I have a brand new PC running FC3. I have 4 kernel installed:
2.6.9-1.667 2.6.9-1.667smp 2.6.11-1.27 2.6.11-1.27smp
Before upgrading which (and how many) kernel shall I have to remove???
Make sure you're running with either the 2.6.11-1.27 or 2.6.11-1.27smp kernel:
$ uname -r
That will tell you which kernel you're using.
Then remove the old ones:
# rpm -e kernel-2.6.9-1.667 kernel-smp-2.6.9-1.667
That'll leave you with one uniprocessor and one SMP kernel, which should be OK. You might also want to remove openoffice.org if you've not got around 2GB of free space in /usr
# yum remove openoffice.org
You can add the new FC4 openoffice.org packages in post-installation:
# yum install openoffice.org-writer openoffice.org-calc
etc.
Paul.