I have this exact same problem too. Upgraded from 16.04 (which ran just fine) to 18.04, now get a 30 second delay before boot, with this "failed to connect to lvmetad. Falling back to device scanning Gave up waiting for suspend/resume" error.
Not sure what help I can be at this point, but should anybody think they could do with additional data in this regard, give me a shout. I have logged a question about the problem here: https://askubuntu.com/questions/1097013/error-on-boot-failed-to-connect-to-lvmetad-after-18-04-install -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768230 Title: Long time booting : Failed to connect to lvmetad. Falling back to device scanning. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1768230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
