truecrypt 7.1a requires Mac OS X 10.4 or later on Yosemite 10.10

Question

After reading articles about the state of Truecrypt in February 2015, I decided to download the last stable version of Truecrypt that allows full usage of Truecrypt: that is, version 7.1a

7.2 version that can only be used to view, but no longer to create new, TrueCrypt volumes.

see https://www.grc.com/misc/truecrypt/truecrypt.htm

I then proceeded to install this on my Mac, running on Yosemite 10.10

But I got the error message "truecrypt 7.1a requires Mac OS X 10.4 or later", see below.

I guess it's simply a schoolboy error from a developer of the Truecrypt team, as it considers 10.4 being above 10.10, or maybe it's rather Apple who messed up & should have consistantly used 2 digits after the dot (i.e. use 10.04 rather than 10.4).

In any case, I find myself unable to install Truecrypt. Anyone found a solution for this?

Answer 1

1. Copy the mpkg from inside the downloaded disk image onto your Desktop.
2. Right click the mpkg file and choose Show Package Contents, then open the Contents folder.
3. Open distribution.dist with a text editor.

4. Remove lines 13 to 18.

   

5. Save the file and open the mpkg normally.

Answer 2

• Open Terminal and enter
  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, 1, 2...) like it is. Hit ctrlO and Enter to write the file to disk.
• Hit ctrlX to quit nano
• Leave open the Terminal window.
• Install TrueCrypt 7.1a
• after the installation is finished change to Terminal and enter
  sudo nano /System/Library/CoreServices/SystemVersion.plist again
• 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
• enter cat /System/Library/CoreServices/SystemVersion.plist to recheck the correct system version (e.g. 10.10.2 or whatever it was).

Answer 3

At step 4. why not simply correct the bug line 13 as :

    if(!(system.version.ProductVersion >= '10.04.0' )) {

etc.