8 partitions maximum
Paul B Mahol
onemda at gmail.com
Tue Nov 30 21:49:38 UTC 2010
On 11/30/10, David DEMELIER <demelier.david at gmail.com> wrote:
> 2010/11/30 Patrick Lamaiziere <patfbsd at davenulle.org>:
>> Le Tue, 30 Nov 2010 21:45:03 +0100,
>> David Demelier <demelier.david at gmail.com> a ecrit :
>>> 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
>>> 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
>> 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.
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> 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
> 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.
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