Do you boot from an external startup disk?  Which one?

My IOmega USb 80gb will not be recognized as a volume that can accept the OS X install from the disk (10.4.3). I need the room for the jampacks and Reason 3.0 apps and I only have 10gb left on the internal harddrive. Does it need to a fire wire port with the appropriate partition and format to get the install software on the disk to be able to be the start up disk. If I get the "This volume can not run OS X " again on another drive I will be ******. Please let me know what external drive you boot from on your iBook

John,
No, I don't think it can. I believe you need to use Mac OS Extended Journaled (HFS+) unless you specifically need to use UFS (Unix File System). Knowledge Base Document #301270 says:
Volume format choices
Once you've selected this option, you can choose from two types of volume formats:
Mac OS Extended (Journaled)—This is the default option and should be used unless you have a specific reason not to.
UNIX File System—Only choose this option if you specifically need it.
I believe it is the same reason you need HSF+ in order to use CCC (Carbon Copy Cloner).
Jon

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