brent timothy saner on 29 Apr 2009 13:29:03 -0700


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Re: [PLUG] Creating a large, multiple device read-only file system


A read ony /?

Yeah, I'd imagine- things like openwrt work kinda like that (except they have a separate jffs partition so you can save and restore important stuff that isn't included in the distribution. Like ooohhhh, firewall rules for instance...)

I'd invest in a lot of RAM- you'll need it for temp things that need runtime writing. Some things off the top of my head are /tmp, /var/tmp, /var/cache, /var/log. Etc

You'll also need to do a good amount of initramfs/initrd hacking unless you planning on remounting the thing ro late/last in the boot process.

Do a lot of reading on livecd's and other things that use static /'s, lots of nifty ideas for hacks there.

It might help if we know what it's for also (unless you're prohibited by NDA)- might get some good alternatives if possible. As we all know by now, there's usually more than one way to do something in *nix

(lack of GPG due to message sent via blackberry device)

-----Original Message-----
From: "K.S. Bhaskar" <bhaskar@bhaskars.com>

Date: Wed, 29 Apr 2009 16:07:04 
To: Philadelphia Linux User's Group Discussion List<plug@lists.phillylinux.org>
Subject: [PLUG] Creating a large, multiple device read-only file system


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___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug