Have seen on some forums trouble with CD1 on Mandrake 10 install. I had the very same trouble... My CD will boot anything else that I have tried, EXCEPT the mandrake CD1.
The Mandrake errata has a simple solution. It goes something like, "if CD1 will not work, use CD2." Ahem. Well, sure. If I HAD a CD2.
Simple solution is roughly as follows (it just proves once agian how easy Linux is for anyone to install):
Boot Windows and run Partition Magic to make some room for Linux (I made about 20 GB of unpartitioned space to play with).
Download all 3 iso images. Save them somewhere. I used a Windows partition to save them at first.
Check MD5 sigs. Everything OK? Cool then burn them onto good media at 8X.
Boot CD1. What? CD1 will not boot? Then make a boot floppy and try that. This is only a theory, as I have no working floppy drive. The air in this part of China is so bad that a lot of floppies die very young. So...
Copy the boot.iso image from the images directory on CD1 to your hard drive, then use it to burn a boot CD.
[edited: at this point, you can use the CD's you just made for beer coasters. They keep the rings off the tables quite nicely]
Download Knoppix live CD iso. Burn it to CD.
Boot Knoppix.
Make a Linux partition just big enough to hold the Mandrake iso images.
Format the partition and put the iso images in. I put each one in a different directory (/iso-1, /iso-2, /iso-3).
Boot again using the boot CD you created above from the boot.iso image, then direct install to the CD1 image. NOTE: Don't delete the linux partition with the iso images when you partition for install!
Do a limited install (you can only install from the first CD this way, so far as I know, but it is really faster like this in the long run).
Boot into Mandrake 10 and set your iso images to mount using something like this in fstab:
/dev/hda4 /mnt/hd ext2 defaults 1 2
/mnt/hd/Mandrakelinux-10.0-Community-Download-CD1.i586.iso /mnt/iso-1 iso9660 ro,loop,auto 0 0
/mnt/hd/Mandrakelinux-10.0-Community-Download-CD2.i586.iso /mnt/iso-2 iso9660 ro,loop,auto 0 0
/mnt/hd/Mandrakelinux-10.0-Community-Download-CD3.i586.iso /mnt/iso-3 iso9660 ro,loop,auto 0 0
Point Software Media Manager to the iso directories, then use the package manager to install everything that you missed by doing a limited install.
Mandrake is so simple and easy to use.
For sure I will tell any first-timer to give it a go.
Seriously, it is worth the trouble, and Mandrake will get it sorted out in their own sweet fucking time.
Went through a lot of changes to get this one installed, but it sure is slick once you get it working!