Pour migrer en 9.10 il faut déja être en 9.04
tout le chemin est là (désolé c'est en anglais)
https://help.ubuntu.com/community/UpgradeNotes
ça risque d'etre un long chemin:
From 9.04 to 9.10
* Version 9.10 (Karmic Koala)
*
See the KarmicUpgrades page for upgrading information.
From 8.10 to 9.04
* Version 9.04 (Jaunty Jackalope)
*
See the JauntyUpgrades page for upgrading information.
From 8.04 LTS to 8.10
* Version: 8.10 (Intrepid Ibex)
*
See the IntrepidUpgrades page for upgrading information.
From 7.10 or 6.06 LTS to 8.04 LTS
* Version: 8.04 LTS (Hardy Heron)
*
See the HardyUpgrades page for upgrading information.
From 5.10 to 6.06 LTS
* Version: 6.06 LTS (Dapper Drake)
*
See the DapperUpgrades page for upgrading information.
