Re: Why are so many packages removed for the upgrade??
If you have no really compelling reasons to upgrade at this point I would suggest that you wait until the "enterprise" release of 8.04.1 due out in June when many of these issues will be cleared up. Or work-arounds known.
There could be many reasons for the removal of those packages, Most likely they are not compatable with hardy as yet, dependency issues with hardy packages, depeciation of packages that these programs use and such... Many 3rd party packages do not upgrade gracefully.
My philosophy is... if it's fixed don't break it...
If you depend on your machine for work and everyday tasks, I would wait until these things are fixed, or you have researched the reasons why and what you have to do to solve these issues.
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Fall in the Sea,