Installing into own partition schema for SSD?

2011-05-17 Thread Kai Weber
Hi,

I am new owner of an Intel SSD. After reading about the need to properly align
the partitions, logical volumes and filesystems to the SSD's erase block size
I tried to follow these recommendations[1] and install Debian (6.0.1a) into an
prepared partition scheme.

My preferred setup is a 1GB /boot partition and the rest an dm-crypt encrypted
partition with lvm on top.

How can I tell the installer to use the prepared partitions?

Alternatively I want to know how to specify the align-payload option to
cryptsetup (--align-payload=2048).

Regards,
Kai

[1] Resources I use:

* 
http://ldn.linuxfoundation.org/blog-entry/aligning-filesystems-ssd%E2%80%99s-erase-block-size
* http://www.spinics.net/lists/dm-crypt/msg02421.html
* 
http://www.ocztechnologyforum.com/forum/showthread.php?54379-Linux-Tips-tweaks-and-alignment


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Re: Installing into own partition schema for SSD?

2011-05-17 Thread Andrei Popescu
On Ma, 17 mai 11, 11:04:33, Kai Weber wrote:
 Hi,
 
 I am new owner of an Intel SSD. After reading about the need to properly align
 the partitions, logical volumes and filesystems to the SSD's erase block size
 I tried to follow these recommendations[1] and install Debian (6.0.1a) into an
 prepared partition scheme.
 
 My preferred setup is a 1GB /boot partition and the rest an dm-crypt encrypted
 partition with lvm on top.
 
 How can I tell the installer to use the prepared partitions?

AFAIR it's a bit counterintuitive and I might have even opened a bug 
report about it. I think it involves selecting a filesystem and telling 
the installer to not format the partition or something like that...

Regards,
Andrei
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Re: Installing into own partition schema for SSD?

2011-05-17 Thread Kai Weber
* Andrei Popescu andreimpope...@gmail.com:

  How can I tell the installer to use the prepared partitions?
 
 AFAIR it's a bit counterintuitive and I might have even opened a bug 
 report about it. I think it involves selecting a filesystem and telling 
 the installer to not format the partition or something like that...

This works at filesystem level (ext4, xfs) but not on dm-crypt. At least
I haven't got it working.

Thanks for your answer nevertheless.

Kai


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