Question: We've migrated our email to Office 365, so I now need to remove our one and only on-premises Exchange Server (2003 Standard).

The documentation that I've read suggests that I:

1. Go to a command prompt (running as Administrator)
2. With the Exchange Server 2003 installation CD in the drive, go to the D:\Setup\i386\ directory and run Update.exe /removeorg
3. Run Setup.exe /forestprep
4. Run Setup.exe /domainprep
5. Done?

Why should I need to run setup.exe /forestprep and setup.exe /domainprep? There is no explanation of this in what I've read and when I look up what these do, it appears that they prepare for an **installation** of Exchange, not an **uninstallation**.

Answer: 
I suggest to create a file /etc/modprobe.d/blacklist-ipmi.conf containing

```
blacklist ipmi_si
blacklist ipmi_devintf
blacklist ipmi_msghandler

```
If you have **ipmitool** package installed, comment your module in 
```
/usr/lib/modules-load.d/ipmievd.conf
```