On Internet Explorer 11 Endpoint Analysis Plugin Fails to Run on NetScaler Gateway Virtual Server and User is prompted to “Download” or “Skip Check”

The Endpoint Analysis (EPA) plugin fails on NetScaler Gateway virtual server, when using Internet Explorer 11 (IE 11) with Microsoft hotfix KB3025390 installed.

After installation of the Microsoft hotfix, you will be directed to a page where you can either “Download” the plugin or “Skip Check” in some builds. The EPA plugin does not run as expected.

User-added image

Related:

Lifecycle Maintenance Hotfixes – Definitions and Examples

In some instances, hotfixes might be superseded or replaced. This happens only when a subsequent hotfix includes all fixes from the earlier hotfixes, as explained in the following section.

Note: The information in this document applies primarily to the XenApp and the XenDesktop products, but might be extended to other Citrix products as well.

Access to Hotfixes

Hotfixes are available for download from the Citrix Knowledge Center. The access provided to these hotfixes is based on expected customer impact, as mentioned in the following table:

Hotfix Type

Expected Customer Impact

Access

General Release

Affects a wide customer base

All customers

Limited Release

Affects a smaller number of customers

Customers with Priority and/or Priority Plus Offering Level, Technical Relationship Manager,CTPs, and Partners

Hotfix Replacement and Supersedence

Any hotfix that includes all fixes from an earlier hotfix either supersedes or replaces the original hotfix, as mentioned in the following table:

Original Hotfix Type

Subsequent Hotfix Type

Status of Original Hotfix

Rationale

Limited Release

General Release

Superseded hotfix is no longer available

All customers can access the subsequent hotfix

Limited Release

Limited Release

Superseded hotfix is no longer available

Customers with access to the original hotfix can also access the subsequent hotfix

General Release

General Release

Superseded hotfix is no longer available

All customers can access the subsequent hotfix

General Release

Limited Release

Replaced, but remains available for download from the Citrix Knowledge Center

Original hotfix remains available for customers who cannot access the Limited Release hotfix

Note: The terms superseded and replaced, as used in this article and on the Citrix Knowledge Center, are used to illustrate the difference between release types. They are not used in the same manner as Microsoft, Windows Installer, however Citrix hotfix readmes use the same terms.

The following table provides an examples of original hotfixes and their status:

Original Hotfix Subsequent Hotfix Status Rationale
Limited Release Hotfix A is available for download to customers with Subscription Advantage and a My Citrix account General Release Hotfix B is released. It contains all fixes from Hotfix A, plus new fixes Hotfix B supersedes Hotfix A Hotfix A is no longer available for download because Hotfix B is available to all customers
General Release Hotfix C is available for download from the Knowledge Center to all customers Limited Release Hotfix D is released. It contains all fixes from Hotfix C, plus new fixes Hotfix D replaces Hotfix C Both remain available for download because Hotfix D is available only to customers with Subscription Advantage and a My Citrix account
Limited Release Hotfix E is available for download to customers with Subscription Advantage and a My Citrix account Limited Release Hotfix F is released. It contains fixes, but does not contain all fixes from Hotfix E The status of Hotfix E is unchanged; Hotfix F is offered as a separate, additional hotfix Both are available for download because Hotfix F does not contain all of the fixes from Hotfix E

Related:

LIMITED RELEASE – Hotfix DStudioWX64_7_15_5001 – For Citrix Studio 7.15 LTSR CU5 – English

Hotfix package name: DStudioWX64_7_15_5001.zip

For: XenApp and XenDesktop 7.15 Long Term Service Release (LTSR) Cumulative Update 5 (CU5) for Citrix Studio 7.15. System Requirements

Replaces: None

Date: March, 2020

Languages supported: English (US), French (FR), German (DE), Japanese (JA), Spanish (ES), Simplified Chinese (SC)

Readme version: 1.00

Readme Revision History

Version Date Change Description
1.00 March, 2020 Initial release

Important Notes about This Release

Caution! This release may require you to edit the registry. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

Known Installation/Uninstallation Issues

If Citrix Studio is open during an upgrade, if you select the setting “Close the applications and attempt to restart them” on the Files in Use page of the installation wizard of this hotfix, the following message might appear:

“Setup was unable to automatically close all requested applications. Please ensure that the applications holding files in use are closed before continuing with the installation.”

If the message appears, you can safely close the message and click OK to continue with the installation.

Important Disclaimer – Limited Release Hotfix

If the Download link is not available on this page and you wish to obtain this limited distribution release, visit our support site at http://www.citrix.com/support and open a support case using your Citrix account credentials, or contact your reseller at http://www.citrix.com/partners/locator.

Testing of this release was targeted only at the affected functionality, and regression and stress testing were minimal. Introduce this release to a test environment for evaluation before deploying it to a production environment.

TO THE EXTENT PERMITTED BY APPLICABLE LAW, CITRIX AND ITS SUPPLIERS MAKE AND YOU RECEIVE NO WARRANTIES OR CONDITIONS, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND CITRIX AND ITS SUPPLIERS SPECIFICALLY DISCLAIM WITH RESPECT TO THE HOTFIX ANY CONDITIONS OF QUALITY, AVAILABILITY, RELIABILITY, SECURITY, LACK OF VIRUSES, BUGS OR ERRORS, OR SUPPORT AND ANY IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION, MERCHANTABILITY, NONINFRINGEMENT, OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT PERMITTED BY APPLICABLE LAW, NEITHER CITRIX, NOR ITS SUPPLIERS SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL, MULTIPLE, PUNITIVE OR OTHER DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF DATA, LOSS OF INCOME, LOSS OF OPPORTUNITY, LOST PROFITS, COSTS OF RECOVERY OR ANY OTHER DAMAGES), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, AND WHETHER OR NOT FOR BREACH OF CONTRACT, NEGLIGENCE OR OTHERWISE, AND WHETHER OR NOT CITRIX, ITS SUPPLIERS, OR LICENSORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Where to Find Documentation

This document describes the issue(s) resolved by this release and includes installation instructions. For additional product information, including supported operating systems and system requirements, see Cumulative Update 5 (CU5) on the Citrix Product Documentation site.

New Fixes in This Release

  1. When you upgrade Citrix Studio from Version 7.6 to Version 7.15, the time it takes to open some wizards (such as Machine Catalog and Delivery Group) might increase.

    [From DStudioWX64_7_15_5001] [CVADHELP-13267]

Fixes from Replaced Hotfixes

No hotfixes were replaced by this release.

Installing and Uninstalling this Release

Notes:

  • Citrix Studio must be closed before installing or uninstalling this hotfix.
  • This release is packaged as a .zip file containing the replacement DStudioWX64_7_15_5001.msi file. For more information about deploying msi files, see Microsoft article 884016 or visit the Microsoft Web site and search on keyword msiexec.
  • Caution: Downgrades, also known as rollbacks, from this upgrade are not supported and might leave your systems in an unstable state. This upgrade does not patch the existing installation – it fully replaces it with a new installation. As a result, uninstalling this package removes the entire component from the computer. If the need arises to revert to an earlier version of the product, you must uninstall this package and then reinstall the earlier version of the product. Reverting to an earlier version of the product might result in the loss of settings you configure while this upgrade is installed.
  • If the need arises to restore the original settings and functionality provided by this hotfix, you must uninstall the hotfix before reinstalling it according to the installation instructions below.
  • To install this package successfully, servers must not have registry modification restrictions in place.
  • This hotfix might or might not prompt you to restart the server when the installation or uninstallation is complete. You must restart the server for the installation to complete.

To install this hotfix:

  1. Copy the file to a shared folder on the network.
  2. Extract the compressed file and save the DStudioWX64_7_15_5001.msi file on the computer you want to update.
  3. Run the .msi file.
  4. Restart the computer.

To uninstall this hotfix:

  1. From the Start menu, select Settings > Control Panel.
  2. In Control Panel, double-click Programs and Features.
  3. Highlight the hotfix you want to remove and click Uninstall.
  4. Follow the directions on-screen.

Related:

LIMITED RELEASE – Hotfix DStudioWX86_7_15_5001 – For Citrix Studio 7.15 LTSR CU5 – English

Hotfix package name: DStudioWX86_7_15_5001.zip

For: XenApp and XenDesktop 7.15 Long Term Service Release (LTSR) Cumulative Update 5 (CU5) for Citrix Studio 7.15. System Requirements

Replaces: None

Date: March, 2020

Languages supported: English (US), French (FR), German (DE), Japanese (JA), Spanish (ES), Simplified Chinese (SC)

Readme version: 1.00

Readme Revision History

Version Date Change Description
1.00 March, 2020 Initial release

Important Notes about This Release

Caution! This release may require you to edit the registry. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

Known Installation/Uninstallation Issues

If Citrix Studio is open during an upgrade, if you select the setting “Close the applications and attempt to restart them” on the Files in Use page of the installation wizard of this hotfix, the following message might appear:

“Setup was unable to automatically close all requested applications. Please ensure that the applications holding files in use are closed before continuing with the installation.”

If the message appears, you can safely close the message and click OK to continue with the installation.

Important Disclaimer – Limited Release Hotfix

If the Download link is not available on this page and you wish to obtain this limited distribution release, visit our support site at http://www.citrix.com/support and open a support case using your Citrix account credentials, or contact your reseller at http://www.citrix.com/partners/locator.

Testing of this release was targeted only at the affected functionality, and regression and stress testing were minimal. Introduce this release to a test environment for evaluation before deploying it to a production environment.

TO THE EXTENT PERMITTED BY APPLICABLE LAW, CITRIX AND ITS SUPPLIERS MAKE AND YOU RECEIVE NO WARRANTIES OR CONDITIONS, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND CITRIX AND ITS SUPPLIERS SPECIFICALLY DISCLAIM WITH RESPECT TO THE HOTFIX ANY CONDITIONS OF QUALITY, AVAILABILITY, RELIABILITY, SECURITY, LACK OF VIRUSES, BUGS OR ERRORS, OR SUPPORT AND ANY IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION, MERCHANTABILITY, NONINFRINGEMENT, OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT PERMITTED BY APPLICABLE LAW, NEITHER CITRIX, NOR ITS SUPPLIERS SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL, MULTIPLE, PUNITIVE OR OTHER DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF DATA, LOSS OF INCOME, LOSS OF OPPORTUNITY, LOST PROFITS, COSTS OF RECOVERY OR ANY OTHER DAMAGES), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, AND WHETHER OR NOT FOR BREACH OF CONTRACT, NEGLIGENCE OR OTHERWISE, AND WHETHER OR NOT CITRIX, ITS SUPPLIERS, OR LICENSORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Where to Find Documentation

This document describes the issue(s) resolved by this release and includes installation instructions. For additional product information, including supported operating systems and system requirements, see Cumulative Update 5 (CU5) on the Citrix Product Documentation site.

New Fixes in This Release

  1. When you upgrade Citrix Studio from Version 7.6 to Version 7.15, the time it takes to open some wizards (such as Machine Catalog and Delivery Group) might increase.

    [From DStudioWX86_7_15_5001] [CVADHELP-13267]

Fixes from Replaced Hotfixes

No hotfixes were replaced by this release.

Installing and Uninstalling this Release

Notes:

  • Citrix Studio must be closed before installing or uninstalling this hotfix.
  • This release is packaged as a .zip file containing the replacement DStudioWX86_7_15_5001.msi file. For more information about deploying msi files, see Microsoft article 884016 or visit the Microsoft Web site and search on keyword msiexec.
  • Caution: Downgrades, also known as rollbacks, from this upgrade are not supported and might leave your systems in an unstable state. This upgrade does not patch the existing installation – it fully replaces it with a new installation. As a result, uninstalling this package removes the entire component from the computer. If the need arises to revert to an earlier version of the product, you must uninstall this package and then reinstall the earlier version of the product. Reverting to an earlier version of the product might result in the loss of settings you configure while this upgrade is installed.
  • If the need arises to restore the original settings and functionality provided by this hotfix, you must uninstall the hotfix before reinstalling it according to the installation instructions below.
  • To install this package successfully, servers must not have registry modification restrictions in place.
  • This hotfix might or might not prompt you to restart the server when the installation or uninstallation is complete. You must restart the server for the installation to complete.

To install this hotfix:

  1. Copy the file to a shared folder on the network.
  2. Extract the compressed file and save the DStudioWX86_7_15_5001.msi file on the computer you want to update.
  3. Run the .msi file.
  4. Restart the computer.

To uninstall this hotfix:

  1. From the Start menu, select Settings > Control Panel.
  2. In Control Panel, double-click Programs and Features.
  3. Highlight the hotfix you want to remove and click Uninstall.
  4. Follow the directions on-screen.

Related:

Hotfix XS81E001 – For Citrix Hypervisor 8.1

Who Should Install This Hotfix?

This is a hotfix for customers running Citrix Hypervisor 8.1.

Note: Ensure that you use XenCenter 8.1.2 or later to install this hotfix. The latest version of XenCenter is available from the Citrix Hypervisor Download site.

Information About this Hotfix

Component Details
Prerequisite None
Post-update tasks* Restart Host
Content live patchable** Yes
Baselines for Live Patch Citrix Hypervisor 8.1
Revision History

Published on Feb 13, 2020

** Available to Enterprise Customers.

Issues Resolved In This Hotfix

This hotfix resolves the following issues:

  • When running Reclaim Space on a thinly provisioned LUN with more than 2 TB of free space, the operation fails with an ioctl not supported error.

Installing the Hotfix

Customers should use either XenCenter or the Citrix Hypervisor Command Line Interface (CLI) to apply this hotfix. As with any software update, back up your data before applying this update. Citrix recommends updating all hosts within a pool sequentially. Upgrading of hosts should be scheduled to minimize the amount of time the pool runs in a “mixed state” where some hosts are upgraded and some are not. Running a mixed pool of updated and non-updated hosts for general operation is not supported.

Note: The attachment to this article is a zip file. It contains the hotfix update package only. Click the following link to download the source code for any modified open source components XS81E001-sources.iso. The source code is not necessary for hotfix installation: it is provided to fulfill licensing obligations.

Installing the Hotfix by using XenCenter

Choose an Installation Mechanism

There are three mechanisms to install a hotfix:

  1. Automated Updates
  2. Download update from Citrix
  3. Select update or Supplemental pack from disk

The Automated Updates feature is available for Citrix Hypervisor Premium Edition customers, or to those who have access to XenServer through their Citrix Virtual Apps and Desktops entitlement. For information about installing a hotfix using the Automated Updates feature, see the Applying Automated Updates in the Citrix Hypervisor documentation.

For information about installing a hotfix using the Download update from Citrix option, see Applying an Update to a Pool in the Citrix Hypervisor documentation.

The following section contains instructions on option (3) installing a hotfix that you have downloaded to disk:

  1. Download the hotfix to a known location on a computer that has XenCenter installed.
  2. Unzip the hotfix zip file and extract the .iso file
  3. In XenCenter, on the Tools menu, select Install Update. This displays the Install Update wizard.
  4. Read the information displayed on the Before You Start page and click Next to start the wizard.
  5. Click Browse to locate the iso file, select XS81E001.iso and then click Open.
  6. Click Next.
  7. Select the pool or hosts you wish to apply the hotfix to, and then click Next.
  8. The Install Update wizard performs a number of update prechecks, including the space available on the hosts, to ensure that the pool is in a valid configuration state. The wizard also checks whether the hosts need to be rebooted after the update is applied and displays the result.
  9. Follow the on-screen recommendations to resolve any update prechecks that have failed. If you want XenCenter to automatically resolve all failed prechecks, click Resolve All. When the prechecks have been resolved, click Next.

  10. Choose the Update Mode. Review the information displayed on the screen and select an appropriate mode.
  11. Note: If you click Cancel at this stage, the Install Update wizard reverts the changes and removes the update file from the host.

  12. Click Install update to proceed with the installation. The Install Update wizard shows the progress of the update, displaying the major operations that XenCenter performs while updating each host in the pool.
  13. When the update is applied, click Finish to close the wizard.
  14. If you chose to carry out the post-update tasks, do so now.

Installing the Hotfix by using the xe Command Line Interface

  1. Download the hotfix file to a known location.
  2. Extract the .iso file from the zip.
  3. Upload the .iso file to the Pool Master by entering the following commands:

    (Where -s is the Pool Master’s IP address or DNS name.)

    xe -s <server> -u <username> -pw <password> update-upload file-name=<filename>XS81E001.iso

    Citrix Hypervisor assigns the update file a UUID which this command prints. Note the UUID.

    04ffe352-3f45-4a2d-bc79-e3f2f13b6d79

  4. Apply the update to all hosts in the pool, specifying the UUID of the update:

    xe update-pool-apply uuid=04ffe352-3f45-4a2d-bc79-e3f2f13b6d79

    Alternatively, if you need to update and restart hosts in a rolling manner, you can apply the update file to an individual host by running the following:

    xe update-apply host=<host> uuid=04ffe352-3f45-4a2d-bc79-e3f2f13b6d79

  5. Verify that the update was applied by using the update-list command.

    xe update-list -s <server> -u root -pw <password> name-label=XS81E001

    If the update is successful, the hosts field contains the UUIDs of the hosts to which this update was successfully applied. This should be a complete list of all hosts in the pool.

  6. If the hotfix is applied successfully, restart each host in the pool, starting with the master.
  7. Use the update-pool-clean command to remove the update files from all hosts in the pool. This command frees up space on shared storage and does not uninstall the update.

    xe update-pool-clean uuid=04ffe352-3f45-4a2d-bc79-e3f2f13b6d79

Files

Hotfix File

Component Details
Hotfix Filename XS81E001.iso
Hotfix File sha256 9f1eca3c219c03fd002ebd61ea982e8d826c7e903b07761506f1eac13694188d
Hotfix Source Filename XS81E001-sources.iso
Hotfix Source File sha256 70b055290c0009f069a7eb7329fe084da1958e8e1e56d624cf36fbb7f82cfffa
Hotfix Zip Filename XS81E001.zip
Hotfix Zip File sha256 db7280bd8f791c91d0d2839e1d04f50f2887e2c26f48eb1cbedeb66b930c718f
Size of the Zip file 31.51 MB

Files Updated

kernel-4.19.19-6.0.10.x86_64.rpm
kernel-livepatch_4.19.19_6.0.9-1-1.x86_64.rpm

More Information

For more information, see Citrix Hypervisor Documentation.

If you experience any difficulties, contact Citrix Technical Support.

Related:

Hotfix XS80E003 – For Citrix Hypervisor 8.0

Who Should Install This Hotfix?

This is a hotfix for customers running Citrix Hypervisor 8.0.

Information About this Hotfix

Component Details
Prerequisite None
Post-update tasks* Restart Host
Content live patchable** No
Baselines for Live Patch N/A
Revision History

Published on Jul 24, 2019

** Available to Enterprise Customers.

Issues Resolved In This Hotfix

This hotfix resolves the following issues:

  • After live migration, a Windows VM can hang for over a minute.
  • If you run your Windows VMs with the viridian_reference_tsc flag enabled, the VM might crash during migration.

This hotfix also allows for the following improvement:

  • You can now increase the performance of Windows VMs by enabling the viridian_reference_tsc and viridian_stimer flags.

    Any new VMs created after you install this hotfix have these flags enabled by default and benefit from the performance improvement. To get the benefit of the improved performance in your existing VMs, complete the steps in the After installing this hotfix section of this article.

This hotfix also includes the following previously released hotfixes:

Installing the Hotfix

Customers should use either XenCenter or the Citrix Hypervisor Command Line Interface (CLI) to apply this hotfix. As with any software update, back up your data before applying this update. Citrix recommends updating all hosts within a pool sequentially. Upgrading of hosts should be scheduled to minimize the amount of time the pool runs in a “mixed state” where some hosts are upgraded and some are not. Running a mixed pool of updated and non-updated hosts for general operation is not supported.

Note: The attachment to this article is a zip file. It contains the hotfix update package only. Click the following link to download the source code for any modified open source components XS80E003-sources.iso. The source code is not necessary for hotfix installation: it is provided to fulfill licensing obligations.

Installing the Hotfix by using XenCenter

Choose an Installation Mechanism

There are three mechanisms to install a hotfix:

  1. Automated Updates
  2. Download update from Citrix
  3. Select update or Supplemental pack from disk

The Automated Updates feature is available for Citrix Hypervisor Premium Edition customers, or to those who have access to XenServer through their Citrix Virtual Apps and Desktops entitlement. For information about installing a hotfix using the Automated Updates feature, see the Applying Automated Updates in the Citrix Hypervisor documentation.

For information about installing a hotfix using the Download update from Citrix option, see Applying an Update to a Pool in the Citrix Hypervisor documentation.

The following section contains instructions on option (3) installing a hotfix that you have downloaded to disk:

  1. Download the hotfix to a known location on a computer that has XenCenter installed.
  2. Unzip the hotfix zip file and extract the .iso file
  3. In XenCenter, on the Tools menu, select Install Update. This displays the Install Update wizard.
  4. Read the information displayed on the Before You Start page and click Next to start the wizard.
  5. Click Browse to locate the iso file, select XS80E003.iso and then click Open.
  6. Click Next.
  7. Select the pool or hosts you wish to apply the hotfix to, and then click Next.
  8. The Install Update wizard performs a number of update prechecks, including the space available on the hosts, to ensure that the pool is in a valid configuration state. The wizard also checks whether the hosts need to be rebooted after the update is applied and displays the result.
  9. Follow the on-screen recommendations to resolve any update prechecks that have failed. If you want XenCenter to automatically resolve all failed prechecks, click Resolve All. When the prechecks have been resolved, click Next.

  10. Choose the Update Mode. Review the information displayed on the screen and select an appropriate mode.
  11. Note: If you click Cancel at this stage, the Install Update wizard reverts the changes and removes the update file from the host.

  12. Click Install update to proceed with the installation. The Install Update wizard shows the progress of the update, displaying the major operations that XenCenter performs while updating each host in the pool.
  13. When the update is applied, click Finish to close the wizard.
  14. If you chose to carry out the post-update tasks, do so now.

Installing the Hotfix by using the xe Command Line Interface

  1. Download the hotfix file to a known location.
  2. Extract the .iso file from the zip.
  3. Upload the .iso file to the Pool Master by entering the following commands:

    (Where -s is the Pool Master’s IP address or DNS name.)

    xe -s <server> -u <username> -pw <password> update-upload file-name=<filename>XS80E003.iso

    Citrix Hypervisor assigns the update file a UUID which this command prints. Note the UUID.

    b99a5e83-e335-431a-a1d1-10e222bc4bfa

  4. Apply the update to all hosts in the pool, specifying the UUID of the update:

    xe update-pool-apply uuid=b99a5e83-e335-431a-a1d1-10e222bc4bfa

    Alternatively, if you need to update and restart hosts in a rolling manner, you can apply the update file to an individual host by running the following:

    xe update-apply host=<host> uuid=b99a5e83-e335-431a-a1d1-10e222bc4bfa

  5. Verify that the update was applied by using the update-list command.

    xe update-list -s <server> -u root -pw <password> name-label=XS80E003

    If the update is successful, the hosts field contains the UUIDs of the hosts to which this update was successfully applied. This should be a complete list of all hosts in the pool.

  6. If the hotfix is applied successfully, restart each host in the pool, starting with the master.
  7. Use the update-pool-clean command to remove the update files from all hosts in the pool. This command frees up space on shared storage and does not uninstall the update.

    xe update-pool-clean uuid=b99a5e83-e335-431a-a1d1-10e222bc4bfa

After installing this hotfix

This hotfix includes updates to VM templates. These updates automatically apply to any VMs you create after applying the hotfix. To apply the updates to your existing Windows VMs and benefit from the performance improvements provided in this hotfix, complete the following steps:

  1. List all VMs that use viridian:

    xe vm-list platform:viridian=true –minimal

  2. For each of the VMs that you want to update:
    1. Refer to the viridian flags in the updated template for the VM. For example:

      xe template-list name-label=’Windows 7 (64-bit)’ params=platform

    2. Update the viridian flags in the platform field to match the updated template. For example:

      xe vm-param-set uuid=<vm-uuid> platform:viridian=true platform:viridian_time_ref_count=true platform:viridian_reference_tsc=true platform:viridian_apic_assist=true platform:viridian_crash_ctl=true platform:viridian_stimer=true

      Note: Only the viridian_reference_tsc and viridian_stimer flags are required to benefit from the performance improvements in this hotfix, but we advise that you set all available viridian flags.

    3. Shut down the VM.

      Do not restart the VM. The restart function does not apply these updates. Ensure that you fully shut down your VM.

      If you do not shut down your VM, you can introduce inconsistency in your viridian flags. This inconsistency can prevent you from applying further hotfixes to the Citrix Hypervisor server that hosts this VM or updating the Citrix Hypervisor server that hosts this VM to a later version.

    4. Start the VM.

Note: You can update all VMs that use viridian with a single command:

xe vm-list platform:viridian=true –minimal | tr , ‘n’ | xargs -n 1 -I {} xe vm-param-set uuid={} platform:viridian=true platform:viridian_time_ref_count=true platform:viridian_reference_tsc=true platform:viridian_apic_assist=true platform:viridian_crash_ctl=true platform:viridian_stimer=true

Only use this command if you want to update all of your VMs. You must shut down and start the VMs again for the updates to take effect.

This process does not update the snapshots associated with these VMs. Do not attempt to update existing snapshots. Instead create a new snapshot from your updated VM.

If you use your VMs with Citrix Virtual Apps and Desktops Machine Creation Services or Citrix Provisioning, ensure that you update your golden images.

Files

Hotfix File

Component Details
Hotfix Filename XS80E003.iso
Hotfix File sha256 c0f0454c1b1bfda741d391851d02f28570cbda9498893e0c8767c0e6c4198981
Hotfix Source Filename XS80E003-sources.iso
Hotfix Source File sha256 22a9c553d27ad01acf7efc80266497eae4959d5c99fc80250064516742a1b44a
Hotfix Zip Filename XS80E003.zip
Hotfix Zip File sha256 d14b96615b96ac7aa7ca42e2fc5b98c953d2cffb150910e88ef27da51af8b48f
Size of the Zip file 7.85 MB

Files Updated

guest-templates-json-1.7.21-1.noarch.rpm
guest-templates-json-data-linux-1.7.21-1.noarch.rpm
guest-templates-json-data-other-1.7.21-1.noarch.rpm
guest-templates-json-data-windows-1.7.21-1.noarch.rpm
guest-templates-json-data-xenapp-1.7.21-1.noarch.rpm
microcode_ctl-2.1-26.xs5.x86_64.rpm
xen-dom0-libs-4.11.1-7.4.x86_64.rpm
xen-dom0-tools-4.11.1-7.4.x86_64.rpm
xen-hypervisor-4.11.1-7.4.x86_64.rpm
xen-libs-4.11.1-7.4.x86_64.rpm
xen-tools-4.11.1-7.4.x86_64.rpm

More Information

For more information, see Citrix Hypervisor Documentation.

If you experience any difficulties, contact Citrix Technical Support.

Related:

Hotfix XS71ECU2026 – For Xenserver 7.1 Cumulative Update 2

Who Should Install This Hotfix?

This is a hotfix for customers running XenServer 7.1 Cumulative Update 2.

All customers who are affected by the issues described in CTX266932 – Citrix Hypervisor Multiple Security Updates should install this hotfix.

Note: This hotfix is available only to customers on the Customer Success Services program.

Information About this Hotfix

Component Details
Prerequisite None
Post-update tasks Restart Host
Content live patchable** No
Baselines for Live Patch N/A
Revision History

Published on Dec 11, 2019

** Available to Enterprise Customers.

Issues Resolved In This Hotfix

This security hotfix addresses the vulnerabilities as described in the Security Bulletin above. In addition, it resolves the following issues:

  • On some hardware, UEFI-booted XenServer hosts can crash on reboot.

This hotfix also includes the following previously released hotfixes:

Installing the Hotfix

Customers should use either XenCenter or the XenServer Command Line Interface (CLI) to apply this hotfix. When the installation is complete, see the Post-update tasks in the table Information About this Hotfix for information about any post-update tasks you should perform for the update to take effect. As with any software update, back up your data before applying this update. Citrix recommends updating all hosts within a pool sequentially. Upgrading of hosts should be scheduled to minimize the amount of time the pool runs in a “mixed state” where some hosts are upgraded and some are not. Running a mixed pool of updated and non-updated hosts for general operation is not supported.

Note: The attachment to this article is a zip file. It contains the hotfix update package only. Click the following link to download the source code for any modified open source components XS71ECU2026-sources.iso. The source code is not necessary for hotfix installation: it is provided to fulfill licensing obligations.

Installing the Hotfix by using XenCenter

Choose an Installation Mechanism

There are three mechanisms to install a hotfix:

  1. Automated Updates
  2. Download update from Citrix
  3. Select update or Supplemental pack from disk

The Automated Updates feature is available for XenServer Enterprise Edition customers, or to those who have access to XenServer through their XenApp/XenDesktop entitlement. For information about installing a hotfix using the Automated Updates feature, see the Applying Automated Updates in the XenServer documentation.

For information about installing a hotfix using the Download update from Citrix option, see Applying an Update to a Pool in the XenServer documentation.

The following section contains instructions on option (3) installing a hotfix that you have downloaded to disk:

  1. Download the hotfix to a known location on a computer that has XenCenter installed.
  2. Unzip the hotfix zip file and extract the .iso file
  3. In XenCenter, on the Tools menu, select Install Update. This displays the Install Update wizard.
  4. Read the information displayed on the Before You Start page and click Next to start the wizard.
  5. Click Browse to locate the iso file, select XS71ECU2026.iso and then click Open.
  6. Click Next.
  7. Select the pool or hosts you wish to apply the hotfix to, and then click Next.
  8. The Install Update wizard performs a number of update prechecks, including the space available on the hosts, to ensure that the pool is in a valid configuration state. The wizard also checks whether the hosts need to be rebooted after the update is applied and displays the result.
  9. Follow the on-screen recommendations to resolve any update prechecks that have failed. If you want XenCenter to automatically resolve all failed prechecks, click Resolve All. When the prechecks have been resolved, click Next.

  10. Choose the Update Mode. Review the information displayed on the screen and select an appropriate mode.
  11. Note: If you click Cancel at this stage, the Install Update wizard reverts the changes and removes the update file from the host.

  12. Click Install update to proceed with the installation. The Install Update wizard shows the progress of the update, displaying the major operations that XenCenter performs while updating each host in the pool.
  13. When the update is applied, click Finish to close the wizard.
  14. If you chose to carry out the post-update tasks, do so now.

Installing the Hotfix by using the xe Command Line Interface

  1. Download the hotfix file to a known location.
  2. Extract the .iso file from the zip.
  3. Upload the .iso file to the Pool Master by entering the following commands:

    (Where -s is the Pool Master’s IP address or DNS name.)

    xe -s <server> -u <username> -pw <password> update-upload file-name=<filename>XS71ECU2026.iso

    XenServer assigns the update file a UUID which this command prints. Note the UUID.

    3cc6c3d6-b591-4931-9c1f-d6e4a8c21ae1

  4. Apply the update to all hosts in the pool, specifying the UUID of the update:

    xe update-pool-apply uuid=3cc6c3d6-b591-4931-9c1f-d6e4a8c21ae1

    Alternatively, if you need to update and restart hosts in a rolling manner, you can apply the update file to an individual host by running the following:

    xe update-apply host=<host> uuid=3cc6c3d6-b591-4931-9c1f-d6e4a8c21ae1

  5. Verify that the update was applied by using the update-list command.

    xe update-list -s <server> -u root -pw <password> name-label=XS71ECU2026

    If the update is successful, the hosts field contains the UUIDs of the hosts to which this patch was successfully applied. This should be a complete list of all hosts in the pool.

  6. If the hotfix is applied successfully, restart each host in the pool, starting with the master.
  7. Use the update-pool-clean command to remove the update files from all hosts in the pool. This command frees up space on shared storage and does not uninstall the update.

    xe update-pool-clean uuid=3cc6c3d6-b591-4931-9c1f-d6e4a8c21ae1

Files

Hotfix File

Component Details
Hotfix Filename XS71ECU2026.iso
Hotfix File sha256 aafd945cb28b3e271323445643cf6ace4a2c0d74be02e3923731be877cb00386
Hotfix Source Filename XS71ECU2026-sources.iso
Hotfix Source File sha256 ea658476cdb0bfcea05fb4f82af60feff603704e34ce0a9cc78eb0a56e4165e8
Hotfix Zip Filename XS71ECU2026.zip
Hotfix Zip File sha256 d72f8c0c47a785002cff1521175a91b36ef9fb6e8ca117f744ed9ac3e6b6329c
Size of the Zip file 7.08 MB

Files Updated

microcode_ctl-2.1-26.xs10.x86_64.rpm
xen-dom0-libs-4.7.6-1.32.x86_64.rpm
xen-dom0-tools-4.7.6-1.32.x86_64.rpm
xen-hypervisor-4.7.6-1.32.x86_64.rpm
xen-libs-4.7.6-1.32.x86_64.rpm
xen-tools-4.7.6-1.32.x86_64.rpm
xenserver-status-report-1.1.1.2-313.noarch.rpm

More Information

For more information, see XenServer Documentation.

If you experience any difficulties, contact Citrix Technical Support.

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