Installing bootable OS on an encrypted SD?

[messus]

I am new to linux, but the idea of a Linux OS I can boot from an SD card seems very convenient for my work. I understand that is possible according to this article:

pandorawiki.org/Running_Linux_from_an_SD_card

And this one, too:

linuxgeekoid.wordpress.com/2011/07/12/successfully-booting-and-installing-linux-from-a-flash-or-sd-card/

But what I want to do is have is full disk encryption on the SD card because it will be accessing banking details and sensitive financial data. I found this, concerning a similar setup on a USB card:

superuser.com/questions/87919/how-can-i-create-an-encrypted-bootable-thumbdrive-containing-linux

Is there any difference I should know about with the installation of more recent linux offerings?

I'm assuming it would be similar to this tutorial, except I want it on an SD card, not a hdd:

linuxbsdos.com/2011/05/10/how-to-install-ubuntu-11-04-on-an-encrypted-lvm-file-system/

[Rubberman]

I am new to linux, but the idea of a Linux OS I can boot from an SD card seems very convenient for my work. I understand that is possible according to this article:

pandorawiki.org/Running_Linux_from_an_SD_card

And this one, too:

linuxgeekoid.wordpress.com/2011/07/12/successfully-booting-and-installing-linux-from-a-flash-or-sd-card/

But what I want to do is have is full disk encryption on the SD card because it will be accessing banking details and sensitive financial data. I found this, concerning a similar setup on a USB card:

superuser.com/questions/87919/how-can-i-create-an-encrypted-bootable-thumbdrive-containing-linux

Is there any difference I should know about with the installation of more recent linux offerings?

I'm assuming it would be similar to this tutorial, except I want it on an SD card, not a hdd:

linuxbsdos.com/2011/05/10/how-to-install-ubuntu-11-04-on-an-encrypted-lvm-file-system/

It should be the same process/procedure to create an encrypted bootable SD card as it is a hard drive. I haven't tried, but at worst it won't work and you will have to wipe the SD card and start over.