Thanks
Reports **the volume mac os x base system appears to be ok**
The disk volume that is a problem is macintosh HD - how do I get fsck to check that volume?
Recently upgraded my MacBook to lion. There was clearly some problem during installation as it failed stating the hard disc needs repairing with disc utility. Disc utility can't fix it. I have got quite a bit backed up via MobileMe/backup utility but am sure I will loose stuff if I just erase...