Moving /usr problem

I've installed a new hard disk and decided to shift /usr.   I've tried using tar but I get lots of error messages - symbolic links or something.    When I unpack the file, amend fstab and reboot, the new /usr isn't picked up properly and I have to re-mount the old version.   Any ideas?     Yahoo

Segmentation fault - meaning

I've installed a package on a PC, and then the same on a laptop.  When I try to run it on the laptop I get a segmentation fault.  What does that mean, and what sorts of things might cause it? Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now