libgcj-java-placeholder.sh

GCJ installs itself in the alternatives system. Here is an RPM that addds Sun's Java to the alternatives system. http://forum.java.sun.com/thread.jspa?threadID=571177&messageID=2827642 is discussion about the issue. Once you install sunjavafix-ub-1-ub3.noarch.rpm , you can do alternatives --config java to switch back to GCJ as the default, if you need to.

3. It moved /etc/named.conf to /etc/named.conf.rpmsave and trashed my DNS.

I upgraded from Redhat 9 (RH9) to Fedora Core 3 (FC3) and encountered the following problems: 1. I had to uninstalle imap and install dovecot by hand and edit the /etc/dovecot.conf "default_mail_env = mbox=%h/Mail/:INBOX=/var/spool/mail/%u" because it assumes if the directory is called Mail/ it's mailir and if it's mail/ it's mbox. 2. Firefox failed to start, silently. I removed /usr/lib/mozilla/plugins/* and restarted and it worked.