Segfault on installation

[wari]

Just discovered this game and I thought of giving it a try before I buy, unfortunately, I can't install it.

System: Core 2 Duo 2.4Ghz
RAM: 8GB
GPU: Nvidia 8600
OS: Ubuntu Hardy 64bit

Installation Results:
$ ./PenumbraOvertureDemo-2553.sh
Verifying archive integrity... All good.
Uncompressing nixstaller.........................................................
Collecting info for this system...
Operating system: linux
CPU Arch: x86_64
Warning: No installer for "x86_64" found, defaulting to x86...
Segmentation fault


Further details:
+ cd /tmp/selfgz16589
+ res=0
+ test xsh != x
+ test xn = xy
+ eval sh ./startupinstaller.sh
+ sh ./startupinstaller.sh
Collecting info for this system...
Operating system: linux
CPU Arch: x86_64
Warning: No installer for "x86_64" found, defaulting to x86...
Segmentation fault
+ res=139
+ test 139 -ne 0
+ test xn = xy
+ test n = n
+ cd /tmp
+ /bin/rm -rf /tmp/selfgz16589
+ eval true
+ true
+ exit 139