Q: How can I check if my system is up to date and the two required hotfixes are installed?
A: In XenCenter, select a Pool, and then click the General tab. If the hotfixes are installed – they will be listed in the Updates section as shown below:
Q: XenCenter shows that the hotfixes are not installed, what should I do to bring my system up to date?
A: You will need to install two hotfixes. Refer to CTX132823 – Hotfix XS602E001 – For XenServer 6.0.2 and CTX132824 – Hotfix XS602E002 – For XenServer 6.0.2 and for more details.
Q: I downloaded the repackaged version of XenServer 6.0.2 (XenServer-6.0.201-install-cd.iso) – do I also need to install the 2 XenServer 6.0.2 hotfixes?
A: No. The repackaged XenServer 6.0.2 base installation ISO includes both hotfixes and no further action is required. If you are unsure which version is installed, check in XenCenter that the hotfixes are installed. If both are listed as installed, your system is up to date and no further action is required.
Q: I want to upgrade to XenServer 6.0.2 from XenServer 6.0.0 – what should I do?
A: You should download XenServer 6.0.2 from https://www.citrix.com/English/ss/downloads/details.asp?downloadId=2320418&productId=683148 and perform a Rolling Pool Upgrade in the normal way. Refer to CTX130421 – XenServer 6.0 Installation Guide for more details.
Q: There are 2 xs-tools ISOs inside the re-release of XenServer 6.0.2, why is this?
A: After some customers upgraded to the originally released version of XenServer 6.0.2, they noticed problems with their Windows Virtual Machines. Hotfix XS602E002 – Hotfix XS602E002 – For XenServer 6.0.2 was created to fix this issue by installing a second xs-tools.iso which contains updated Windows PV drivers.
To maintain compatibility across XenServer 6.0.2 installations, the download of XenServer 6.0.2 (made available from March 22nd 2012) is pre-patched with the two hotfixes. This means that two copies of xs-tools.iso are included in the installation for consistency. While the two ISOs are not required for customers running fresh pools, it is highly important for customers who installed XenServer 6.0.2 (from a pre-March 22nd download) who at some point may wish to install an additional host to their pool for capacity reasons.
Therefore, the repackaged XenServer 6.0.2 includes the original and the new xs-tools.iso so as to match system configurations.
Q: What are the MD5SUMs of the XenServer 6.0.2 installation ISOs?
A: The MD5SUM of the original ISO is:
3f5aa5821c293445decee2007b84cecb
The MD5SUM of the newly packaged ISO is:
9015e7a72b7323ccaef8ce8232a4ae5e
Q: What are the filenames of the XenServer xs-tools.iso files?
A: The originally released version is named xs-tools-6.0.2.iso
The updated version is named xs-tools-6.0.2-54210.iso
xapi then re-names these as Old version of xs-tools.iso and xs-tools.iso
Q. Where are the two copies of the xs-tools.iso stored on the Dom0 file system?
A. Both copies of the xs-tools.iso are stored in the same directory: /opt/xensource/packages/iso
Q. How can I verify that the new and updated version of xs-tools.iso is available on my system?
A. Enter the following commands:
xe vdi-list sr-uuid=`xe sr-list name-label="XenServer Tools" –minimal`
This returns a list of all ISOs installed in the SR named “XenServer Tools”. This list should include both Old version of xs-tools.iso and xs-tools.iso
Q. Can the old version of xs-tools.iso be manually deleted from the Dom0 file system and what are the effects?
A. Although it is technically possible, Citrix strongly recommends that customers do not alter the Dom0 file system for the following reasons:
It will not necessarily free any space since the original xs-tools .iso may be in use by a running VM.
It will cause any suspended VMs or checkpoints which reference the original xs-tools. iso to fail to resume with a “VDI cannot be found on the storage substrate” error. The VMs must be forcibly powered off to recover.
Your system will diverge from expected configuration, which may cause problems with future hotfixes or upgrades.
More information on the Hotfixes can be read here.
More information about the installation of the hotfixes can be read here.
The original post on the FAQ can be found on the Citrix knowledgebase here.