So I upgraded my Fedora 14 workstation to Fedora 15 last night using the yum update method (I’ve used preupgrade a few times and it’s worked on some and botched on others (mostly due to not enough space on /boot)). Since with other distros I’ve either used apt to do a dist-ugprade or the urpmi equivalent, this is somewhat my preferred upgrade path. I’ve done it before and it worked amazingly well, so I did it again last night using these great instructions: Upgrading Fedora using yum.
The only gotchya is that due to the replacement of init by systemd, when it came time to reboot, halt/reboot/etc were unable to send the correct signals to something that would shut the machine down, so I had to do a hard reboot (which never plays nice with my RAID arrays, but upon reboot there was no RAID re-sync which is either cool or scary, I’m not yet sure which). So that was a bit nerve-wracking.
rest here