With this(the changes are highlighted in bold to help identify them) : OsvLion=`/usr/sbin/system_profiler SPSoftwareDataType | grep 'System Version' | sed -e 's/\(.*\)OS X \(.*\) \(.*\)/\2/g'` In the file InstallationCheck, replace this: I also had to change the syntax of the comparison. To get around this, and preserve the spirit of the script, the change I made was to limit the comparison to the incremental version number. Think about it, when it comes to a mathematical comparison, 10.10 is a smaller number than 10.5. I started with Larry's suggestion, but had to change a few more things to get it to install.Īs it turns out, version 10.10 is evaluated as being 'older' than 10.8 & 10.5 when the bash script is ran. I was having the same problem, but was able to get 9.0.1 to install under OS X 10.10 (Yosemite) after modifying InstallationCheck. Osv=`/usr/sbin/system_profiler SPSoftwareDataType | grep 'System Version' | sed -e 's/\(.*\)Mac OS X \(.*\) \(.*\)/\2/g'` You need to find the the file called : InstallationCheck, open it and find the string close to this :