开云体育

Long story short, had to completely reload my desk top and bring Ubuntu 18.04 back to life.

I was attempting to use installation instructions as provided on the JMRI website.

Step 3. of the JMRI Linux installation instructions:

After running the Java installer, give user-level application access to your serial ports:

rich@rich-500-164:~$ chmod 666 /dev/ttyS0
chmod: changing permissions of '/dev/ttyS0': Operation not permitted

The same happened for ttyS1.?

I'm not a Ubuntu techy type, but I manage to get through it.?

As for this, it has me stumped.

Thanks,
Rich Ramik

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