From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.windriver.com ([147.11.1.11]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1RjCJn-0001WF-Lo for openembedded-core@lists.openembedded.org; Fri, 06 Jan 2012 17:07:00 +0100 Received: from ALA-HCA.corp.ad.wrs.com (ala-hca [147.11.189.40]) by mail.windriver.com (8.14.3/8.14.3) with ESMTP id q06FxYCK014636 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Fri, 6 Jan 2012 07:59:34 -0800 (PST) Received: from Macintosh-5.local (172.25.36.228) by ALA-HCA.corp.ad.wrs.com (147.11.189.50) with Microsoft SMTP Server id 14.1.255.0; Fri, 6 Jan 2012 07:59:34 -0800 Message-ID: <4F071A65.90708@windriver.com> Date: Fri, 6 Jan 2012 09:59:33 -0600 From: Mark Hatle Organization: Wind River Systems User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: References: <20120106100934.GA3879@jama.jama.net> <77ADD6E7-5632-4B1A-ABC3-6E4DAEEAE3B6@dominion.thruhere.net> In-Reply-To: <77ADD6E7-5632-4B1A-ABC3-6E4DAEEAE3B6@dominion.thruhere.net> Subject: Re: libs transition /usr/lib -> /lib questions X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: Patches and discussions about the oe-core layer List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Jan 2012 16:07:00 -0000 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit On 1/6/12 4:34 AM, Koen Kooi wrote: > > Op 6 jan. 2012, om 11:09 heeft Martin Jansa het volgende geschreven: > >> FWIW today I've noticed that systemd is going other way around >> http://www.freedesktop.org/wiki/Software/systemd/separate-usr-is-broken > > And http://fedoraproject.org/wiki/Features/UsrMove > > I guess it's time to publish my angstrom branch doing that after the holidays :) I respectfully disagree with both of the above URLs. The root partition is still very useful as a "small" set of applications and libraries required for booting. Most systems these days contain a combined root and usr partition, which is fine. However, there are a lot of systems that I've worked on in the past and I expect in the future that, root being a small R/O system is necessary. initramfs can solve some problems, but introduces other issues. Many of the systems I've worked on simple don't have enough flash to be able to store the bootloader, kernel and an initramfs [as well as other system items required by the devices]. In this case a base rootfs makes the most sense. So as I mentioned in my previous email -- there are really three options to supporting this: *) Move the libraries from /usr to / *) Move the binaries from / to /usr *) Reconfigure the binaries to no longer need the library in /usr --- But with that said, we also should work on making it easier to generate an initramfs that is capable of premounting all of the filesystems and doing other actions for an "early boot" capability before handing off control to the real system. (And I do believe systemd is the future of initscripts within Linux and OE-Core for the majority of non-simple systems!) --Mark > _______________________________________________ > Openembedded-core mailing list > Openembedded-core@lists.openembedded.org > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core