Thank for your answer. In fact i do have a full install...
In fact, i followed these steps :
Full hard drive installation
This is a conventional Linux installation.
Currently, installing the "devx" file in a full hard drive installation (as opposed to a "frugal" installation) is slightly more complicated, and you can't undo it. It involves some steps....
1. Click on the devx_xxx.sfs in a ROX-Filer window to mount it.
2. Open a terminal in the mounted directory.
3. # cp -a --remove-destination ./* /mnt/hda2/
4. # sync
5. Close the terminal.
6. Click on the devx_xxx.sfs file to unmount it
I can't get the /mnt/hda2 : What's the directory ? sfs position ? or harddrive where puppy is ?