Bidirectional sharing between the MacBook Pro and Debian 8 not working

See also questions close to this topic

• Display text instead of pin on MKMapview

  Working on an OSX app and Im wondering how to make a custom MKAnnotationView that will just show the text of the item instead of a red pin, thanks. Right now I think the problem is the ViewForAnnotation is not being called in my class which extends MKMapView

  EDIT:

   public override MKAnnotationView ViewForAnnotation(IMKAnnotation an)
      {
  
          if(an is MKUserLocation)
          {
              return null; 
          }
          NSString ReuseId = new NSString("NoPin");
          MKPinAnnotationView view = new MKPinAnnotationView(new 
  CGRect(0, 0, 1920, 1080)) { };
          Label label = new Label();
          label.Background = SeraphimColors.Background;
          label.AlphaValue = .5f;
          label.Tag = 42;
          view.CanShowCallout = true;
          view.Frame = label.Frame;
          label.Text = an.GetTitle();
          view.AddSubview(label);
          view.PinTintColor = NSColor.Blue;
          return view;
      }
  
• Can't complete a clean install of macOS High Sierra from USB. Macintosh HD not becoming a start up disk

  I am trying to do a clean install of macOS High Sierra. I've done clean installs of macOS plenty of times, but I have never had this problem. I am booting into my installation media on USB. The installation tools appear as they should. I'm using Disk Utility to erase Macintosh HD into a clean APFS drive. I then select Install macOS and follow the prompts, select Macintosh HD, and it restarts. However, Macintosh HD does not become a startup disk -- I just reboot into the USB installer media. In Disk Utility, there's 5GB of content on the disk, but it does not appear in the Startup Disk menu nor if I hold option on boot. What's going on here? First Aid says the drive is fine.
• Using Java, In debian 8 how to we restart networking and another services?

  My server is debian 8 (jessi) , when i restart networking using following java code then i get warning "Faild to restart Networking.service: Access denied."

   try
      {            
          Runtime rt = Runtime.getRuntime();
          Process proc = rt.exec("systemctl restart networking");
          InputStream stderr = proc.getErrorStream();
          InputStreamReader isr = new InputStreamReader(stderr);
          BufferedReader br = new BufferedReader(isr);
          String line = null;
          System.out.println("<ERROR>");
          while ( (line = br.readLine()) != null)
              System.out.println(line);
          System.out.println("</ERROR>");
          int exitVal = proc.waitFor();
          System.out.println("Process exitValue: " + exitVal);
        } catch (Throwable t)
        {
          t.printStackTrace();
        }
  

  Can any one solve it ? Thanks in Advance.
• Run a script at boot

  Am new to Debian OS Forgive if this sound naive.

  On my PC, I have Debian operating system. After boot, a link on chromium should automatically open.

  I have been googling on this topic since 2 days. I found that kiosk mode is working by executing script through .config folder.

  [Desktop Entry]
  Type=Application
  Name=scratch
  Exec=/home/pi/test.sh
  X-GNOME-Autostart-enabled=true
  

  The above works great if file is not in root folder, but it doesn't work if file is located in root folder

  Now I want to run this script at boot for non-root user.

  Is there any way in existence to do so without placing this script outside of root folder?

  Script to be Executed on boot:

  #!/bin/bash
   
  # Run this script in display 0 - the monitor
  export DISPLAY=:0
   
  # Hide the mouse from the display
  unclutter &
   
  # If Chrome crashes (usually due to rebooting), clear the crash flag so we don't have the annoying warning bar
  sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' /home/pi/.config/chromium/Default/Preferences
  sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' /home/pi/.config/chromium/Default/Preferences
   
  # Run Chromium and open tabs
  /usr/bin/chromium-browser --kiosk  http://example.com &
   
  # Start the kiosk loop. This keystroke changes the Chromium tab
  # To have just anti-idle, use this line instead:
  # xdotool keydown ctrl; xdotool keyup ctrl;
  # Otherwise, the ctrl+Tab is designed to switch tabs in Chrome
  # #
  while (true)
   do
    xdotool keydown ctrl+Tab; xdotool keyup ctrl+Tab;
    sleep 15
  Done
  
• Cron Daemon Not Receving EOF

  I have a cron task:

  0 0,4,8,12 * * * cd -P /usr/src/app && /usr/bin/flock -nx /tmp/mylockfile.lock bundle exec rake task --trace 1>>/proc/1/fd/1 2>>/proc/1/fd/2
  

  I can correctly see the task start and even see the final log message from it outputted via docker logs. The problem is the task finishes, but the process sticks around. It doesn't show defunct like a zombie process I normally see.

  Eventually I have to kill -SIGTERM PID and I'm wondering if the way I'm handling stderr and stdout is not how the crond expects it?

  Here's how it shows in ps aux

  root        41  0.0  0.0  27504  2692 ?        S    Sep18   0:00 cron -f -L 8
  root      2839  0.0  0.0  42268  2716 ?        S    00:00   0:00 CRON -f -L 8
  root      2844  0.0  0.0   4352   784 ?        Ss   00:00   0:00 /bin/sh -c cd -P /usr/src/app && /usr/bin/flock -nx /tmp/mylockfile.lock bundle exec rake task --trace 1>>/proc/1/fd/1 2>>/proc/1/fd/2
  root      2846  0.0  0.0   5816   684 ?        S    00:00   0:00 /usr/bin/flock -nx /tmp/mylockfile.lock bundle exec rake task --trace
  root      2847  0.0  1.0 512944 160524 ?       Sl   00:00   0:09 ruby /usr/local/bundle/bin/rake task --trace
  root     18454  0.0  0.0  21996  3932 ?        Ss   14:17   0:00 bash