Date: Tue, 30 Nov 2010 22:29:04 +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: <AANLkTikUu0ajKwOsN5t-SzTK1ZOCLDEbXfsT8w5BTnF5@mail.gmail.com> In-Reply-To: <AANLkTikZg=X0Mo0RyN599T4-Se0TEUz8uvZ0cxzd3RBW@mail.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>
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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
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