When I am running Ubuntu 20.04 from a live USB (without installing it) it usually happens that when a certain degree of activity is reached (i.e lots of programs running and/or lot of internet tabs with videos at the same time) or a lot of memory is used (many downloads, for example) the laptop freezes totally and I am forced to turn off it by pressing the power button (no solutions like the ones exposed here work).

As I have resigned myself to it I would like at least to know if I can monitor that process in any way: i.e. if I can check any indicator or program which tell me that the activity has reached certain level that makes this freezing likely (I don't know which one is exactly the parameter I should check, I guess the RAM memory, but not sure)

  • I'm not sure if it's any help, but this sounds like a USB stick limitation. I ran Ubuntu from a USB stick for a year for work and found that things got very unreliable when I used anything which needed a lot of disk access, like Docker. If I was doing this again I'd use an external SSD instead. I know it's a pain but is there any way you can try a different USB drive? Feb 16, 2021 at 21:04
  • 1
    You can check RAM use in terminal by typing free. Ubuntu tries to run in RAM if not enough RAM things slow down, You did not mention how you made the USB. If it is booting ISO files stored on a NTFS partition it will not power off. Feb 17, 2021 at 1:53
  • This is pretty old but may still work: askubuntu.com/questions/582675/shutdown-persistent-usb-install Feb 17, 2021 at 1:56


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