Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
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:
New
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
