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Date:      Sun, 21 Jan 2018 13:58:31 +0100
From:      Marek Krawczyk <marek@mky.waw.pl>
To:        Christos Chatzaras <chris@cretaforce.gr>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: gpart and differences in FreeBSD 10 and 11
Message-ID:  <d849ebb329ce04fda3c97034be45d4e5@mky.waw.pl>
In-Reply-To: <DC3EAED5-CCB6-4CF1-906D-EC8B19DDF7BC@cretaforce.gr>
References:  <DC3EAED5-CCB6-4CF1-906D-EC8B19DDF7BC@cretaforce.gr>

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W dniu 2018-01-21 10:37, Christos Chatzaras napisaƂ(a):
> The first disk created with gpart on FreeBSD 11 and the second with
> gpart on FreeBSD 10.
> 
> gpart show
> =>        40  7814037088  ada0  GPT  (3.6T)
>           40          88        - free -  (44K)
>          128         128     1  freebsd-boot  (64K)
>          256     8388608     2  freebsd-ufs  (4.0G)
>      8388864   134217728     3  freebsd-swap  (64G)
>    142606592    33554432     4  freebsd-ufs  (16G)
>    176161024   134217728     5  freebsd-ufs  (64G)
>    310378752    33554432     6  freebsd-ufs  (16G)
>    343933184  7470103944     7  freebsd-ufs  (3.5T)
> 
> =>        34  7814037101  ada1  GPT  (3.6T)
>           34          94        - free -  (47K)
>          128         128     1  freebsd-boot  (64K)
>          256     8388608     2  freebsd-ufs  (4.0G)
>      8388864   134217728     3  freebsd-swap  (64G)
>    142606592    33554432     4  freebsd-ufs  (16G)
>    176161024   134217728     5  freebsd-ufs  (64G)
>    310378752    33554432     6  freebsd-ufs  (16G)
>    343933184  7470103944     7  freebsd-ufs  (3.5T)
>   7814037128           7        - free -  (3.5K)
> 
> Any idea why it shows as first sector 40 in first case and 34 in second 
> case?

First partition scheme (from ada0) looks like auto aligned for 4K 
sectors on the disk. Probably gpart from FreeBSD 11 mind the sector size 
when creating partitions.

Regards,
Marek Krawczyk



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