Server 2008 R2 wont boot after restart

At Friday I had strange problem. Windows 2008 R2 server didn’t start up after restart. It stop on message where loading Group Policy Client. When we finally receive option to boot to safe mode, server stops at loading classpnp.sys file.

Why we had this problem? At first problem was with IBM 8k RAID controller. Controller was dying and it works in unusual way. Windows show this in system log


I change controller but problem still exist. It seems that windows wrote some bad records in rebooting process. I was pretty certain in that, after we change everything on server except HDDs I was leave server to boot to safe mode for two hours. After two hours server still tries to loading classpnp.sys.

DART tools didn’t help me, because boot stops after finding installation. Instead getting DART console, only I can see is loading circle of Windows Server 2008 R2. Colleague of mine Romeo Mlinar help me with advice. On this controller I hade two arrays: RAID 1 and RAID 5. He told me: try to remove RAID 5 array and try to boot. He got a point

But instead of DART tools I use Windows Server 2008 R2 installation CD. Boot from CD use option to repair installation and get CMD.

First step was to do: sfc /SCANNOW /OFFBOOTDIR=C:\ /OFFWINDIR=C:\WINDOWS\

Second step was to do: StartRep.exe from recovery directory in installation CD.

After this two steps everything was back to normal an my server was booting normaly

Windows 7 and iPhone tethering

It seems that iPhone and Windows 7 have problems with tethering over Bluetooth on Lenovo notebook.

When you try to connect your iPhone with notebook using Bluetooth you will receive driver error for “Bluetooth peripheral device”. Of course you can control everything on your iPhone but you couldn’t connect to internet using tethering.

I don’t know why is this happened but solution is simple.

You must go to Control Panel – Devices and Printers. Right click on your iPhone then Properties – Services

Uncheck option Wireless iAP

Click OK

Now right click on your iPhone again

Then Connect Using – Access Point

And now you are connected to internet using Bluetooth on your iPhone

Installing Hyper-V 2008 R2 SP1 on IBM X346 with ADAPTEC SCSI u320 controller

It could be pretty tricky to install Hyper-V 2008 R2 SP1 on IBM x346 with Adaptec controller. If didn’t want to throw away my old server so I decided to install Hyper-V on it to create testing environment.

I do this with colleague of mine, and we faced with problem. Hyper-V wont install on IBM x346. Why? Server asked for driver….

I think that driver is so old that Hyper-V don’t have it in its drivers database, and You can’t install it using ServerGuide CD.

What were we do.

After spending hours trying to install Hyper-V on IBM x346 with Adaptec u320 SCSI controller, finally we have solution.

My colleague Luka Gros spend finds x64 driver for Adaptec SCSI controller. He found it on this link.

After downloading, you must extract this driver and burn it on CD

Steps what we are do after that is:

booting from Hyper-V 2008 R2 SP1 and starting installation

when asked for driver change CD to one with driver and click Browse

find driver on CD and click Next

change CD to installation CD again and finish your installation

Hyper-V is installed and running fine now



If You need to manipulate with physical HDD on your Hyper-V, MMC console will return error “RPC server unavailable”.

To avoid this run this command with elevated privileges:

netsh advfirewall firewall set rule group=”Remote Volume Management” new enable=yes

Thanks to Luka Gros