Can't upgrade to os883 official from XO 1.75

[Lionel Laské]

> From a USB key, I assume you got the .usb file, and you're following the
usual procedure?

Yes using
http://wiki.laptop.org/go/Release_notes/11.3.0#Simple_Offline_Update 


> Argh. Seems that your version is a bit too early. Maybe you can yum update
the bitffrost package and the olpc-update package, and then try again...

Olpc-update seems to be up to date. 
Updating bitfrost update it to "1.0.8-1.fc13" but it didn't work neither. 
FYI Sugar version was "0.88.0" build "19 customized"

BTW I finally reflash completely the XO
(http://wiki.laptop.org/go/Release_notes/11.3.0#XO-1.75) following Gonzalo
advice and it finally works.

To be honest my first attempt failed because I didn't see that XO 1.5 image
(that I had already downloaded) was different from the XO 1.75 image :-(

Thanks Martin and Gonzalo for your help.

	Lionel.