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No surprise then, > unless you turn all messages you care about into 'printk(KERN_ERR ...)' > or 'dev_err(...)'. > > I would also recommend increasing loglevel to 4 (permanently), because > KERN_WARN is rare and usually tells you about pathological conditions. > The 'quiet' option is an alias for that and used to be a quite popular > default in distributions. > No 'quiet' option and with loglevel at 4 I still don't seem to see any prints. This journalctl -k -b -1 might help: https://gist.github.com/hwentland/7564cd08950e38dc4b7d305352481c85 I see this, but the same message appears on a good boot: Oct 03 16:30:02 hwentlanrmb kernel: hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19) Interestingly if I set loglevel to 6 my boot gets much farther but then gets stuck at "A start job is running for Load Kernel Modules with ever increasing timeout values". Harry > Regards, > Michal