K.S. Bhaskar on 29 Apr 2009 13:49:57 -0700

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

Thanks.  It's not for /.  Unfortunately I am not at liberty to discuss what the application need is.  Hint: I work in the high end database business.

-- Bhaskar

On Wed, Apr 29, 2009 at 4:20 PM, brent timothy saner <brent.saner@gmail.com> wrote:
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)

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