I know enough Unix to be dangerous, but not enough to get out of this one. I got Ubuntu installed on my old PC, and it came up just fine. Gnome is excellent!The partition editor says:/dev/sda1 ext3 format 35.70GiB total 2.04GiB used 33.65GiB free/dev/sda2 extended fmt 1.57GiB total --- used --- free> /dev/sda5 linux swap fmt 1.57GiB total --- used --- freeSo it looks like I have 33.65 free space. I downloaded Java 6 SDK, but when I try to run it, it says "You will need at least 254104 kBytes of Disk Free. Please free up the required Disk Space and try again."Last time I checked, 254MB fits nicely in 33.65GiB. Huh?So in a shell window, I ran df -h and get:Filesystem Size Used Avail Use% Mounted ontmpfs 316M 17M 299M 6% /lib/modules/2.6.24-19-generic/volatiletmpfs 316M 17M 299M 6% /lib/modules/2.6.24-19-generic/volatilevarrun 316M 100K 315M 1% /var/runvarlock 316M 4.0K 316M 1% /var/lockudev 316M 40K 316M 1% /devdevshm 316M 12K 316M 1% /dev/shmtmpfs 316M 24K 316M 1% /tmpgvfs-fuse-daemon 316M 186M 130M 59% /home/ubuntu/.gvfsSo it looks like there's not more than 316MB free. Can you help me understand what I'm seeing here? I think perhaps that large drive is not mounted, but that's beyond my Unix skills.Help a noob?