Date: Sun, 30 Aug 2020 17:14:45 +0200 From: Polytropon <freebsd@edvax.de> To: "Thomas Mueller" <mueller6722@twc.com> Cc: freebsd-questions@freebsd.org Subject: Re: (very OT) Ideal partition schemes (history of partitioning) Message-ID: <20200830171445.cc63924f.freebsd@edvax.de> In-Reply-To: <202008301509.07UF9Q7N001905@r56.edvax.de> References: <CAGBxaXkf53K4EHtq9cDaRm3MOZZixyBq-aQfZ7upHo-wUwrmCg@mail.gmail.com> <20200829154417.8dd5f83d.freebsd@edvax.de> <202008301509.07UF9Q7N001905@r56.edvax.de>
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On Sun, 30 Aug 2020 05:33:21 +0000, Thomas Mueller wrote: > from Polytropon (excerpt): > > > Most multi-OS settings seem to work best with BIOS + MBR. > > Boot selection can either happen using a PF key at system > > startup, if it's more than one disk, or you have a separate > > software solution, like GRUB or FreeBSD's boot manager, if > > all systems are on one and the same disk. > > How is that? It seems to me that GPT would be practically the > only way for multi-OS. > Grub 2 can be used to select the partition to boot. Correct. > Some or many OSes can not run on a logical partition, only > a primary partition, using MBR scheme. That is a restriction that, if I remember correctly, does not apply to Linux. > And what if hard disk > 2 TB, or would that be 16 TB in the > case of 4096-byte sectors? Yes, that is definitely a special case (which will become the common case in the future). > > Within a slide*, you can create multiple partitions. The > > common approach today is to have one big / and some swap. > > The idea of "functional partitioning" typically suggests > > a layout like this: > > slide? Did you mean slice? Good catch - that was a typical "'d' next to 'c' typo". :-) > I run several versions of FreeBSD and NetBSD, also need to save > partitions for Linux and Haiku. > > FreeBSD and NetBSD can't read each other's disklabel or > bsdlabel-type subpartitions, and sub-partitioning a NetBSD slice > with disklabel is very tricky, drives me crazy. > > GPT means I never have to deal with traditional BSD disklabels > any more; I don't run OpenBSD or DragonFlyBSD. Regarding configuration and number of partitions, GPT is surely much more convenient than MBR. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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