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Date:      Sun, 25 Nov 2012 14:34:04 -0700 (MST)
From:      Warren Block <wblock@wonkity.com>
To:        Ralf Mardorf <ralf.mardorf@rocketmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: How to create a partition for FreeBSD 9.0?
Message-ID:  <alpine.BSF.2.00.1211251421160.23965@wonkity.com>
In-Reply-To: <1353877782.2508.225.camel@q>
References:  <1353795280.2662.12.camel@q> <20121124233520.7ad4b4be.freebsd@edvax.de> <1353798889.2662.46.camel@q> <20121125002717.11a61c8d.freebsd@edvax.de> <1353807268.2773.16.camel@q> <20121125131908.671f6d31.freebsd@edvax.de> <1353846552.2508.23.camel@q> <alpine.BSF.2.00.1211251322500.23965@wonkity.com> <1353877782.2508.225.camel@q>

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On Sun, 25 Nov 2012, Ralf Mardorf wrote:

> I can't backup the whole HDDs :(. I backup some data from HDD1 to HDD2
> and te other data from HDD2 to HDD1.
>
> On Sun, 2012-11-25 at 13:43 -0700, Warren Block wrote:
>> Assuming the first slice has been deleted.
>
> Correct.
>
>> # gpart add -t freebsd -i1 ada0
>>
>> Create a FreeBSD disklabel/bsdlabel partitioning scheme inside the
>> FreeBSD slice:
>>
>> # gpart create -s bsd da0s1
>>
>> Create FreeBSD partitions.  Sizes may be adjusted, but these will work.
>>
>> # gpart add -t freebsd-ufs  -a 4k -s 2g   da0s1
>> # gpart add -t freebsd-swap -a 4k -s 512m da0s1
>> # gpart add -t freebsd-ufs  -a 4k -s 1g   da0s1
>> # gpart add -t freebsd-ufs  -a 4k -s 256m da0s1
>> # gpart add -t freebsd-ufs  -a 4k         da0s1
>>
>> After you have done all this, you can go back and use the Partition
>> selection in bsdinstall to enter types and mountpoints for each.  Or you
>> can newfs each and then mount them, setting the location in
>> BSDINSTALL_CHROOT.
>
> I would prefer to continue with the installer.
>
> However, I guess for my needs just / is needed, so I guess
>
> # gpart add -t freebsd-swap -a 4k -s 512m da0s1
> # gpart add -t freebsd-ufs  -a 4k         da0s1

I think we just found in another thread that the UFS partition must be 
first, but it will have to have a size stated.

> 512m (it doesn't matter to use m or M?) is enough swap? I've got 4GB
> RAM. On Linux I use 2 swaps each around 2GB, but they are not much used.

Use more if you like.  It will not hurt, and might be useful in some 
situations.  The "m" or "g" is not case-sensitive.

So the command above to allocate 40G for a filesystem and the rest to 
swap would be

# gpart add -t freebsd-ufs  -a 4k -s 40g da0s1
# gpart add -t freebsd-swap -a 4k -s     da0s1

Bootcode might also be needed on the FreeBSD slice, but I have not used 
grub, so don't know for sure.



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