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Knowledge Base

"Unable to contact the source vCenter" error at pre-check when upgrading vCenter Server Appliance from 6.5 to 6.7 (67339)

Last Updated: 8/27/2019Categories: TroubleshootingTotal Views: 41808Language:
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Symptoms

Upgrading vCenter Server Appliance(VCSA) from 6.5 to 6.7 fails with the error:

Unable to contact the source vCenter

In installer-xxxxxxxx-xxxxxxxxx.log you may see entries similar to:

2019-02-28T18:58:14.052Z - info: VM Identifier for Source VC: 1048
2019-02-28T18:58:14.176Z - debug: initiateFileTransferFromGuest error: ServerFaultCode: Failed to authenticate with the guest operating system using the supplied credentials.
2019-02-28T18:58:14.176Z - debug: Failed to get fileTransferInfo:ServerFaultCode: Failed to authenticate with the guest operating system using the supplied credentials.
2019-02-28T18:58:14.176Z - debug: Failed to get url of file in guest vm:ServerFaultCode: Failed to authenticate with the guest operating system using the supplied credentials.
2019-02-28T18:58:14.176Z - error: Error in getting fileData for nodeType. Error: ServerFaultCode: Failed to authenticate with the guest operating system using the supplied credentials.
2019-02-28T18:58:14.177Z - error: Failed to read the nodetype, Error: Failed to authenticate with the guest operating system using the supplied credentials.

Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.

Cause

This issue occurs when the vCenter OS password ( root password ) is expired.

Resolution

To resolve this issue, reset the password.

Process to Reset the Password:

To reset the password follow the steps below:

Connect to the source vCenter using SSH.

Execute "chage -l root"  command to check if the root password has expired

Change the password using the command "passwd"

Initiate the upgrade again

Note: If SSH access is not available, see How to reset the lost or forgotten root password in vCenter Server Appliance 6.5

Related Information

Resolution: Failed to authentication with guest OS using supplied credentials

Detectable by VMware SkylineTM

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Additional Resources

KB
•
End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

KB
•
Download and Install VMware Fusion (2014097)

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