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Re: Integrate Knoppix in Debian (was: Re: Debian Enterprise?)

Anthony Towns <aj@azure.humbug.org.au> writes:

> On Wed, Nov 26, 2003 at 07:11:11PM +0100, Thomas Hood wrote:
> > Info: I have a page that summarizes read-only root issues:
> >     http://panopticon.csustan.edu/thood/readonly-root.html
> Things like:
>     * ifupdown writes to /etc... a bug?
> aren't really relevant for this, since they can be "configured" out
> of the way (in this case by making /etc/network/ifstate a symlink to
> /var/run/ifupdown-state, and making sure /var/run is available early
> enough).

It was a bug until code was added to cope with a symlink to some
writeable area. Same with /etc/mtab. There are sveral patches around
(one accepted but not yet added by upstream) to allow /etc/mtab to
link to something other than /proc/mounts.

> This isn't a general solution, but it is enough to get livecd's working
> (where you already know you're mounting /var as a ramdisk).
> I do wonder if we wouldn't be better off just saying "/var will be mounted
> by the time /etc/rcS.d/S40networking runs", even if that means systems
> that NFS mount /var have to have special networking scripts they use
> to do that. That makes the common case (where /var is a local disk or
> a ramdisk) easy, but the uncommon case is still possible.
> Cheers,
> aj

As I said, debix can take care of all that on a much lower and
earlier level so that should not concern.


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