Open Terminal and enter
Open Terminal and enter
sudo nano /System/Library/CoreServices/SystemVersion.plist
and enter your admin password.
sudo nano /System/Library/CoreServices/SystemVersion.plist
and enter your admin password.Change the two strings "10.10" to "10.9". Leave the minor version number (e.g. 0 or 1) like it is. Hit ctrlO and Enter to write the file to disk.
Change the two strings "10.10" to "10.9". Leave the minor version number (e.g. 0, 1, 2...) like it is. Hit ctrlO and Enter to write the file to disk.Hit ctrlX to quit nano
Hit ctrlX to quit nanoLeave open the Terminal window.
Leave open the Terminal window.Install TrueCrypt 7.1a
Install TrueCrypt 7.1aafter the installation is finished change to Terminal and enter
after the installation is finished change to Terminal and enter
sudo nano /System/Library/CoreServices/SystemVersion.plist
again
sudo nano /System/Library/CoreServices/SystemVersion.plist
againChange the two strings "10.9" back to "10.10". Hit ctrlO and Enter to write the file to disk.
Change the two strings "10.9" back to "10.10". Hit ctrlO and Enter to write the file to disk.Hit ctrlX to quit nano
Hit ctrlX to quit nanoenter
entercat /System/Library/CoreServices/SystemVersion.plist
to recheck the correct system version (10.10.x).cat /System/Library/CoreServices/SystemVersion.plist
to recheck the correct system version (e.g. 10.10.2 or whatever it was).