Installing arduino-1.8.11 32bit (dnloaded form arduino.cc) on my Lubuntu 18.04 laptop.

The install process runs fine, but lauching arduino (in terminal or by clicking on icon) fails.

• ./arduino

  • terminal says "Error : could not open /opt/arduino-1.8.11/java/lib/i386/jvm.cfg"

• Searched for such a file,

  • found one in /usr/lib/jvm/java-1.11.0-openjdk-i386/lib
  • copied it over go /opt/arduino-1.8.11/java/lib

• ./arduino

  • terminal says "Error : failed /opt/arduino-1.8.11/java/lib/i386/server/libjvm.so, because /lib/i386-linux-gnu/libm.so.6: version 'GLIBC 2.29' not found (required by /opt/arduino-1.8.11/java/lib/i386/server/libjvm.so)"

Arduino 1.8.10 works fine.

Associated Arduino Forum thread:
https://forum.arduino.cc/index.php?topic=663860