----- Original Message -----
> From: Mark Allums <m...@allums.com>
> To: 'Bonno Bloksma' <b.blok...@tio.nl>; 'Patrick Bartek'
> <bartek...@yahoo.com>; debian-user@lists.debian.org
> Cc:
> Sent: Thursday, January 3, 2013 4:39 AM
> Subject: RE: Wheezy Installer Auto-Partition Oddity
>
>> From: Bonno Bloksma [mailto:b.blok...@tio.nl]
>> To: Patrick Bartek; debian-user@lists.debian.org
>> Hi Patrick,
>>
>> > In preparation of a clean install of Wheezy, I did a test install in
> VirtualBox
>> 3.1.8 running under Fedora 12 64-bit.
>> > To save time, I used the installer's default partitioning scheme.
> Normally I
>> custom partition.
>> > Anyway, I noticed an oddity: There are gaps between the
>> partitions. Sizable ones.
>> > Plus, sda1 starts at 2048, not 1. I don't know if this is due to
> the
> installer
>> partitioner or a quirk in VirtualBox.
>> > I noticed this on a VB install of Debian 6, too, on the same
>> system. Anybody got any ideas on the why? Wasn't able to find
> anything
>> applicable on net searches.
>>
>> The only reason I can think about is the new requirement for partitioning
>> on 4k boundaries due to new harddrive specs. Harddrives used to be broken
>> up in 512b blocks, they are now chopped up in 4k blocks. I read a good
>> article the other day explaining the performance hits if the OS does not
>> properly allign the partition boundaries to the new 'Advanced
> Format' 4k
>> boundaries. Unfortunately that was in a paper magazine so I cannot refer
> to
>> it here. But have a look at
>> http://www.tomshardware.com/reviews/advanced-format-4k-sector-size-
>> hard-drive,2759.html and look in Wikipedia for more info.
>>
>> Bonno Bloksma
>
>
> If you are using LVM, you need to leave 1MB before and after the partition
> for metadata. Some of the tools do this automatically for you. If you
> don't like it, you can manually adjust the start and end yourself.
I'm not, but I think the Wheezy partitioner thinks I may in the future, so, is
setting things up for that possible future need.
B
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