Can't change partition size/not full size

[marcin0903]

I changed my partition size firstly from (full disk size) about 160GB to 80GBs in order to create a new one which was another 80GBs after that I decided to just leave this 160GB and one partition, so I did what I decided, but now there is a problem. I did everything under Installation CD and than it shows in Disk Tool that the partition is 160GB on diagrams but under it it shows: total size 80GB... and the same is when I launching Snow Leopard. I'm clicking Macintosh HD and informations than it shows total size: 80GB, I tried to change again partition sizes but it does nothing, I cannot do anything under Mac OS and bootable installation disc. I'm completely stuck it shows, always and always that "Spliting in to partitions finished due an error - could not modficate partition's map".

Any issues?

 

[fluffyx]

"Could not modify partition map" sounds ominous.

First things first, back up your data!

With an error like that, I'd want to erase the hard drive, and then restore from a backup. If you have diagnostic tools that can perform some in-depth hard drive tests (surface scan, etc), I'd run that*just to be safe.