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[Dazuko-devel] DazukoFS (was Re: Device file events)

From: Abhishek Nayani
Subject: [Dazuko-devel] DazukoFS (was Re: Device file events)
Date: Wed, 14 Sep 2005 02:51:24 -0600


>>> On Wed, Sep 14, 2005 at 12:59 pm,  John Ogness <address@hidden>
> Yes, "/" is an issue. However, I do not expect DazukoFS to be mounted
> and automatically cover all other mounts. DazukoFS would be mounted
> every exising mountpoint. For example, I would expect entries in
> that look like this:
> /dev/hda2 /home dazukofs subtype=ext3,subopts=defaults 0 2
> In other words, filesystems would actually be mounted by DazukoFS-
mount so
> that DazukoFS can be sure that it is "on top".
> "/" is a special case and it has not yet been decided how this can
> effectively implemented.

I guess the sequence will be bottom to top. Like: 
    mount / -> mount dazukoFS on / -> mount /home -> mount dazukoFS on

This can work even for /proc and /sys etc. The only issue would be with
removable media
for which there are no fstab entries. Most of the newer distributions
are using hotplug to
mount USB flash drives and other external storage media. One way would
be to either 
monitor /etc/mtab || /proc/mounts to know of a mount event and then
mount dazukoFS 
on it or to wrap the mount command itself. Both look messy to me. Any
solutions ?

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