OpenELEC with a USB drive, and auto update

[alonsh4]

Probably a basic question, but my searches haven't yielded anything definitive.
I just got my pi a couple of weeks ago, and installed OpenELEC. I'm using a usb drive as storage, as I understand it performs faster this way. I used the instructions from the OpenELEC wiki:
http://wiki.openelec.tv/index.php?title ... ith_issues
Now, it's mentioned in the instructions that if I want to upgrade OpenELEC, I just need to download the new version and replace the relevant files on the SD card.
What about updating via the interface? I'm getting messages from the auto updater that there's a system update available. If I let it install the update, will it replace the relevant files and keep the SD card plus USB structure intact?

[Oakham]

http://wiki.openelec.tv/index.php?title ... g_OpenELEC

AFAIAA with auto-update the base files only are replaced, same as manual update !

[alonsh4]

Thanks! I'll give it a try and see how it goes.

[PorterDon]

Am I understanding the Wiki correctly? For a Raspi installation using SD and USB, as is mine, my SD may remain locked and future OpenELEC auto updates (by XBMC in particular) still take affect? Stored on the USB? Naah, can't be. But 3.2.4 was new on 11/27 and I don't recall an update since then, but 3.2.4 shows when I boot up.