Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: kexec-tools (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1654394
Title:
No kdump is created
Status in kexec-tools package in Ubuntu:
Confirmed
Bug description:
After creating a test crash (echo c > /proc/sysrq-trigger), the Ubuntu splash
screen is shown for around 20 seconds, with the dots being filled and cleared,
then the system restarts into, what I assume is, the configured
kdump-initrd-image and gives me a busybox shell.
The system's root is not mounted, its block-device is not available under
/dev.
Rebooting from there back to the normal system shows no dumped kernel
under the configured /var/crash directory. /var/crash is part of the
root fs, an ext4 mounted from /dev/nvme0n1p3
Expected behaviour:
echo c > /proc/sysrq-trigger
should give a kdump file in /var/crash
Actual behavior:
no file i /var/crash, a busybox shell in the kexec:ed kernel.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: kexec-tools 1:2.0.10-1ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jan 5 21:38:57 2017
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-xenial-amd64-20160624-2
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-01-03 (2 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary
20160624-10:47
SourcePackage: kexec-tools
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.grub.d.kexec-tools.cfg:
GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT crashkernel=384M-:256M"
mtime.conffile..etc.default.grub.d.kexec-tools.cfg: 2017-01-05T18:09:40.998631
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