Unable to re-read the partition table (device or resource busy).

[tebbens]

Trying to install Fedora Core 4 on a brand new system.

Just after the "About To Install" screen I get the following error messages;

Error informing kernel about modifications to the partition /dev/sdb2 - device or resource busy.
The Kernel was unable to re-read the partition table on /dev/sdb (device or resource busy).

Does anybody know what is causing this and how to fix it ?

Thanks !
Matthew