is *NOT* available >> for linux, the device is proprietary (no source code available), and >> CrossOver/Wine does not support USB -- forcing the use of a VM >> running a MS Win gues > > Neither VMware nor VirtualBox ship as part of SL. KVM does, and USB > passthrough works very well with Windows 7 running in a KVM virtual > machine on my laptop. It just works, and it's already part of SL; why > not use it? Performance is very good in my experience, and I'm > running a few pieces of software in Win 7 for the same reasons as > you. You're also far more likely to get useful help using KVM, either > from the list or from other sources, such as the Red Hat or Fedora > documentation. From the KVM site (http://www.linux-kvm.org/page/Management_Tools) that has a RedHat logo, there is a list of management interfaces, including VMM (Virtual Machine Manager -- https://virt-manager.org/screenshots/ ) that also appears to be a Red Hat entity. Anyone using VMM? VMM appears to allow a true host OS (supervisor, not hypervisor) with the VM ("hypervisor") running under the OS (as with VMWare workstation/player or VirtualBox), thus booting an OS, not a hypervisor that actually provisions for guest supervisors. Is this correct? Yasha Karant
