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Show hardware errors and warnings in the kernel log

harmless rootSystem and hardwaredebian, ubuntu
root@server
dmesg -T --level=err,warn

Filters the kernel messages since the last boot to the error and warning levels. Typical hardware indicators are I/O error, ata1: failed command, EXT4-fs error, Machine Check or EDAC. -T converts the timestamps into clock times.

Note: The -T times can be off after suspend or clock jumps. journalctl -k -p err -b -1 shows messages from earlier boots.

Also searched as

  • find disk errors in log
  • show kernel error messages
  • search for i/o error linux

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