First download the latest version of WSJT-X.app from
https://physics.princeton.edu/pulsar/k1jt/wsjtx.html
Then execute the ".dmg" file, this will open the install page. Drag the WSJT app to your apps folder. Then open the Terminal and do this:
1. List long the file supplied on the download volume
ls -l /Volumes/WSJT-X/com.wsjtx.sysctl.plist
-rw-r--r--@ 1 antonywatts staff 543 28 Mar 12:53 /Volumes/WSJT-X/com.wsjtx.sysctl.plist
As you can see it has the "@" marker indicating special attributes, and has the wrong owner and group. The file as needed in /Library/Daemons is
-rw-r--r-- 1 root wheel 543 21 Aug 15:18 com.wsjtx.sysctl.plist
2. Copy the file to the correct location
sudo cp /Volumes/WSJT-X/com.wsjtx.sysctl.plist /Library/LaunchDaemons
it has special permissions set - as seen by a '@' after the mode, as well as the wrong owner and group
-rw-r--r--@ 1 antonywatts staff ...
3. After copying the file to /Library/LaunchDaemons both issues must be solved. First change your directory
cd /Library/LaunchDaemons
and list the files using
ls -l
where you will see the things that are wrong with the .plist: the "@" and the wrong owner and group
4. Remove the special permissions "@"
sudo xattr -c com.wsjtx.sysctl.plist
and check that is has gone with another
ls -l ...
5. Set the correct owner and group
sudo chown root:wheel com.wsjtx.sysctl.plist
The result should be
-rw-r--r-- 1 root wheel 543 21 Aug 15:18 com.wsjtx.sysctl.plist
6. Now restart your Mac and check the settings with
sysctl -a | grep sysv.shm
If shmmax is not shown as 52428800 WSJT-X will fail to load with an error message: "Unable to create shared memory segment". And you have to fiddle around a bit more.
UPDATE
I just bought a new Apple MacBook Air (M1 chip). On this the installation went more smoothly. I copied the com.wsjtx.sysctl.plist file across to /Library/LaunchDaemons (see #2 above). It arrived with right owner and group and no special permissions, and then I restarted the MacBook Air and the sysv.shm value had correctly been updated.
So WSJT is right at least for new MacBooks.
2 comments:
Thankyou.. i will try this later, i don't boot into Mac OS Big Sur too often, i prefer my MBP just booting up into the (now) default Debian instead, i just assumed WSJTX would run on Big Sur, i guess i should go back to Mojave where all my software just worked.
I only use FT8 in RX mode, and as the sunspots are coming back i want to get FT8 decoding on any OS - so i can see where the activity is hiding on 6m :)
Thankyou,
Mark
WSJT-X v. 2.60 gives me the error message: "unable to create shared memory segment" running OS 12.5.1 Monterey. Is there a fix to this issue?
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