Upgrading NetVault Backup 9.2 to the 10 version failed with a 'The folder path 'NetVault/db' contains an invalid character' error. (4037029)

Upgrading NetVault Backup 9.2 to the 10 version failed with a 'The folder path 'NetVault/db' contains an invalid character' error.

Since NVBU 10.x is a completely new software and now has a PostgreSQL NVDB, you have to make sure that all the pre and post installation steps have been performed, otherwise NVBU will not function correctly.
The NVBU 10 Installation Users Guide is on the following link:

https://support.quest.com/netvault-backup/technical-documents

The following pre and post steps were performed, but unfortunately didn't resolve the issue:

1] Make sure that all relevant prerequisites have been perform from section Chapter 3 (pages 15-17) of the NVBU 10.0.1 Installation Guide.
2] Make sure that all platform specific requirements are also done from section Chapter 3 (pages 17-21) of the NVBU 10.0.1 Installation Guide.
3] Make sure that all relevant platform specific post installation requirements are done in Chapter 6 of the NVBU 10.0.1 Installation Guide (Pages 40-42).

Whilst logged in as a Domain Administrator and the AntiVirus Software was disabled, the upgrade from NVBU 9.2 to the 10 version failed with the following error message:

The folder path 'NetVault/db' contains an invalid character.

The NetVault logs shows the following error:

Error   2014/05/21 09:52:05   0   System   ITPBCK206   Failed to initialize CLI session with Scheduler when adding canned reports. Does user have the required privileges?

Trace files confirms the following messages and errors…

CLI Proxy:
2   AUDCONCT   ???   720   1   0   85157692076   Connected to auditor on 'ITPBCK206'
2   CLIPROXY   ???   720   31   0   85157692076   Cli connected to the auditor
0   AUDLOGON   ???   720   4   0   85157692076   Logon user 'default' failed
0   CLIPROXY   ???   720   37   0   85157692076   Failed to validate logon to the target process

Canned Reports:
2   CLISESS   ???   3428   16   0   85205398488   using the default account
2   CLISESS   ???   3428   17   0   85205398488   using the default password
2   CLISESS   ???   3428   4   0   85205398488   Sent CLI_PROXY_LOGON_REQUEST_MSG
2   CLISESS   ???   3428   5   0   85205398488   Got a CLI_PROXY_LOGON_REPLY_MSG
0   CLISESS   ???   3428   6   0   85205398488   Failed to logon: '
0   NVADDCAN   ???   3428   9   0   85205398488   Failed to initialize CLI session to scheduler - 'Failed to logon: ''

Auditor:
2   AUDCLISE   ???   2712   1   0   85205382889   CLI Proxy started ok...
2   AVPMAIN   ???   2712   4   0   85205398488   Hello! (174:'ITPBCK206')
2   AUDUSROP   ???   2712   29   0   85205398488   Found matching account name - UID = '0'
2   LICENSE   ???   2712   117   0   85205398488   Loaded capabilities for license serial #44188
2   AUDUSROP   ???   2712   30   0   85205398488   User is local only = 'FALSE', logon was from 'ITPBCK206'
2   AUDUSROP   ???   2712   35   0   85205398488   AudLogon(default) = 'FALSE'
2   AUDIT   ???   2712   35   0   85205398488   AudGetAuditFileName = 'C:\BakBone\NetVault\db\audit.bin'
2   AUDUSROP   ???   2712   26   0   85205398488   Sending authorisation to source (00000000)
2   AVPMAIN   ???   2712   17   0   85205414088   Received PMGR_PROCESS_DIED_MSG
2   AUDEVENT   ???   2712   170   0   85205414088   Event subsystem process died handler entered
2   AVPMAIN   ???   2712   17   0   85310169802   Received PMGR_PROCESS_DIED_MSG

NVSH:
2   NVSH   ???   3312   171   0   85225616125   Updated value for variable 'DB_DIR' to 'C:\BakBone\NetVault/db'
2   NVSH   ???   3312   7   0   85225616125   -- Depth 1  Executing TRUE  Type 0  Lines 102
2   NVSH   ???   3312   60   0   85225616125   NVSHLineType('#')
2   NVSH   ???   3312   60   0   85225616125   NVSHLineType('# Verify variables etc to decide if the installation should go ahead')
2   NVSH   ???   3312   60   0   85225616125   NVSHLineType('        echo Error - Machine name contains invalid characters')

Which confirms the original error:

The folder path 'NetVault/db' contains an invalid character.

NOTE: Page 14 of the NVBU 10 Installation Guide advises the following, as the NVDB is no longer a flat file database, but a PostgreSQL database:

During installation, the NetVault Backup Server and Client machines are assigned a name and password.

• NetVault Backup name – The NetVault Backup name is used to identify the server and client machines in a NetVault Backup Domain. By default, NetVault Backup uses the OS-assigned name of the machine. The NetVault Database is tied to the NetVault Backup Server through its name. While relocating a server, a backup of the NetVault Database is used to recover the system after installing the NetVault Backup software on the new machine. Therefore, we recommend that you do not use the OS-assigned name for the NetVault Backup Server. The NetVault Backup name can contain a maximum of 63 characters. If the name is longer than 63 characters, the NetVault Backup Service may fail to start. The NetVault Backup names can include uppercase letters (A–Z), lowercase letters (a–z), and numbers (0–9). Some features may not function properly if you include the following characters: ! @ # $ % ^ & * ( ) : - Japanese, Korean, or Chinese characters.

• NetVault Backup passwords – The NetVault Backup passwords are used while adding a client to the server. The password can contain a maximum of 100 characters. It cannot contain the following characters: < > & # |

We checked the NetVault Server and Client names and all had letters and numbers.
A NetVault User did have a “$” symbol in the password and was removed i.e. changed the password, but to no avail.

In this instance the issue was resolved by performing the following steps:

1] Stop the NetVault Services in the Configurator > Service tab.
2] Go to the …\NetVault\config directory and edit the configure.cfg file.
Find the following section:

[Directories:Database]
Type=String
Width=32
Label=Database Directory
Label Id=5965
Help=Directory in which to place Netvault's on-line database Help Id=0 reset=process manager Value=C:\BakBone\NetVault/db

3] Then change the last line to the following, as the "/" on the above path was incorrect:

Value=C:\BakBone\NetVault\db

4] Start the NetVault Services.
5] Then run the upgrade again.