Where is my 2G?

[Brian Astill]

My fault, but if any of you can help me, I'd be grateful.

My hda Ubuntu partition was looking like it might become a bit 
cramped eventually (less thsn 2G free), so I decided to pre-empt 
by creating a partition on hdb to hold  /home (a bit over 3G).  
That should leave about 5G free on hda - ample.

I used mc to copy /home from hda to hdb and it looked OK, but near 
the end of the copy mc said "no space left" - which was daft, 3G 
can't fill a 12G partition!  Then I looked at hdb and all it had 
was an empty lost & found directory.

Then I realised that mc had "copied" onto an unmounted partition!
I mounted hdb and this time effected a real copy.  BUT!
hda now showed as being 100% full!  Where had the 2G free gone to?

BY deleting the "old" home directory I have freed-up 3G, but there 
should be 5G+ free.  I have searched the hda partition and cannot 
find 2G-worth of unwanted files anywhere.  Where ARE they?  
-- 
Regards,
Brian