Possible Duplicate:
Can I skip over releases?
I'm at a 11.04 and want to get to 12.10. update-manager only offers me 11.10. Do I have to do 3 separate upgrades to get to 12.10?
Possible Duplicate:
Can I skip over releases?
I'm at a 11.04 and want to get to 12.10. update-manager only offers me 11.10. Do I have to do 3 separate upgrades to get to 12.10?
It seems that it's possible, but warned against. For example, the user in my first link began to have issues.
From the Ubuntu Wiki:
To avoid damaging your running system, upgrading should only be done from one release to the next release (e.g. Ubuntu 9.04 to Ubuntu 9.10) or from one LTS release to the next (e.g. Ubuntu 6.06 LTS to Ubuntu 8.04 LTS). If you wish to 'skip' a version, you can backup your data and do a fresh installation, or progressively upgrade to each successive version. For example, to upgrade from Ubuntu 8.10 to Ubuntu 9.10, first upgrade to 9.04, then upgrade 9.04 to 9.10.
However, it does seem that LiveUSBs can upgrade multiple versions?
Discussed in: upgrade from 10.10 to 11.10