9.5 U3a to U4 Upgrade Issues - Veeam Mount Service

[GregorD]

CamileB
do you have installed sp2 for Windows 2008? https://support.microsoft.com/en-us/hel ... r-2008-sp2

[DakoJordan]

That's a bit strange that you are experiencing the issue on 2012R2, however I would first of all check for SHA-2 code signing updates.

Please keep us posted about the situation.

Hi Wishr,

I had opened a case with Veeam to get this resolved, but I ended up finding the workaround solution myself. I believe it has to do with permissions/UAC, but I'm unsure where. Hopefully this is useful to others that might be having the same issue. Here's what I discovered:

Server 1:

• OS: Windows Server 2016
  • Patch Status: fully patched
  • Driver Signature Enforcement: Disabled through pre-boot menu
  • Current user: User-created admin account with membership in domain admins
  • Problem
  • • Installing the MSI by right-clicking the MSI and choosing install prompts for elevation through UAC
  • • Installation fails on the “processing drivers” step of the installer with the error “Failed to install file system drivers”
  • Resolution
  • • Open a command prompt as admin
  • • Navigate to the Packages folder of the mounted ISO of Update 4
  • • Run MsiExec /I VeeamMountService.msi
  • • Install succeeds without issue

Server 2:

• OS: Windows Server 2012 R2
  • Patch Status: not fully patched
  • Driver Signature Enforcement: Enabled
  • Current user: User-created admin account with membership in domain admins
  • Problem
  • • Installing the MSI by right-clicking the MSI and choosing install prompts for elevation through UAC
  • • Installation fails on the “processing drivers” step of the installer with the error “Failed to install file system drivers”
  • Resolution
  • • Navigate to the Packages folder of the mounted ISO of Update 4 through Windows Explorer
  • • Shift-right-click MSI and choose “Run as different user”
  • • Enter domain administrator credentials (so the CMD window is running as the native domain administrator account, not the admin account created by us)
  • • Install succeeds without issue

[wishr]

Hi Jordan,

Thanks for sharing the information. Could you please also let us know your support case ID?

Thank you