Date: Fri, 29 Nov 2002 12:34:27 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Riccardo Torrini <riccardo@torrini.org>, <freebsd-current@FreeBSD.ORG> Subject: Re: Trivial patch: fdisk doesn't recognize my partitions Message-ID: <20021129122955.K15170-100000@gamplex.bde.org> In-Reply-To: <3475.1038522113@critter.freebsd.dk>
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On Thu, 28 Nov 2002, Poul-Henning Kamp wrote: > In message <XFMail.20021128230029.riccardo@torrini.org>, Riccardo Torrini write > s: > >I have 4 primary partitions and I use a boot manager (magic.com) > >that install some black magic that hide unused partition, this > >permit to have multiple 'other-OS' partition that don't know of > >each other (but, obviously, FreeBSD can see and mount all of them). > > > >As far as I know it use an EXOR 0x10 to hide/unhide but fdisk doesn't > >recognize 0x0B/0x0C fat32 when hidden (0x1B/0x1C) > > > >This is the patch, that can be extended easily to cover the range > >0x1A-0x1F (0x0A-0x0F when hidden). I simply copied strings from > >0x0B/0x0C and added Hidden in front of them :-) Any comment? > >(I don't know if 0x1B/0x1C are registered as used) > > I think this is very marginal use really... > > If we really wanted to support this convention, we should not add > (almost-duplicate) entries in the table, but rather on missing > an entry in the table, try again after xor'ing with the "hide-bit" > and see if we then get a hit. > > But as I said, this is rather marginal and I really don't feel > it should go in unless this xor-0x10 convention is more widespread. "Hiding" partitions is a bug IMO, so it should have negative support. This convention would break many OS's conventions. E.g., NextSTEP | 0x10 gives BSDI. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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