Date: Mon, 10 Nov 2008 11:45:54 +0000 (UTC) From: Vadim Goncharov <vadim_nuclight@mail.ru> To: freebsd-geom@freebsd.org Subject: Re: Experiences with Gpart Message-ID: <slrnghg7ni.omk.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> <0A1A5002-A643-4738-B775-5E450C02486A@mac.com>
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Hi Marcel Moolenaar! On Wed, 05 Nov 2008 09:39:43 -0800; 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. Unix always had at least knob allow_me_to_shoot_in_the_foot, if now allowed this directly. So what alternative do you propose to group partitions together or to split GPT partitions? bsdlabel? But that is limited to 26 partitions and 2^32 sectors. -- WBR, Vadim Goncharov. ICQ#166852181 mailto:vadim_nuclight@mail.ru [Moderator of RU.ANTI-ECOLOGY][FreeBSD][http://antigreen.org][LJ:/nuclight]
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