I'm using a 1-y-o MacBook (2.16 GHz, C2D)with fully updated Leopard. Besides OS X, I multiboot (using rEFIt) a number of Linux OSes. Right now, I'm trying to get into single user mode in OS X. So, I reboot, hold down +s and then click on the Apple icon in rEFIt. I am immediately brought to a shell after what appears to be no booting at all. In this shell, if I type Code: /sbin/fsck -y I get a message telling me that /sbin/fsck is not a recognized command etc. So, even though +s does bring me to "shell", nothing whatsoever works in this shell. Not even "reboot". The only way to get out of it is to do a hard reboot. I've also tried +v (verbose) on booting. This indeed does induce some verbosity, but it ends up booting to the normal OS X. I have a feeling that rEFIt is interfering with my ability to get to a single user mode. Can anybody please help me resolve this?