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FAQ Updates – July/16/2010

I'm still working on getting my rss feed mess which bombarded your feed reader and inbox two days ago. Meanwhile, our FAQ section is updated in last few days with new howtos (if you want FAQ updates just follow us on twitter or identi.ca):
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I'm having some weird problem with Firefox 3.0.4 under Ubuntu Linux. My test server runs inside VMWare server version 2.0. It was working fine with my Laptop. But with my desktop it started to dump errors for me. when I try to open the console of a virtual machine I have following error:
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Top 10 Linux Virtualization Software

Virtualization is the latest buzz word. You may wonder computers are getting cheaper every day, why should I care and why should I use virtualization? Virtualization is a broad term that refers to the abstraction of computer resources such as:

  1. Platform Virtualization
  2. Resource Virtualization
  3. Storage Virtualization
  4. Network Virtualization
  5. Desktop Virtualization

This article describes why you need virtualization and list commonly used FOSS and proprietary Linux virtualization software.
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VirtualBox is a virtual emulator like VMWare workstation. It has many of the features VMWare has, as well as some of its own.

I really like new Opensource VirtualBox from Sun. It is light on resources. Here is a quick tip - you can convert a VMware virtual machine to a VirtualBox machine using qemu-img utility.
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You can easily start / stop / pause or take a snapshot from a shell prompt under a Linux / Windows host using vmrun command. This is useful if you do not want to run web interface for starting and/or stopping VMs.

vmrun commands

vmrun -u USER -h 'https://vmware.server.com:8333/sdk' -p PASSWORD COMMAND [PARAMETERS]
OR
vmrun -u USER -h 'https://vmware.server.com:8333/sdk' -p PASSWORD start "[storage] Path/to/.vmx"

Where,
=> -u USER : VMWare server username

=> -h 'https://vmware.server.com:8333/sdk' : Local or remote server FQDN / IP address

=> -p PASSWORD : VMWare server password

=> COMMAND [PARAMETERS] : Command can be any one of the following:

POWER COMMANDS           PARAMETERS           DESCRIPTION
--------------           ----------           -----------
start                    Path to vmx file     Start a VM
                         [gui|nogui]
stop                     Path to vmx file     Stop a VM
                         [hard|soft]
reset                    Path to vmx file     Reset a VM
                         [hard|soft]
suspend                  Path to vmx file     Suspend a VM
                         [hard|soft]
pause                    Path to vmx file     Pause a VM
unpause                  Path to vmx file     Unpause a VM

Start a VM called CentOS

To start a virtual machine with Vmware server 2.0 on a Linux host, stored on storage called iscsi:
vmrun -T server -h 'https://vms.nixcraft.in:8333/sdk' -u root -p 'secrete' start "[iSCSI] CentOS52_64/CentOS52_64.vmx"
To start a virtual machine with Workstation on a Windows host (open command prompt by visiting Start > Run > cmd > [enter] key):
vmrun -T ws start "c:\My VMs\centos\centos.vmx"

Stop a VM called CentOS

To stop a virtual machine with Vmware server 2.0 on a Linux host, stored on storage called iscsi:
vmrun -T server -h 'https://vms.nixcraft.in:8333/sdk' -u root -p 'secrete' stop "[iSCSI] CentOS52_64/CentOS52_64.vmx"

Reset a VM called Debian

To reset a virtual machine with Vmware server 2.0 on a Linux host, stored on storage called DISK3:
vmrun -T server -h 'https://sun4k.nixcraft.co.in:8333/sdk' -u root -p 'secrete' reset "[DISK3] Debian5/Debian5.vmx"

Red Hat paid approximately $107 million in cash for Qumranet, a privately held company. Now, Red Hat positioned to deliver comprehensive, reliable and open virtualization to Linux and Windows servers and desktops.

Red Hat today announced the acquisition of Qumranet, Inc. The acquisition includes Qumranet's virtualization solutions, including its KVM (Kernel Virtual Machine) platform and SolidICE offering, a virtual desktop infrastructure (VDI), which together present a comprehensive virtualization platform for enterprise customers. In addition, in connection with the deal, Qumranet's talented team of professionals that develop, test and support Qumranet solutions, and its leaders of the open source community KVM project, will join Red Hat.

According wikipedia:

Kernel-based Virtual Machine (KVM) is a Linux kernel virtualization infrastructure. KVM currently supports native virtualization using Intel VT or AMD-V. A wide variety of guest operating systems work with KVM, including many flavours of Linux, BSD, Solaris, Windows, Haiku, ReactOS and AROS Research Operating System.

Red Hat Advances Virtualization Leadership with Qumranet, Inc. Acquisition

Download of the day: Oracle VM

Virtualization is the process of abstracting computing resources such that multiple operating system and application images can share a single physical server, bringing significant cost-of-ownership and manageability benefits. Through its Oracle VM product, Oracle offers scalable, low-cost server virtualization for heterogeneous applications.

Oracle VM is free server virtualization software that fully supports both Oracle and non-Oracle applications, and is three times more efficient than other server virtualization products.
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