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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msunews!uwm.edu!vixen.cso.uiuc.edu!howland.reston.ans.net!news.sprintlink.net!news.cloud9.net!cloud9.net!tls From: tls@cloud9.net (Thor Lancelot Simon) Newsgroups: comp.os.386bsd.questions Subject: Re: Are FreeBSD 1.1.5.1 and 2.0 ufs filesystems compatible? Date: 4 Dec 1994 21:04:49 GMT Organization: Cloud 9 Internet + White Plains, New York USA Lines: 22 Message-ID: <3btau4$3sp@news.cloud9.net> References: <3blt5d$sui@shore.shore.net> <3bnkic$ktm@Mars.mcs.com> <1994Dec3.213917.1145@robkaos.ping.de> <3brt0v$ccv@pdq.coe.montana.edu> NNTP-Posting-Host: cloud9.net In article <3brt0v$ccv@pdq.coe.montana.edu>, Nate Williams <nate@bsd.coe.montana.edu> wrote: >In article <1994Dec3.213917.1145@robkaos.ping.de>, >Robert Schien <robsch@robkaos.ping.de> wrote: >>BTW, is it possible to mount a SVR4.0 ufs partitions from >>FreeBSD? Or vice versa? > >I'm not sure. You could try it and see what happens. If the SVR4 filesystems >are the same it should work, but I doubt they are the same. Actually, *if the disklabel format were the same*, even if you couldn't mount them (and you likely won't be able to mount them read-write without mangling them, if you can in fact mount them at all), you could probably read them with dump | restore -i. Unfortunately, there's a lot more variance in disklabel formats than in 4.2-derived UFSen. But writing a foreign-disklabel reader isn't so hard; take a look at disksubr.c from the NetBSD pmax or sparc ports to see an example. -- Thor Lancelot Simon tls@cloud9.net "Nothing is true. Everything is permitted." -- Hasan ibn Sabah "Bus error (core dumped)" -- SunOS