Folks....I recently bought a powered USB 3.0 hub from Darty in France (IT WORKS brand). When I booted up my Pi, I noticed several messages something like "USB Port 2 over powered...". Unfortunately they went by too fast to get the whole wording.
Of course that scared me a bit. So I shutdown and disconnected the hub. On reboot all seemed ok, but later (several days and several reboots later) I noticed that the Pi was now complaining that some of the file systems did not mount correctly and I should run fdsk.
When I tried to umount /boot before running the fdsk procedure, it completely corrupted my SD card and I had to restore from the last backup, which worked, but now it is complaining about my USB memory stick.
I'm running a B+ Pi with Raspbian OS.
Question 1. What is going on with my powered hub and the Pi? And what should I do about it? I eventually want to attach a external hard drive which is powered via the USB connection.
Question 2. Is/was the SD card corruption related to trying out the powered hub or just a "random act of violence"?