Since that time, I determined that the cause of this problem is that I have two kernels for each kernel release: lowlatency and generic. The upgrade puts the headers in for generic whether I am running lowlatency when the silent upgrade takes place or do the upgrade in a terminal window by hand. Therefore, the upgrade does not check to see if I have the same release in both lowlatency and generic. I have to remember to install the headers for lowlatency after any kernel update. Since the header update includes virtualbox updates I analyze that this solves the failed WiFi and Virtualbox corruption I found before I realized the headers were not up to date. The failed WiFi and Virtualbox were disguised because I could boot partially with previous low latency headers but not correctly. The ethernet hid the WiFi problem.
I recommend that upgrades for kernels and headers be scripted for when both lowlatency and generic (when present). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1894867 Title: WiFi works on kernel version LL 115 but not LL 117 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1894867/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
