On Wed, 02 Feb 2011 23:02:23 +0100 Marcus Osdoba <marcus.osdoba@googlemail.com> wrote: > I successfully followed the steps given in the Debian wiki [1] to come > over some restrictions to make debian work on a read only rootfs. > > [ ] RO support is not compliant with Debian architecture. The way you've defined it, no. Debian follows the FHS and only having /var/ readwrite is itself not compliant with FHS. The ReadOnly wiki page explicitly extends read-write requirements to /etc/, /home/, /srv/ and /tmp as well as /var/, so you have to use some bindmounts anyway. It also clearly documents the packages which require a writable /etc/ and has a few workarounds. I'm not sure what you're expecting Emdebian to do. Using bind mounts to allow writes into /srv and /home is not something that happens in the packages, you need to sort that out in /etc/fstab. multistrap can put that file in place using the setupscript option but as to what actually goes into that file and how it works with other packages, that's not down to the packages themselves. Emdebian Grip has the same support for this as Debian - it requires custom setups. i.e. hacks. Most systems which would need a read-only fs would probably be better with a smaller distribution. That's the question around Baked - it's so far from what Debian can normally do that it's questionable whether it actually is Debian anymore. A read only fs is a step beyond Baked. There's no point using Grip for a read only fs because Grip implicitly requires a writable fs, as does Debian. You're just wasting space if you use Grip rather than Baked - all that code meant to allow smooth upgrades and post-installation configuration (all the code that makes Debian Debian) is just useless. Don't install it in the first place - use Baked and create the entire configuration exactly as you want. Emdebian can help with the tools but the actual content of any Baked system - or read-only fs - is down to whoever wants that particular solution. -- Neil Williams ============= http://www.data-freedom.org/ http://www.linux.codehelp.co.uk/ http://e-mail.is-not-s.ms/
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