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Bug#658352: 4k Advanced format

shirish शिर�ष <shirishag75@gmail.com> writes:

> at bottom :-
> On Thu, Feb 2, 2012 at 19:04, Thomas Schmitt <scdbackup@gmx.net> wrote:
>> Hi,
> <snipped>
> Getting a little sideways here :-
>> I am clueless enough to look into wikipedia about GUID Partition Table.
>> The is room for a "Protective MBR" of 512 bytes.
>> So somebody would need to teach me how to announce the range of the
>> ISO image and the range of the FAT partition in a GPT.
>> Further one would have to discuss with Vladimir Serbinenko at grub-devel
>> about the layout of the first 32 kB of the ISO image, where MBR, GPT,
>> and GRUB2 code have to reside side-by-side.
> I am curious to know how easy it is (or not) to have the newish
> Advanced format [1] support in Debian-installer [2], as well as the
> ext* filesystems [3]. I remember a story about it which came in
> osnews[4] long-time back (around 1.5 years +) but do not really know
> how relevant they are or not atm. I am asking as from what i read
> alongwith the above at the very least the perception is most of the
> changes being done are to take care of growth for the next 20 + years.
>  I also saw discussions on the linux kernel page [5] but that wiki
> page is not current with the linux 3.x kernels. I did however spot an
> article on lwn.net [6] .
> Sadly there is no wiki entry about 'Advanced Format' on the Debian
> wiki. It would be nice if somebody has some updated instructions for
> it somewhere.

I think that should plain just work right[tm].

I recently bought a 3TB disk with advanced format and parted correctly
detected 512 byte logical blocksize and 4096 byte physical blocksize
(that is the advanced format part) and defaulted to aligning the
partitions to 1MB.

And since DI uses libparted that should just work there too.

As for ext* filesystems you just have to make sure to use 4k block size
there, which is the default for large enough filesystems.


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