Date: Mon, 17 Dec 2001 07:29:04 +1100 From: Peter Jeremy <peter.jeremy@alcatel.com.au> To: wkt@tuhs.org Cc: Greg Lehey <grog@FreeBSD.org>, Terry Lambert <tlambert2@mindspring.com>, freebsd-hackers@FreeBSD.org Subject: Re: Caldera and the Ancient UNIX license Message-ID: <20011217072904.P73243@gsmx07.alcatel.com.au> In-Reply-To: <200112160618.fBG6IcK23973@minnie.tuhs.org>; from wkt@minnie.tuhs.org on Sun, Dec 16, 2001 at 05:18:37PM %2B1100 References: <20011216115556.A62493@monorchid.lemis.com> <200112160618.fBG6IcK23973@minnie.tuhs.org>
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On 2001-Dec-16 17:18:37 +1100, Warren Toomey <wkt@minnie.tuhs.org> wrote: >Firstly, call me crazy, but I thought the 2BSD filesystem layout was >essentially UFS, i.e i-nodes at the start, and therefore would be >pretty much the same as /sys/ufs/ufs in FreeBSD. I'll have to do a >compare of the source code and get back to you .... I'm specifically looking at 2.11BSD - which is architecturally UFS but various sizes and constants are different (eg fewer direct/indirect blocks in the inode). In some ways this simplifies things (it may be possible to re-use much or all of the FreeBSD UFS code) but it also confuses things (eg having two different struct dinode's defined, and there will probably be be global variable/function name clashes). In any case, I'm more interested in how to go about porting a new FS into FreeBSD, rather than having Terry actually do the port for me. The other almost-the-same UFS that could be useful is the Tru64 UFS. Last time I tried, I could mount a Tru64 UFS CD-ROM on FreeBSD, but the box would panic fairly quickly when I tried to access the FS (I didn't keep a close record and this was some time ago). Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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