I've gone through the Mandrake install twice and both times everything appeared to go smoothly until it was time to reboot. After BIOS screen and IDE detection I get the message 'DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER'. Thinking this might be easily corrected I booted again from the install CD and accessed the 'Rescue' option. I thought there might be problems with the partitions but it appears they are there. In fact, one of the command options is 'lsparts'. I ran that and the partitions listed correctly. There is also an option to reinstall the bootloader which I also did...that did not appear to help either. There is no other OS on the drive so my assumption is that grub/LILO installs by default and that bootloader is written to the MBR.
At this point I'm a bit baffled--any info or support is greatly appreciated.