Date: Thu, 26 Aug 2021 15:36:12 +0200 From: Javier <nixlist@outlook.es> To: freebsd-questions@freebsd.org Subject: Paritioning scheme on MBR disk doubts Message-ID: <MW4PR01MB640175FEDE09CAD451A9AA0BC4C79@MW4PR01MB6401.prod.exchangelabs.com>
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Hi, ok, finally, I'm going to dare to ask this (literally, after weeks, no hurry). I felt somehow dumb asking it as it looks quite obvious, but not asking it is a stone in my path before start fiddling with FreeBSD. (please, use monospace font where/if needed to view this mail correctly) I would like to know what is correct as the HandBook mainly talks about GPT today and I think it doesn't cover what I'm in doubt of, or I don't understand as is. Also have some disk basics in one section and others in another, doesn't help, when you haven't installed=20 and you haven reached that section yet. Let me ask in schematic way :) (Questions in the middle) Note: my original idea was to post this on the forum but formatting capabilities... didn't help. Anyway..., sorry the verbosity. I guess we all agree (terminology correctness aside) with the following two examples: -------------- 1) DOS|GNU/Linux MBR +---Primary/Extended* 1 +---Primary/Extended* 2 +---Primary/Extended* 3 +---Primary/Extended* 4 (if Extended) +---Logic 1 +---Logic 2 +---. +---. +---. +---Logic nth -------------- 2) DOS|GNU/Linux + FreeBSD MBR +---Primary/Extended* 1 +---Primary/Extended* 2 +---Primary/Extended* 3 =A6 (if Extended) =A6 +---Logic 1 =A6 +---Logic 2 =A6 +---. =A6 +---. =A6 +---. =A6 +---Logic nth +---FreeBSD 4 (Slice) +---Partition 1 +---Partition 2 +---Partition 3 +---. +---. +---Partition (h/eight/8?) ****** Being the FreeBSD slice on any position of the 4 MBR possible options. Just placed 4th for simplicity in the scheme -------------- Ok, now the third example, where I mixed cases, so some questions in one. Can a whole FreeBSD installation (mountpoints) be spread along multiple slices? Can I have more than h/eight/8 partitions when using more than one slice? If no, why this small limit? Can mountpoints be outside of slices? Specially or specifically, /boot. Can it be on a FAT/32 or ext/2/3/4 file system outside the slices? I understand any other should be inside the FreeBSD slices only. And when I say slices, I don't mean only on one disk, but several too. Might be a dumb question, but better ask to be sure. What is correct and what isn't. -------------- 3) DOS|GNU/Linux + FreeBSD (hypothetical case) MBR +---Primary/Extended* 1 /Boot +---FreeBSD 2 (Slice) =A6 +---Partition 1 /etc =A6 +---Partition 2 /home =A6 +---Partition 3 =A6 +---. =A6 +---. =A6 +---Partition (h/eight/8?) +---Primary/Extended* 3 =A6 (*if Extended and only one) =A6 +---Logic 1 =A6 +---Logic 2 =A6 +---. =A6 +---. =A6 +---. =A6 +---Logic nth +---FreeBSD 4 (Slice) +---Partition 1 / +---Partition 2 +---Partition 3 +---. +---. +---Partition (h/eight/8?) /swap -------------- Despite I ask for MBR scheme, that is my BIOS/Disk system, I guess answers should be applicable to GPT, more or less, with its differences. Thanks, in advance, if I don't reply back, for your answers. Regards.
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