/srv/irclogs.ubuntu.com/2018/06/08/#ubuntu-kernel.txt

=== ec0 is now known as jhebden
=== himcesjf_ is now known as him-cesjf
sylvainc__Hello, I have errors booting BTRFS rootfs on Ubunut 16.04 LTS system since linux-image-4.4.0-127-generic update linux-image-4.4.0-124-generic boot without problems, the BTRFS rootfs partition is clean (checked with a livecd), the problem appear mainly on sevral laptop computers, I want to know if you have some pointer about this kind of problem befor I fill a bug report.10:51
sylvainc__For details I get a kernel panic with error "not syncing: VFS unable to mount root fs on unknown-block(0,0)" when hidden grub boot occurs, but if I enter grub then boot no error occurs.10:51
sylvainc__I'have done many test with grub reinstall, but linux-image-4.4.0-124-generic boot well in all cases, but linux-image-4.4.0-127-generic doesn't, Thanks for your pointer or help.10:58
apwsylvainc__, it is not at all clear how the kernel would even know if you hit return or grub did it for you12:15
apwsylvainc__, i think we need a bug filed, and could you get a 'dpkg -l | grep linux-' output attached to the bug12:16
sylvainc__apw, thanks for your answer, I agree, it's pretty disturbing, I will try to do some tests before report the bug (if necessary)12:24
apwsylvainc__, the message implies the kernel is not finding the initramfs which would be grub's fault often12:25
apwbut quite how it does that different for an auto select of 127 as against it picking 127 by default12:25
apwit beyond me at the moment12:26
sylvainc__apw, thanks no wories, I will try to find more elements by doing more tests about this issue12:32
cascardoadding your grub cnfig files to the bug could help13:22
sylvainc__cascardo, ok thanks i will add it14:11
apwsylvainc__, and let us know the bug number here in case14:11
sylvainc__apw, ok, I will continue to work on this issue because I need to understand it, but i must leave now, thanks for your help again14:35
apwsylvainc__, np14:37
jeremy31Ubuntu 18.04 killed my bluetooth and it seems that the upstream fix from https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/bluetooth?id=803cdb8ce584198cd45825822910cac7de6378cb works for everyone23:01
jeremy31Ubuntu bug link https://bugs.launchpad.net/ubuntu/+source/linux/+bug/176464523:02
ubot5Ubuntu bug 1764645 in linux (Ubuntu Bionic) "Bluetooth not working" [Medium,Confirmed]23:02

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