WSUS won’t uninstall or re-install

  • WSUS 3.0 SP2 is missing SQL server Express or has been damaged somehow.
  • When opening WSUS you receive a SQL error when trying to connect.
  • You cannot uninstall WSUS. An attempt to uninstall/re-install fails with an error.
  • The event log shows event id: 1034 with “Removal success or error status: 1603”

HOW TO FIX:

  1. Open REGEDIT in and locate: HKLM\Software\Microsoft\UpdateServices\ServerSetup.
  2. Change the value of “wYukonInstalled” to 0x0 (zero) and ensure that the value of “SqlInstanceIsRemote” is oxo [hexa] (zero) [decimal].
  3. Download and run the WSUS 3.0 SP2 installer. You should now be able to remove the product using the installer. Select none of the check boxes (to remove database, logs or updates), we can remove these manually later.
  4. Run the WSUS 3.0 SP2 installer again and (this time it should allow you to install). Install the Full product including management console.
  5. Select the option to use an existing database server.
  6. It should find the Internal Database you installed and configured.
  7. Step through the WSUS configuration wizard.

CentOS Network Bonding

You can also bond two network cards together to get more network traffic throughput. This means that you need to configure your network bonding in “load-balancing” mode and make both network cards active at the same time. This way you double the network throughput to and from your server. But if you want to successfully run a “load-balancing” bonding configuration your networking infrastructure (routers, switches,…) MUST ALSO be configured for port load balancing.

network-bonding1. Create bonding configuration file

Create a new file called bonding.conf in /etc/modprobe.d directory (full path – /etc/modprobe.d/bonfing.conf) and insert the following lines.

    Active backup configuration (one active network card)

alias bond0 bonding
options bond0 miimon=80 mode=1

    Balance-tlb configuration

alias bond0 bonding
options bond0 miimon=80 mode=1
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