Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 1 Dec 2010 10:27:46 +0100
From:      David DEMELIER <demelier.david@gmail.com>
To:        Paul B Mahol <onemda@gmail.com>
Cc:        Patrick Lamaiziere <patfbsd@davenulle.org>, freebsd-questions@freebsd.org
Subject:   Re: 8 partitions maximum
Message-ID:  <AANLkTim7aC4P1q34saSC9_G-LLWa=q1nnxb%2Bu-7bFs%2BY@mail.gmail.com>
In-Reply-To: <AANLkTikPwubp98MfUcaRSx2NOvm8Nmrg1HMaA0Kw-kCz@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> <AANLkTikUu0ajKwOsN5t-SzTK1ZOCLDEbXfsT8w5BTnF5@mail.gmail.com> <4CF5F5F8.9070408@gmail.com> <AANLkTikPwubp98MfUcaRSx2NOvm8Nmrg1HMaA0Kw-kCz@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
2010/12/1 Paul B Mahol <onemda@gmail.com>:
> 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> =C2=A0wrote:
>>>> 2010/11/30 Paul B Mahol<onemda@gmail.com>:
>>>>> On 11/30/10, David DEMELIER<demelier.david@gmail.com> =C2=A0wrote:
>>>>>> 2010/11/30 Patrick Lamaiziere<patfbsd@davenulle.org>:
>>>>>>> Le Tue, 30 Nov 2010 21:45:03 +0100,
>>>>>>> David Demelier<demelier.david@gmail.com> =C2=A0a 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:
>>>>>> # =C2=A0 =C2=A0 =C2=A0 =C2=A0size =C2=A0 offset =C2=A0 =C2=A0fstype =
=C2=A0 [fsize bsize bps/cpg]
>>>>>> =C2=A0 =C2=A0a: =C2=A010m =C2=A0 =C2=A0 =C2=A0 16 =C2=A0 =C2=A04.2BS=
D =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0b: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0d: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0e: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0f: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0g: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0h: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0i: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0j: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>> =C2=A0 =C2=A0k: =C2=A010m =C2=A0 =C2=A0 =C2=A0 * =C2=A0 =C2=A04.2BSD=
 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0
>>>>>>
>>>>>> =C2=A0 =C2=A0c: =C2=A02047973 =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =
=C2=A0unused =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 =C2=A0 0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 # "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=3D/dev/zero of=3Dmyfile.img bs=3D1m count=
=3D100
>>>> 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.
>

Yes I saw that it was only 20 max, so how to get 26 partitions using
bsdlabel ? :-)

Cheers,

--=20
Demelier David



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?AANLkTim7aC4P1q34saSC9_G-LLWa=q1nnxb%2Bu-7bFs%2BY>