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vCenter 6.0 migration failing [Error: failed to retrieve version information from remote platform service controller.]

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Issue: failed to retrieve version information from remote platform service controller.

 

  • Migrating a Windows Server 2008 R2 installed vCenter Server 6.0 to vCenter Server Appliance 6.7U2 using external PSC,  fails with the Error: failed to retrieve version information from remote platform service controller.
  • In the migration-assistant.log, you see entries similar as:

 

2020-02-17 05:11:35.759Z| migration-assistant-13843380| I: Entering function: ValidateExportDir

2020-02-17 05:11:35.759Z| migration-assistant-13843380| I: DirectoryPermissionCheck: Will check export dir: "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\"

2020-02-17 05:11:35.760Z| migration-assistant-13843380| I: GetPathPermissions: Longest existing path for "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\" is "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\"

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: GetPathPermissions: Dir  perms for "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\": MigrationAssistant R1 W1 E1 D1 Dc1 ACL1 service R69716481 W16843009 E16843009 D16843009 Dc188 ACL48957392 anyone R1228 W48562176 E2753176 D0 Dc7 ACL69009408

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: GetPathPermissions: Longest existing path for "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\" is "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\"

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: GetPathPermissions: File perms for "C:\Users\Administrator\AppData\Local\VMware\Migration-Assistant\": MigrationAssistant R1 W1 E1 D1 Dc1 ACL1 service R69716481 W16843009 E16843009 D16843009 Dc188 ACL48956560 anyone R1228 W48562176 E2753176 D0 Dc7 ACL69009408

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: ValidateExportDir: Required core space: 5260; core, events and tasks space: 10174; All space: 13452; FreeSpace: 28471;

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: Leaving function: ValidateExportDir

2020-02-17 05:11:35.761Z| migration-assistant-13843380| I: ConnectToLdapServer: Connecting to ldap server [PSC01.internal.local] on port [636]

2020-02-17 05:11:35.764Z| migration-assistant-13843380| E: ConnectToLdapServer: Failed to connect to the LDAP server. Error code: 81

2020-02-17 05:11:35.764Z| migration-assistant-13843380| W: RetrievePSCMajorMinorVersion: Failed to connect to server [PSC01.internal.local]] to validate PSC version using Platform Services Conntroller LDAPs port [636].

2020-02-17 05:11:35.764Z| migration-assistant-13843380| I: ConnectToLdapServer: Connecting to ldap server [PSC01.internal.local]] on port [11712]

2020-02-17 05:11:56.765Z| migration-assistant-13843380| E: ConnectToLdapServer: Failed to connect to the LDAP server. Error code: 81

2020-02-17 05:11:56.765Z| migration-assistant-13843380| E: RetrievePSCMajorMinorVersion: Failed to connect to server [PSC01.internal.local] on legacy LDAPs port [11712].

PSC.png

Cause: Transport Layer Security (TLS) 1.2 is the default protocol for Platform Service Controller 6.7 by default, while  TLS 1.2 is not supported by default on Windows Server 2008 R2

 

Resolution:

Enable TLS 1.2 on Windows Server 2008 R2.
Note: This procedure modifies the Windows registry. Before making any registry modifications, ensure that you have a current and valid backup of the registry and the virtual machine.

  1. Navigate to the registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols
  2. Create a new folder and label it TLS 1.2.
  3. Create two new keys with the TLS 1.2 folder, and name the keys Client and Server.
  4. Under the Client key, create two DWORD (32-bit) values, and name them DisabledByDefault and Enabled.
  5. Under the Server key, create two DWORD (32-bit) values, and name them DisabledByDefault and Enabled.
  6. Ensure that the Value field is set to 0 and that the Base is Hexadecimal for DisabledByDefault.
  7. Ensure that the Value field is set to 1 and that the Base is Hexadecimal for Enabled.
  8. Reboot the Windows Server 2008 R2 machine.
  9. Now re-initiate the migration assistance tool it worked perfectly.

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