Subject: re: MFS over ISO-9660 union mounted with no swap space?
To: matthew green <>
From: Erik E. Fair <>
List: tech-kern
Date: 05/11/1999 21:14:32
At 17:20 -0700 5/11/99, matthew green wrote:
>   1. Is unionfs stable enough for this?
>well, probably.  it seems to work OK if you don't access it at multiple
>concurrent times (eg, 'make -j6 build' :).

Hmm. We could argue about whether this is "stable"; I suppose I just have
to test and shake out the bugs. I wonder if netbooting successive kernels
with root on CD-ROM would do it? I'd rather not burn new media for each new
kernel to test...

>   2. How does one mount an MFS (which has no node in /dev) over / with
>here is my MFS fstab line for my /tmp:
>	swap	/tmp	mfs	rw

Um, mine looks the same way, however, you're missing the point. That mount
is a standard mount, where everything underneath the mount point (if there
were anything) would be inaccessible. I was talking about a "union" mount
of MFS on top of a CD-ROM FS where everything on the CD-ROM would still be
accessible. How would you express that? I think I might need new options
for mount_mfs...

	Erik <>