My Experience with upgrading from Ubuntu Karmic to Lucid
Ubuntu 10.04 Lucid Lynx was released today and I was very excited to try to upgrading from Karmic to Lucid through update-manager using the following command:
sudo update-manager -d
Fortunately, the download speed during the upgrading process was normal. The update-manager finished download the necessary files and start upgrading within 2 hours. However, the updates installation process is more time-consuming. I had to wait almost three hours in order to complete the upgrading process. After the upgrading was completed, I noticed that the Compiz Fusion effects were no longer working and my computer became slower than before the upgrade. I decided to download the ISO image and reinstalled Ubuntu Lucid.
I used this method to update my Ubuntu box before. I used on the netbook when it’s still in beta. The upgrade process was smooth. It took me almost as same time as this time. However, when I restarted the netbook, the boot process was broke possibly by upgrading to the latest version. This problem was solved also by downloading the beta version of Ubuntu Lucid at that time and reinstalled it onto the netbook.
Overall, you need to update Ubuntu by reinstalling rather than upgrading in order to have a clean OS. I used UNetBootIn which is available in the Karmic’s repository to create an USB installer disk to install Lucid rather than burn onto the CD. Through this way I installed the newest version of Ubuntu within half an hour compare to the 5-hour upgrade process. I recommend to reinstalling Ubuntu for each new release in order to enjoy the benefits of new features in each release. Just remember to backup your /home directory to an USB drive or external hard drive before the reinstallation.
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