How to Copy a Virtual Machine From One Storage Repository to Another

This article describes how to copy a virtual machine VM from one type of storage repository to another. The example in this article shows how to copy a VM from local storage to Network File Share NFS storage...

XenServer - Overview of Disaster Recovery Options

This article provides an overview of different backup/restore methods available in XenServer for Virtual Machine Metadata. Background Backup/Restore or Site Recover/Disaster Recovery options in XenServer have evolved over recent product versions. This document briefly explains those options...

Unable to Connect to High Availability Enabled XenSever Pool and All Servers in Pool are in Emergency Mode

This article provides resolution to connectivity issues to the pool in XenCenter. Following are some of the issues that you might experience: Cannot connect to the pool in XenCenter Cannot start or migrate the virtual machines, although the virtual machines are active and running. All the servers...

Linux Virtual Machines are Unable to Boot from DVD on XenServer

On XenServer, a user can run both Linux and Windows virtual machines, and like physical machines, it can be set to boot from various sources. However, when a Linux virtual machine is set to boot from DVD, it can fail with the following error message:...

Error ID: XDDS:A75A86BB When Adding Machines to a Streamed Catalog Error Occurs

While adding machines to a streamed catalog, wizard shows the error“The virtual machine with MAC address xx:xx:xx:xx:xx:xx in the selected Device Collection could not be found on any available connection”. Exception : Citrix.Console.Models.Exceptions.ScriptException The virtual machine CTX2-TTM01...

How to Enable HTML5 Connections to Provisioning Services Based Catalogs

Enabling connections from Receiver for HTML5 to desktops deployed using Provisioning Services. Background Enabling connections from Receiver for HTML5 to desktops in Provisioning Services PVS based catalogs might require additional steps to complete depending on the persistence of the write cache...

Setting vDisk Boot Menu as a Default Option

This article describes how to enable the first menu option as the default boot choice without prompting when vDisk boot menu appears. Background A Provisioning Services vDisk boot menu appears when the user is starting a provisioned Virtual Machine, but the user wants the Virtual Machine to start...

Error: XDDS:84D81E3A Unable to Read Disk. Failed to create Machine Catalog. Permission to perform this operation was denied.

Error: XDDS:84D81E3AUnable to Read Disk.Failed to create Machine Catalog. Permission to perform this operation was denied" when creating machine catalog...

Cannot Connect to vCenter Through the Streamed VM Setup Wizard to Create VMs

Cannot connect to vCenter throughthe Streamed VM Setup Wizard in order to create Virtual Machines VMs...

“Cannot connect to the HyperVisor" when connecting to Hyper-V from the Machine Creation Wizards

When trying to connect to SCVMM to enumeratetemplates for Provisioning Services, the following error message appears: “Cannot connect to the HyperVisor at IP address of Hyper-V. Object reference not set to an instance of an object.”...

Provisioning Services Server Target Devices BSOD with KERNEL_SECURITY_CHECK_FAILURE When Cache is Set on RAM

Provisioning Services PVS Server target devices streamed to a vSphere Virtual Machine displays a blue screen withKERNELSECURITYCHECKFAILURE when cache is set on RAM...

How to Troubleshoot Provisioning Services Server Machine Account Password

This article contains information about troubleshooting the Provisioning Services PVS Server machine account passwords...

Error: "STOP: 0x0000007B ... " After Updating the Virtual Machine Tools on Provisioning Services

After switching vDisk to Private Mode and upgrading the hosting infrastructure’s Virtual Machine tools VM tools, Virtual Machine stops and displays a blue screen with the following stop error: STOP: 0x0000007B Note: This behavior does not occur with Microsoft’s Hyper-V Integration Services...

Troubleshooting Linux Virtual Machines in XenServer

This article describes about troubleshooting Linux virtual machines in XenServer. Serial console was used to access UNIX server consoles and most of the network devices switches, routes. The simplicity of serial port hardware and its universality make them popular. Serial console apart from...

How to Export a Virtual Machine to an External USB Drive

This article describes how to export a XenServer Virtual Machine VM to a USB storage device...

Machine Account Password Fails to Update

While configuring Active Directory machine account password management in the virtual disk file properties, the machine account password expires after the determined value timeout without successfully changing...

How to Create a Designated Update Virtual Machine and Add a Host Connection to Hosts Node

This article explains how to create a designated Update Virtual Machine VM and add a host connection to the Hosts node. Note : This article is part 1 of the three articles on how to manage vDisk for automatic updates. 1. CTX137757 – How to Create a Designated Update Virtual machine and adding a...

UBUNTU-CVE-2024-40953

In the Linux kernel, the following vulnerability has been resolved: KVM: Fix a data race on lastboostedvcpu in kvmvcpuonspin Use READ,WRITEONCE to access kvm-lastboostedvcpu to ensure the loads and stores are atomic. In the extremely unlikely scenario the compiler tears the stores, it's...

CVE-2024-40925 block: fix request.queuelist usage in flush

In the Linux kernel, the following vulnerability has been resolved: block: fix request.queuelist usage in flush Friedrich Weber reported a kernel crash problem and bisected to commit 81ada09cc25e "blk-flush: reuse rq queuelist in flush state machine". The root cause is that we use...

CVE-2024-40925

CVE-2024-40925 involves the Linux kernel and a fault in block layer MQ flush handling. The root cause was a faulty use of rq->queuelist during PREFLUSH/POSTFLUSH sequences, where list_move_tail(&rq->queuelist, pending) could operate on an uninitialized queue when rq was popped from plug-&gt...