I've tried to install SL within SL, but its always stuck at "examining additional disks". And even if it was to pass, it would still stuck at "Preparing for installation".

When I install SL from L, it went fine (but have this permission problem) I wonder if its the ICH6 problem, because I also get problems unmounting, resizing partitions.. the Console logs (All Logs) does not show anything special.. also nothing special from dmesg...