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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!yarrina.connect.com.au!warrane.connect.com.au!godzilla.zeta.org.au!not-for-mail From: bde@zeta.org.au (Bruce Evans) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Upgrading from 2.0R Date: 20 Jul 1995 22:55:07 +1000 Organization: Kralizec Dialup Unix Sydney - +61-2-837-1183, v.32bis v.42bis Lines: 26 Message-ID: <3uljnb$pv7@godzilla.zeta.org.au> References: <3udhte$m29@buffnet2.buffnet.net> <3ue8es$i9@agate.berkeley.edu> <DBwtuy.9Ep@cogsci.ed.ac.uk> NNTP-Posting-Host: godzilla.zeta.org.au In article <DBwtuy.9Ep@cogsci.ed.ac.uk>, Richard Tobin <richard@cogsci.ed.ac.uk> wrote: >In article <3ue8es$i9@agate.berkeley.edu> jkh@violet.berkeley.edu (Jordan K. Hubbard) writes: >>>I never got a response to the question of how one can upgrade from 2.0R >>>to 2.0.5R without trashing everything. > >>>Does this mean it isnt doable? > >>No, it's not. At least not easily. You've got a new "slice" paradigm >>that really would like you to reinstall a new MBR ... > >Does this mean it's not possible to have 2.0 and 2.0.5 simultaneously >installed on the same machine (on different disks, but both able to >access each other's and MSDOS's files)? If so, this is a *major* Backwards compatibility is possible, but not supported by FreeBSD-2.0.5's install program or disklabel(8). You would have to run disklabel under 2.0 to create the bogus label required to access the MSDOS partition(s) and the whole disk under 2.0. Forwards compatibility is not possible if you use any of the new features 2.0.5 supports 30 slices, each of which can be divided into up to 8 BSD partitions, while 2.0 supports only 8 BSD partitions, some of which can be fudged to describe slices. -- Bruce Evans bde@zeta.org.au