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VM virt-install 安装各个系统配置Debian 8virt-install \--accelerate \--name debian8 \--ram 1024 \--controller type=scsi,model=virtio-scsi \--disk path=/home/date/debian8.qcow2,size=10,sparse=true,cache=none,bus=scsi \--vcpus 1 \--os-type linux \--os-variant generic \--network bridge=br0 \--graphics none \--console pty,target_type=serial \--location 'http://ftp.nl.debian.org/debian/dists/jessie/main/installer-amd64/' \--extra-args 'console=ttyS0,115200n8 serial'1234567891011121314virt-install \--accelerate \--name debian8 \--ram 1024 \--controller type=scsi,model=virtio-scsi \--disk path=/home/date/debian8.qcow2,size=10,sparse=true,cache=none,bus=scsi \--vcpus 1 \--os-type linux \--os-variant generic \--network bridge=br0 \--graphics none \--console pty,target_type=serial \--location 'http://ftp.nl.debian.org/debian/dists/jessie/main/installer-amd64/' \--extra-args 'console=ttyS0,115200n8 serial'Debian 7virt-install \--accelerate \--name debian7 \--ram 1024 \--controller type=scsi,model...

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Database ConfigurationownCloud requires a database in which administrative data is stored. The following databases are currently supported:MySQL / MariaDBSQLitePostgreSQLOracleThe MySQL or MariaDB databases are the recommended database engines. However, because it is a file based database with the least administrative overhead, SQLite is chosen by default.NoteBecause SQLite does not handle large datasets or large numbers of users well, we recommend that it be used only for single user ownCloud installations, or for simple testing setups.RequirementsChoosing to use MySQL / MariaDB, PostgreSQL, or Oracle as your database requires that you install and set up the server software first.NoteThe steps for configuring a third party database are beyond the scope of this document. Please refer to the documentation for your specific database choice for instructions.ParametersFor setting up ownCloud to use any database, use the instructions in Installation Wizard. You should not have to edit the...

3D acceleration in virtual machines - Part 1: VMware & DirectX - Tutorial Updated: December 31, 2008 Running virtualized operating systems on top of existing hosts is a great idea. It's fun, it's cool, it allows you to experiment with software before committing to your real platform, it allows you to do things you would not normally dare, it gives you enormous flexibility, and it significantly reduces costs of deployment. But the one thing that most virtualization software lacks is the 3D acceleration for guest operating systems. Or used to lack ... 3D acceleration in virtual machines has become a reality. Introduction In this series of articles, I will show you the simple hacks required to have 3D acceleration enabled in your guest operating systems! This means that your virtual machines will not be limited to 2D ap...

Network Configuration Examples (Xen 4.1+)(Redirected from Host Configuration/Networking)Jump to: navigation, searchContents [hide] 1 Overview2 Distribution Network Configuration Examples2.1 Bridging2.1.1 Disable Netfilter on Bridges (All Distributions)2.1.2 Example Debian-style bridge configuration (e.g. Debian, Ubuntu)2.1.3 Red Hat-style bridge configuration (e.g. RHEL, Fedora, CentOS)2.2 Openvswitch2.3 Routing2.3.1 Enabling Routing (All Distributions)2.4 Network Address Translation (NAT)2.4.1 Enabling NAT (All Distributions)3 Distribution Specific Resources3.1 Debian & Ubuntu3.2 Fedora3.3 Gentoo OverviewWhen using the xl toolstack the host networking configuration is not configured by the toolstack but rather administrators are required to setup an appropriate network configuration using the tools provided by their host distribution.There are three main styles of network setup for a Xen host, bridged, routed and nat. The default and most common is bridged. From Xen 4....

[root@localhost qemu]# ./configure ERROR: DTC (libfdt) version >= 1.4.0 not present. Your options:         (1) Preferred: Install the DTC (libfdt) devel package         (2) Fetch the DTC submodule, using:             git submodule update --init dtc解決方式git submodule update --init dtc

QEMU with Open vSwitch networkThis article is designed to show the steps needed to create a basic and minimal Open vSwitch network to be used by a QEMU virtual machines(s) managed with libvirt. This type of network provides a much more powerful switching solution than the legacy NAT and bridge forwarding solutions. NoteThis article is written with the assumption that you already understand how to create and configure a QEMU virtual machine and how to manage them using libvirt and related tools like virsh.Contents1 Context2 Background on OpenFlow and Open vSwitch3 System Setup3.1 Kernel3.2 libvirt3.3 Open vSwtich3.3.1 Startup and enable the daemons:3.4 Setup eth13.5 Setup vSwitch3.6 Setup libvirt3.7 OpenRC4 ClosingContextThere all quite a few different networking designs that can be created; but for the sake of keeping this simple we are going to work under the assumption that we are trying to configure a host OS on a computer that has 2 physical ethernet ports. The first port (eth0) i...

How to fake a VMs guest OS CPUID For the most software products the license verification is done with license keys. During my time in the IT I have also seen some products, where the license is tied to the underlying hardware of your server. Mostly this is realized with license files, which include the ID of your CPU. The application checks if the ID within this file matches to the actual CPU ID to complete this mechanism. I have virtualized some servers with applications, which used this kind of license checks. The normal and probably easiest way is to request / generate a new license file for your new (virtual) hardware. Some weeks ago a customer had the special situation that the software vendor didn´t exists anymore and his physical old server was crashing all the time, which was hosting this special application. He already created a new VM and installed the application but didn´t get any further, because the license file wasn´t accepted. Without a valid license the application d...

Virtual Development BoardIf you want to have an Embedded Linux Development Board, and you don't want to pay for it, then you can DIY a Virtual Development Board.The Virtual Development Board is an emulation board which made from QEMU, actually it's a Virtual Machine. Contents1 Debug Mode1.1 QEMU1.1.1 Download QEMU1.1.2 Install QEMU1.2 Bootloader1.2.1 Prepare Cross Toolchain1.2.2 Download U-Boot1.2.3 Cross compile U-Boot1.2.4 Debug U-Boot1.3 Linux Kernel1.3.1 Download Linux Kernel1.3.2 Cross Compile Linux Kernel1.3.3 Load Linux Kernel1.3.3.1 Download and Install Open TFTP Server1.3.3.2 prepare qemu-ifup & qemu-ifdown1.3.3.3 tftpboot uImage1.3.4 run linux kernel1.3.4.1 prepare the rootfs1.3.4.2 prepare the nfs1.3.4.3 run linux kernel1.4 driver1.4.1 add a device to QEMU1.4.2 write the device driver1.5 GUI2 Run Mode2.1 QEMU2.1.1 Support FLASH on QEMU2.1.2 Fix Compilation Errors2.2 U-Boot2.2.1 burn U-Boot into flash3 References4 External linksDebug ModeQEMUDownload QEMUThere are two wa...