I had a similar issue with an existing Ubuntu 16.04 LTS install on my Dell Precision 5820 tower that has booted without issue for 2 years. After updating the BIOS via the Ubuntu Software Center (to 1.13.0), my computer gave only a black screen.
After clearing the BIOS, CMOS and NVRAM by removing the CMOS battery, it would only boot to BusyBox. BusyBox gave me a "ALERT! UUID=*** does not exist. Dropping to a shell" error. My OS is installed on a NVMe PCIe SSD boot drive, and I have a single SATA file drive. Setting the SATA Operation from to "AHCI" and Disabling the "Intel VMD Technology" under System Configuration in the BIOS seems to have solved the issue for me as well. (@kvasko - thank you!) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1812758 Title: Boot failure on Dell Precision 5820 with Intel Xeon W-2123 CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1812758/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
