Moving /var

[Jason Majors]

I currently have /var on hdc, but want to move it to sda. I've tried mounting
the new partition as var2, copying the files, changing fstab, then rebooting,
but lots of programs complain. I'd guess it has something to do with the state
of var at the time of the copy, vs at the time of shutdown/boot. That method
works well for home, usr, etc.
Is there a good way to do this for var? other than reinstalling?
Thanks.
Jason