Tag: windows server

How to restore Backup ROM version on HP servers using ROM Based Setup Utility.

Recently, we upgraded firmware on all our blade enclosures and servers. This time we got stuck with the Citrix servers. We were informed that the Citrix applications are not working after the recent updates. After lot of struggle it was traced out that the issue was due to the ROM version incompatibility and we had to restore the previous ROM version.

This was achieved using the “Redundant ROM Settings” available under RBSU (ROM Based Setup Utility). Please follow the below steps to restore your previous ROM without searching for the setup files.

1. Access ROM Based Setup Utility by pressing the F9 key during power on.
2. Select “Advanced Options”.
3. Select “Advanced System ROM Options”.
4. Choose “ROM Selection”.
5 Select “Switch to Backup ROM”.
6. Press the Enter key.
7. Press the Esc key to exit the current menu or press the F10 key to exit RBSU. The server restarts automatically.




Filed under: HP (Servers/products), Windows(2003/2008/2012)Tagged with: , , , , , , , , , , , , , ,

Rejoin a computer to domain without restart

We have been in the situation where we find that the Windows Server has its security relationship with the domain failed. In the past we had to remove the computer from the domain and then join it back again to reestablish the relationship.

This involved two reboots (one to leave, one to join). If it was a server that took a while to boot, the process could take so long.

However, I recently came across an article today which mention a PowerShell command to rejoin a computer to the domain without restarting it

Test-ComputerSecureChannel is one of those cool little PowerShell cmdlets that doesn’t get the recognition it deserves. Running the cmdlet by itself checks whether the relationship with the domain controller is still good. If it comes back True then everything is okay. If it comes back False then the relationship needs to be fixed.

Using Test-ComputerSecureChannel with the –credential –Repair options allows you to repair the relationship with the domain without any restarts. You run the command, sign out and then can sign in with your domain credentials. For example, to repair the relationship with the WINDOWSITPRO domain, issue the command:

Test-ComputerSecureChannel –credential domain\Administrator –Repair

When signed on as a local administrator.

Test-ComputerSecureChannel has been around since Windows Server 2008 R2.

Filed under: Windows(2003/2008/2012)Tagged with: , , , , , ,