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Date: Sat, 12 Jan 2013 09:56:39 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Erich Dollansky <erichsfreebsdlist@alogt.com>
Subject: Re: gpart, glabel and newfs --> what am I doing wrong
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On Sat, 12 Jan 2013, Erich Dollansky wrote:

> in general, I try to create the partitions with gpart, add a label with
> glabel and put a filesystem. I think that I am doing something very
> simple the wrong way but I cannot see the error.
>
> I try to do it in the following way:
>
> # gpart destroy -F da0
> # gpart create -s GPT da0
> # gpart add -t freebsd-boot -s 64k da0
> # gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 da0
> # gpart add -t freebsd-ufs -s 512m -a 4k -l Toshiba16GB2boot da0
> # gpart add -t freebsd-ufs -s 10m -a 4k -l Toshiba16GB2root da0
> # gpart add -t freebsd-swap -s 10m -a 4k -l Toshiba16GB2swap da0
> # gpart add -t freebsd-ufs -s 10m -a 4k -l Toshiba16GB2var da0
> # gpart add -t freebsd-ufs -s 10m -a 4k -l Toshiba16GB2tmp da0
> # gpart add -t freebsd-ufs -a 4k -l Toshiba16GB2usr da0
>
> Label the partitions:
>
> # glabel label Toshiba16GB2boot /dev/da0p2
> # glabel label Toshiba16GB2root /dev/da0p3
> # glabel label Toshiba16GB2swap /dev/da0p4
> # glabel label Toshiba16GB2var /dev/da0p5
> # glabel label Toshiba16GB2tmp /dev/da0p6
> # glabel label Toshiba16GB2usr /dev/da0p7

There is no need for all this.  You already created GPT labels with
'gpt -l' above.  And those labels don't need extra metadata at the end 
of the partition.

> And put a file system onto the partitions.
>
> # newfs /dev/label/Toshiba16GB2boo
> # newfs /dev/label/Toshiba16GB2roo
> # newfs /dev/label/Toshiba16GB2var
> # newfs /dev/label/Toshiba16GB2tmp
> # newfs /dev/label/Toshiba16GB2usr

Those look cut off.  And there's surely a limit to the length of label 
names, but I'm not sure what it is.  Anyway, use

   # newfs /dev/gpt/Toshiba16GB2boot

And consider using -U with newfs.