Date: Wed, 1 Dec 2010 08:37:42 +0000 From: Paul B Mahol <onemda@gmail.com> To: David Demelier <demelier.david@gmail.com> Cc: Patrick Lamaiziere <patfbsd@davenulle.org>, freebsd-questions@freebsd.org Subject: Re: 8 partitions maximum Message-ID: <AANLkTikPwubp98MfUcaRSx2NOvm8Nmrg1HMaA0Kw-kCz@mail.gmail.com> In-Reply-To: <4CF5F5F8.9070408@gmail.com> References: <4CF5624F.4020901@gmail.com> <20101130221550.2cf6d726@davenulle.org> <AANLkTikrWwS%2B08ERB5xHRLb3gXj6=Y_GdVTNGVvx__=T@mail.gmail.com> <AANLkTikdNwNZ=vMi6jp-9o2OcXQaeAT6f6RNVmYF8T=C@mail.gmail.com> <AANLkTikZg=X0Mo0RyN599T4-Se0TEUz8uvZ0cxzd3RBW@mail.gmail.com> <AANLkTikUu0ajKwOsN5t-SzTK1ZOCLDEbXfsT8w5BTnF5@mail.gmail.com> <4CF5F5F8.9070408@gmail.com>
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On 12/1/10, David Demelier <demelier.david@gmail.com> wrote: > On 30/11/2010 23:29, Paul B Mahol wrote: >> On 11/30/10, David DEMELIER<demelier.david@gmail.com> wrote: >>> 2010/11/30 Paul B Mahol<onemda@gmail.com>: >>>> On 11/30/10, David DEMELIER<demelier.david@gmail.com> wrote: >>>>> 2010/11/30 Patrick Lamaiziere<patfbsd@davenulle.org>: >>>>>> Le Tue, 30 Nov 2010 21:45:03 +0100, >>>>>> David Demelier<demelier.david@gmail.com> a ecrit : >>>>>> >>>>>>> Hello, >>>>>> Hello, >>>>>> >>>>>>> We all know that we can only have 8 ufs partitions in one freebsd >>>>>>> slice. Since OpenBSD and NetBSD can support at most 32 partitions >>>>>>> iirc. >>>>>>> >>>>>>> I wonder why FreeBSD still lacks more ufs partitions in one slice? >>>>>>> >>>>>>> Is there any plan to grow up max partitions or every work is >>>>>>> dedicated to ZFS? >>>>>> hmmm, isn't already done in 8.X ? >>>>>> from what's cooking for FreeBSD 8.0 >>>>>> http://ivoras.sharanet.org/freebsd/freebsd8.html >>>>>> << >>>>>> bsdlabel gets extended to 26 partitions >>>>>> >>>>>> Status: Committed to -CURRENT >>>>>> Will appear in 8.0: sure >>>>>> Author: Marcel Moolenaar >>>>>> Web: commit message >>>>>> >>>>>> bsdlabel is (finally!) extended to support more than 8 partitions. The >>>>>> new limit of 26 partitions comes from the number of lower-case >>>>>> letters. >>>>>> >>>>>> To make use of this change, GEOM_PART needs to be used instead of >>>>>> GEOM_BSD (this is default in 8.0 but will not work with older >>>>>> kernels). >>>>> I don't have GEOM_PART in my kernel, but if you said it's default it >>>>> should be pulled in. >>>>> >>>>>> Regards. >>>>>> _______________________________________________ >>>>>> freebsd-questions@freebsd.org mailing list >>>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >>>>>> To unsubscribe, send any mail to >>>>>> "freebsd-questions-unsubscribe@freebsd.org" >>>>>> >>>>> But why : >>>>> >>>>> # /dev/md2s1: >>>>> 8 partitions: >>>>> # size offset fstype [fsize bsize bps/cpg] >>>>> a: 10m 16 4.2BSD 0 0 >>>>> b: 10m * 4.2BSD 0 0 >>>>> d: 10m * 4.2BSD 0 0 >>>>> e: 10m * 4.2BSD 0 0 >>>>> f: 10m * 4.2BSD 0 0 >>>>> g: 10m * 4.2BSD 0 0 >>>>> h: 10m * 4.2BSD 0 0 >>>>> i: 10m * 4.2BSD 0 0 >>>>> j: 10m * 4.2BSD 0 0 >>>>> k: 10m * 4.2BSD 0 0 >>>>> >>>>> c: 2047973 0 unused 0 0 # "raw" part, >>>>> don't >>>>> edit >>>>> >>>>> line 11: partition name out of range a-h: i >>>>> line 12: partition name out of range a-h: j >>>>> line 13: partition name out of range a-h: k >>>>> re-edit the label? [y]: >>>>> >>>>> I'm on 8.1-RELEASE. >>>> To make use of such feature you need to recreate table with gpart(8). >>>> >>>> bsdlabel is not going to work. >>>> >>> markand@Melon ~ $ sudo dd if=/dev/zero of=myfile.img bs=1m count=100 >>> 100+0 records in >>> 100+0 records out >>> 104857600 bytes transferred in 2.095537 secs (50038530 bytes/sec) >>> markand@Melon ~ $ sudo mdconfig -a -f myfile.img -u 2 >>> markand@Melon ~ $ sudo gpart create -s MBR md2 >>> md2 created >>> markand@Melon ~ $ sudo gpart show md2s1 >>> gpart: No such geom: md2s1. >>> markand@Melon ~ $ sudo gpart add -t freebsd md2 >>> md2s1 added >>> markand@Melon ~ $ sudo gpart add -t freebsd-ufs md2s1 >>> gpart: No such geom: md2s1. >>> markand@Melon ~ $ sudo gpart create -s BSD md2s1 >> gpart create -s BSD -n 26 md2s1 > > markand@Melon ~ $ sudo gpart create -s BSD -n 26 md0s1 > gpart: entries '26': Invalid argument > markand@Melon ~ $ sudo gpart create -s BSD -n 8 md0s1 > md0s1 created > Looks like max number is 20, up to md2s1t.
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