Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!enea!u30003!tomas
From: tomas@u30003.rsv.svskt.se (Tomas Ruden)
Newsgroups: comp.unix.internals
Subject: Re: hiding files under a mount point.
Message-ID: <1991Mar22.080539.15114@u30003.rsv.svskt.se>
Date: 22 Mar 91 08:05:39 GMT
References: <1991Mar18.045734.5114@brolga.cc.uq.oz.au> <1991Mar19.100615.13770@rtf.bt.co.uk>
Organization: Swedish Tax Administration
Lines: 20

In article <1991Mar19.100615.13770@rtf.bt.co.uk>
duplain@rtf.bt.co.uk (Andy Duplain) writes:
>
> No, they can't be used until you umount the filesystem.  We recently had a
> problem with our root disk space; we couldn't find out what was using it all
> up.  Then we realised that we had been very considerate and taken a copy
> of an old kernel, after a rebuild.  Unfortunetly we backed-up the kernel to
> /tmp, which wasn't mounted at the time.  Took ages to find the problem...
> take heed.
>
I have seen similar thing done on purpose. It was on a Unisys 5000/85 with
Unix V.3 (don't remember the release). On the root filesystem there was
a tiny little /usr-tree. It was just enogh files to make the system useable
without any mounts. When the system was brought to multiuser, the real /usr
filesystem was mounted and the small one was hidden by the real one.
I found that quite useful.
-- 
Tomas Ruden,  ...!sunic!u30003!tomas or tomas@u30003.rsv.svskt.se
Don't blame the Swedish Tax      !  I wish I had an English
Administration for my opinions   !  spellingchecker