Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!mintaka!bloom-beacon!eru!hagbard!sunic!mcsun!inesc!unl!unl!jpc From: jpc@fct.unl.pt (Jose Pina Coelho) Newsgroups: comp.os.minix Subject: Re: (PC/AT) Minix hard disk partition ???'s Message-ID: Date: 23 Apr 91 18:25:46 GMT References: <1991Apr18.134014.46258@vaxb.acs.unt.edu> Sender: news@fct.unl.pt (USENET News System) Organization: Universidade Nova de Lisboa -- Lisbon, Portugal Lines: 45 In-Reply-To: lips@vaxb.acs.unt.edu's message of 18 Apr 91 13:34:14 GMT In article <1991Apr18.134014.46258@vaxb.acs.unt.edu> lips@vaxb.acs.unt.edu writes: > OK. Dumb question of the week. [glowing sign that reads 'NEW USER' > flashes on screen] Just lack of references, not dumb. > I've been playing with PC 1.5.10 for a little over a week now. > Is there a modification I can make somewhere to > get more than 4 partitions on a hard disk? > I'm running on a 12MHz 286 clone at the moment with two 20Meg hard > drives, and a 9meg DOS partition on the first hard drive. It's problematic. The changes in minix should be quite trivial. (OS itself)(change the position where it looks for the table and the number of entries on the table)(1022-16*np (Methinks)) (mkfs)(can't remember) (bootblock)(scan the np partitions for a boot one) (shoelace)(probably) However: All(maybe too strict ?) the OS's for the PC's are expecting a four entry table, if you start it at a lower position to accomodate np partitions, the first np-4 partitions would be ignored, and only the last four would be recognized by those OS's. So the first np-4 partitions would be used by minix ONLY. So far so good, but don't use the partition editors of other OS's, because the partitions they can't see would be considered as free sectors, and you would end up with steped-upon minix partitions. Which, as I suspect, wouldn't make you happy :-). PS: Send me the patches afterwards. -- Jose Pedro T. Pina Coelho | BITNET/Internet: jpc@fct.unl.pt Rua Jau N 1, 2 Dto | UUCP: ...!mcsun!unl!jpc 1300 Lisboa, PORTUGAL | Home phone: (+351) (1) 640767 - If all men were brothers, would you let one marry your sister ?