Same bug in 17.04: configure lvmcache and reboot - system can't map cached device to /dev/mapper/ Fixed by update initramfs with hook in upper comment: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1423796/comments/12
Same bug in 17.04: configure lvmcache and reboot - system can't map cached device to /dev/mapper/ /bugs.launchpad .net/ubuntu/ +source/ lvm2/+bug/ 1423796/ comments/ 12
Fixed by update initramfs with hook in upper comment: https:/