Comment 52 for bug 186465

I'm having the exact same problem...

It doesn't matter how I start the upgrade (through the update-manager or using the cdromupgrade), the upgrade process freezes at the "Preparing to Upgrade" step.

I then tried using different "frontends" (DistUpgradeViewKDE and DistUpgradeViewText) and they both seem to work but I don't want to use them because as James said (on the previous post) this starts downloading the packages from the Internet and since I already have the alternate CD I'd rather find a solution and be able to simply insert the CD and perform the upgrade.

So... does anyone knowns a solution/workaround for this issue?