Re: Union file system

Eric W. Biederman (
27 Nov 1996 18:00:08 -0600

>>>>> "Mikko" == Mikko J Rauhala <> writes:

Mikko> On Wed, 27 Nov 1996, D. Chiodo wrote:

>> Symlinks? Mount all the cd, network, disk, etc, then make symlinks from
>> whereyou want you everything to appear to wherever the appropriate files
>> are...

Mikko> Won't cut it. We're talking about a system that would allow you to eg.
Mikko> mount a CD-ROM drive and then mount another filesystem "over" that, so
Mikko> that if you write to the file system, the CD-ROM files are hidden behind
Mikko> the new files on the writable media. Would be rather handy in some cases...

The cyrus people messing with guile have a hacked nfs server that
(unless the reporting is all wrong) will allow this capability. You
might have to configure it some yourself though. There was a posting
on linux-announce a while ago about this. The claim was that it could
do everything the hurd could do only slower.