10.04 update fail, get a BusyBox v1.10.2 error
 

I have tried numerous times to install ubuntu 10.04 through a CD and it always fails to boot. I get a message similar to this one: "BusyBox v1.10.2 (Ubuntu 1:1.10.2-2ubuntu7) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) -"

I have ubuntu 9.10 installed at the moment, and when I update it to 10.04, through update, I still get the same message.

If I were installing from a cd like I was, I could MD5 test the ISO I downloaded and check the CD for defects, but what about when all I'm doing is updating from the update manager?

Basically, it's dropping to shell.
It does this when some fatal error happens - which will appear on the lines immediately before what you posted.

The same symptoms cropped up on some systems with 9.04 as well.
http://ubuntuforums.org/showthread.php?t=1165715
... foil to boot from install media ... the workaround was to remove and reinsert the media very quickly.

Did you install and get this error on boot, or do you get it when you attempt to boot from the install media?