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List:       bugtraq
Subject:    Re: BoS: amodload.tar.gz - dynamic SunOS modules
From:       "J.R.Valverde (jr)" <jrvalverde () samba ! cnb ! uam ! es>
Date:       1996-06-24 15:45:48
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>I have wondered about how to set up a system with a read only / and /usr
>partition, but as you say things like mount wanting to write into /etc
>really spoil the idea.  Does anyone have a list of issues that stop /
>
        One possibility is to use a "union" file system, overlying a RW FS
over the RO / and /usr. That way it should be fairly simple to modify files
transparently as well as to later seeing which files have been modified.

        Union filesystems appeared with BSD4.4 and won't probably be
available on most UNIXes. But they're a neat idea, and if you ask for it,
who knows, maybe your vendor will provide it in the next release?

        Just a few ramblings.

                                jr

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