Date: Mon, 2 Jun 2003 10:19:42 -0700 From: Gordon Tetlow <gordont@gnf.org> To: arch@FreeBSD.org Cc: Tim Kientzle <kientzle@acm.org> Subject: Making a dynamically-linked root Message-ID: <20030602171942.GA87863@roark.gnf.org>
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--/ke75lzkNdJ8e8mR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I'm planning on making a dynamically-linked root partition by 5.2. To that end, I'm planning on doing to the following: Integrate Tim Kientzle's /rescue patches into the tree Create /lib and populate with all the libs needed to support dynamically linked binaries in /bin and /sbin Have a big (probably NO_DYNAMIC_ROOT) knob to switch from static to dynamic. There will be a performance hit associated with this. I did a quick measurement at boot and my boot time (from invocation of /etc/rc to the login prompt) went from 12 seconds with a static root to 15 seconds with a dynamic root. I have yet to perform a worldstone on it. The reason to do this is two-fold. One is to give better support for PAM and NSS in the base system. The second is to save some disk space. Currently (on my x86 box), /bin and /sbin are 32 MB. With a dynamically linked root (and some pruning of some binaries), the /bin, /lib, and /sbin come out to 6.1 MB. This should be great for people with 2.x and 3.x era root partitions that are only about 50 MB. My preliminary patches are at http://people.freebsd.org/~gordon/patches/dynamic.patch.small They are a bit rough, but I'm working on finishing up the work and integrating it after 5.1 is released. -gordon --/ke75lzkNdJ8e8mR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE+24cuRu2t9DV9ZfsRAiQfAKDDJ8wPIaBEGiACn+ZmuNYVMkrLYQCeOrPX 5aL7ZVISUxOKNmIeJ4qWCjM= =r6oJ -----END PGP SIGNATURE----- --/ke75lzkNdJ8e8mR--
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