Date: Tue, 20 Jun 2006 17:50:39 +0200 From: Rink Springer <rink@FreeBSD.org> To: Julian Stecklina <der_julian@web.de> Cc: freebsd-ppc@freebsd.org Subject: Re: On-disk format of UFS1, UFS2 for firmware Message-ID: <20060620155039.GA91963@rink.nu> In-Reply-To: <86ac87oprv.fsf@dellbeast.localnet> References: <00b001c69475$524fe510$99dfdfdf@bakuhatsu.net> <86ac87oprv.fsf@dellbeast.localnet>
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--nFreZHaLTZJo0R7j Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, > > I was wondering where the best place to ask was to find out any documen= tation > > on the on-disk format of UFS1 and UFS2 (barring the FreeBSD source tree= , I have > > that already). > > > > We want to implement it in firmware to ease booting FreeBSD and NetBSD = and so on > > for Pegasos/EFIKA/OSW and so on. The firmware already supports BSD disk= slices > > and "original" FFS so we have a basic framework to start from. > > > > Any hints appreciated. Is there a freebsd-filesystems list or so? There exists a filesystem list, freebsd-fs@freebsd.org. However, while developing the FreeBSD/xbox UFS patches, I had a great help from two sources: - Design and Implementation of the FreeBSD operating system [book] This book lists most fundemental details of UFS1 and 2, which is quite helpful in understanding how it works. - Boot source (/sys/boot/common/ufsread.c) This implementation is used by the boot code itself, and is quite clean and easy to understand. Good luck! Regards, --=20 Rink P.W. Springer - http://rink.nu "Richter: Tribute? You steal men's souls, and make them your slaves! Dracula: Perhaps the same could be said of all religions." - Castlevania: Symphony of the Night --nFreZHaLTZJo0R7j Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEmBlPb3O60uztv/8RAvVkAJ9nYyRSMCd7SDyW50kV9H6EEODlVwCeLINq WEkVV8wehJMWc1Bxfk486Ws= =KmRg -----END PGP SIGNATURE----- --nFreZHaLTZJo0R7j--
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