Date: Wed, 05 Nov 2008 09:39:43 -0800 From: Marcel Moolenaar <xcllnt@mac.com> To: vadim_nuclight@mail.ru Cc: freebsd-geom@freebsd.org Subject: Re: Experiences with Gpart Message-ID: <0A1A5002-A643-4738-B775-5E450C02486A@mac.com> In-Reply-To: <slrngh33m7.1o13.vadim_nuclight@server.filona.x88.info> References: <9e77bdb50810011331y7216eac3yf85907f96f5e8370@mail.gmail.com> <b649e5e0810191024s794445fdke8f2aac31a5617c@mail.gmail.com> <7353F23F-F944-47C9-A97D-6DE247F958AE@mac.com> <b649e5e0810191414i66c9d881x2314e66fec088f97@mail.gmail.com> <D7E43903-CD8D-4B83-92EF-A0BB1E2C155A@mac.com> <slrngh33m7.1o13.vadim_nuclight@server.filona.x88.info>
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On Nov 5, 2008, at 4:17 AM, Vadim Goncharov wrote: > Hi Marcel Moolenaar! > > On Sun, 19 Oct 2008 14:40:53 -0700; Marcel Moolenaar wrote about > 'Re: Experiences with Gpart': > >>>>>> Despite the intent of gpt's being to make such nesting >>>>>> unnecessary, as >>>>>> a means of defining the structure of gmirrors, which take up the >>>>>> entire extent of whatever encloses them, the nesting was very >>>>>> helpful. >>>>> >>>>> Maybe nesting simply works if you comment the first if in >>>>> g_part_gpt_probe() in >>>>> sys/geom/part/g_part_gpt.c ? I don't get why this is restricted, >>>>> should be >>>>> my >>>>> decision to nest or not imo. >>>> >>>> Nesting is not allowed as per the GPT specification. >>> >>> OK. It doesn't make much sense for slices too, but is still allowed. >> A nested MBR provides for backward compatibility by >> presenting a GPT partition as a drive to those legacy >> OSes or tools. I don't think it was needed, but it >> was envisioned that way, AFAICT. It makes sense in a >> weird way. > > But, allowing for configuring partitioning as user wants (and > complex nesting, > if one wish) was always strong benefit of the GEOM. So why not? It > is allowed > author of this thread to manage mirrors the way he wants, not the > way somebody > enforces. Unix is tools, not policy (c) Gratuitous non-compliance in the name of freedom is not the Unix-way of things. -- Marcel Moolenaar xcllnt@mac.com
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