Union file system

Keith Owens (kaos@edison.dialix.com.au)
Wed, 27 Nov 1996 00:30:24 +1100 (EST)

Does anybody know of a union file system for Linux? Alternatively any
writeups on why it is/is not a good idea?

Looking for a way to take multiple levels of data, some on cdrom, some on
network, some on disk and make it look like a single level. All updates
should be written to the top level.