Comment 49 for bug 811604

 After doing a regular apt-get upgrade on my Ubuntu 18.04 LTS about 5 days ago.I finely fixed my laptop that has the beast triple boot system with windows 10, Ubuntu 18.04 and Kubuntu 18.04 that Ive had in the last 30 years .The uvcdyncrtl lib after filling up my /var partition caused the primary super-block to be damaged on my /dev/sda8 partasion. There for I go and boot into my old trusty Kubuntu 18.04 and do just a simple apt-get update and bam It freezes up too. Booted into Windows 10 and its sill working thank about that for a minuet or two LOL. I had to use the drive's backup super-block to get things back booting, then deleted /var/log/uvcdynctrl-udev.log file and set the debug=1 to "0". Here some good documentation on how to fix the super-block in case if someone else has the same problems. https://www.linuxbabe.com/desktop-linux/fix-cant-read-superblock-error They really need to fix this instead of us just working around it.