Updating to Fedora 13 with preupgrade I faced some issues. The first one, which apparently is not documented, is that while downloading release info, I got an error message telling me that there was a problem with the mirror. running preupgrade in a terminal, I saw the following error: checksum failure downloading vmlinuz There was definitely a problem with the mirror. I tried several times getting the same error, so I decided to ask in #fedora-qa about it. And this is the fix: wget http://mirrors.fedoraproject.org/releases.txt edit releases.txt, comment mirrorlist and uncomment baseurl, setting the URL of the mirror that we choose, or leaving the default URL download.fedora.redhat.com. Then run preupgrade with releases.txt in our $PWD Another issue that I had[…]