Thanks everyone for your help, more information :
My wii was hacked with the latest modify43.zip from here, so my ios i think it's all okay.
My usbloader is rev60 - ios222 (i will try ios249).
My wiiflow is rev... eee... latest googlecode from 3-4 day... also ios222.
Notice, everything work fine with a lot of hd (the most common i use it's a seagate 1terra on a docking).
So i cloned my hd to a Seagate goflex 1 terra (for a friend), i plug it on my wii and i have some strange failure.
First off, most of time, Homebrew channel don't see it, just unplug/plug the power cord fix this (i know there is a patch for the apm function from seagate).
The fat32 partitions always work, all my applications are listed on homebrewchannel.
When i choose wiiflow, blackscreen displaying something like "loading please wait..." on the screen, my dvd drive start flashing like hells and nothing happen.
When i choose usbloader, All the games from the ntfs partition are visible, but if a choose a game for playing, my wii freeze.
So, i will put ios249 application instead of ios222 version. if nothing change, i will convert the ntfs to a fat32 partition, if nothing good again, wbfs partition.
Thanks you very much for your help!