Re: fdisk BSD disklabel support?

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On Fri, Aug 7, 2015 at 12:54 PM, Karel Zak <kzak@xxxxxxxxxx> wrote:
> On Thu, Aug 06, 2015 at 07:34:40PM -0700, Matt Turner wrote:
>> I'm not able to figure out how to make a BSD disklabel in fdisk since v2.23.
>>
>> Gentoo's installation guide describes the process of partitioning a
>> disk for SRM/Alpha [1]. How should one do this now?
>>
>> With my distro's util-linux-2.25 I don't see any option that resembles
>> BSD disklabels -- I see only
>>
>>   Create a new label
>>    g   create a new empty GPT partition table
>>    G   create a new empty SGI (IRIX) partition table
>>    o   create a new empty DOS partition table
>>    s   create a new empty Sun partition table
>>
>> What am I missing?
>
>  You have to create a DOS (MBR) label first, and then there is
>
>    DOS (MBR)
>       a   toggle a bootable flag
>       b   edit nested BSD disklabel
>       c   toggle the dos compatibility flag
>
>
>  For example:
>
>  # fdisk /dev/sdc
>  ...
>  Command (m for help): n
>  Partition type
>     p   primary (0 primary, 0 extended, 4 free)
>     e   extended (container for logical partitions)
>  Select (default p): p
>  Partition number (1-4, default 1):
>  First sector (2048-1023999, default 2048):
>  Last sector, +sectors or +size{K,M,G,T,P} (2048-1023999, default 1023999):
>
>  Created a new partition 1 of type 'Linux' and of size 499 MiB.
>  ...
>  Command (m for help): t                           <----!!!
>  Partition type (type L to list all types): a5
>  Changed type of partition 'Linux' to 'FreeBSD'.
>  ...
>  Command (m for help): b                           <----!!!
>  The device /dev/sdc1 does not contain BSD disklabel.
>
>  Do you want to create a BSD disklabel? [Y]es/[N]o: y
>  ...
>  Command (m for help): p
>  ...
>  Slice Start     End Sectors   Size Type     Fsize Bsize Cpg
>  c      2048 1023999 1021952   499M unused       0     0   0
>  d         0 1023059 1023060 499.6M unused       0     0   0
>
>
>   Karel
>
> --
>  Karel Zak  <kzak@xxxxxxxxxx>
>  http://karelzak.blogspot.com

Thanks for the reply.

We have a user reporting that this is not sufficient to make a
bootable disk layout for DEC Alpha/SRM. Please see
https://forums.gentoo.org/viewtopic-t-1025044.html

I take it that this is unexpected?

Thanks,
Matt
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