While testing Oracle Enterprise Linux 5 on Citrix based VM; It got stuck showing error “PCI: Fatal: No config space access function found” while booting the VM for the first time after installation.

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When you create a VM Citrix Xen Cloud Platform (using a storage on Network or on local server) you assign a specific amount of space i.e. 20 GB or 30GB but after sometime client ask for more disk space you have to reboot the server to attach or add more disk space. In this post I will explain how you can add additional disk space to a Linux Xen VM without downtime.

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Microsoft Windows Virtual Machine’s created on Citrix Xen doesn’t have Audio Drivers installed on it. You have a application which requires sound drivers and when you check the sound options from Control Panel (through RDP) it shows message “No Audio Device are Installed“.

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Setting time on a Virtual Machine is always a painful tasks. Different virtualization platform have different techniques of setting time like in Virtuozzo you can change the Timezone of the VM but you can’t set time as it synchronize the time from the host server.

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You have installed Citrix Xen Cloud Platform (XCP) and configured it (including network, templates, OS ISO’s etc.; even you have created your first VM with the help of documentation provided by Citrix but when you try to boot your VM for first time it throws following error as Citrix is not able to boot the VM from CD/DVD drives which are attached to it.

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