SELinux relabel forced after GRUB2 reinstall

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http://forums.fedoraforum.org – I'd like to start using fsarchiver instead of partimage for backups so I can move beyond ext3. After restoring the root partition with fsarchiver, I re-install grub2 via the Fedora 17 DVD: "Troubleshoot" then "Rescue Installed System" PROBLEM: after rebooting FC17, an SELinux relabel is forced, which takes about 20 minutes. I suspect this is occurring because I "messed with" the file system outside of SELinux's control. Any way to avoid it? Thanks! Dave (HowTos)