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New kernel update keeps rebooting - F28

asked 2018-09-17 00:41:24 -0600

starchyme gravatar image

kernel-4.17.19-200.fc28 and subsequent kernels keep rebooting on startup. Have to revert to selecting previous kernels to start Fedora 28. After browsing some logs, I cannot seem to find the immediate culprit for this condition. Changing boot parameters have no effect. Please explain how I can start tracing this condition

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answered 2018-09-18 04:36:19 -0600

genodeftest gravatar image

updated 2018-09-18 04:42:59 -0600

After the boot failed, you can still choose the old kernel from grub to run a bootable system.

  1. On next successful boot, run journalctl -b -1 for getting details about the failed boot.
  2. Please check the time of start and end of the log. Does it match the time you booted/rebooted? If yes, the log should have some information at the end which may hint to what was going wrong. Search on https://bugzilla.kernel.org/ and https://bugzilla.redhat.com/ for similar error messages. If no, then the kernel failed before mounting the filesystem containing your system journals, usual residing in /var/log/journal.

See also: Fedora Wiki: Common kernel problems

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I have perused the logs, and no immediate warnings are standing out. I installed some missing things it complained about but it dis not resolve the problem. I attempted blacklisting various devices. I also did a relabel as it seems that SElinux can produce reboots if something happened on the filesystem. The relabel did not help. I also uninstalled the kernels and when it asked to update again to perhaps have it run some cleanup or post-scripts, but the results are the same. Perhaps time to log it as a bug.

starchyme gravatar imagestarchyme ( 2018-09-23 12:24:58 -0600 )edit

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Asked: 2018-09-17 00:41:24 -0600

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Last updated: Sep 18 '18