This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1825987 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: disco -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1825987 Title: kernel 5.0 won't auto register bcache caching device Status in linux package in Ubuntu: Incomplete Bug description: Hi, Since I upgrade my desktop to Ubuntu 19.04, the boot process is enable to find the root file system, and drop me to a single user command line. It seems that kernel 5.0 does not automatically register the bcache caching device (/dev/sdb, SSD). However, it does register the backing device (/dev/sda6, rotating HDD). To recover, I have to type the following commands : # echo /dev/sdb > /sys/fs/bcache/register # lvm vgscan # lvm vgchange -ay # exit and then, the boot proceed to its normal end (graphical display manager). The problem does not occur if the system is booted with kernel 4.18.0. ========================= # lsb_release -rd Description: Ubuntu 19.04 Release: 19.04 # apt-cache policy linux-image-5.0.0-13-generic linux-image-5.0.0-13-generic: Installed: 5.0.0-13.14 Candidate: 5.0.0-13.14 Version table: *** 5.0.0-13.14 500 500 http://fr.archive.ubuntu.com/ubuntu disco/main amd64 Packages 100 /var/lib/dpkg/status # apt-cache policy linux-image-4.18.0-17 linux-image-4.18.0-17-generic: Installed: 4.18.0-17.18 Candidate: 4.18.0-17.18 Version table: *** 4.18.0-17.18 100 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825987/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp