I've installed LibreELEC 9.2.1 on my Raspberry Pi 4's SD card. For technical reasons, I need to remove the card from the Pi and read a log file using my laptop.
I've tried mounting the SD card from my Ubuntu 16.4 machine but have not been able to do so. It's as if Ubuntu fails to recognize the specific file system being used.
What type of file system is the SD card formatted with? How can I access files on it from a Windows or Ubuntu Linux machine?
lsblk
and put its output to your question.