Kernel log tips and tricks

See Also

• Kernel

failed to load module mdraid: libbd_mdraid.so.2: cannot open shared object file: No such file or directory

Install required libraries

$sudo apt-get install libblockdev-crypto2 libblockdev-mdraid2

nvidia: module verification failed: signature and/or required key missing - tainting kernel

Todo

Sub-process /lib/systemd/systemd-networkd-wait-online returned an error code (1)

Increase default timeout value

sudo systemctl edit --full systemd-networkd-wait-online.service

Change the following line, by adding "--timeout-10":

ExecStart=/usr/lib/systemd/systemd-networkd-wait-online --timeout=10

ERST: Error Record Serialization Table (ERST) support is initialized

If system include any watchdog settings in the BIOS? If such a hardware watchdog is enabled in BIOS, then you must either install the appropriate watchdog driver (which may be proprietary and only available for some distributions) or disable the watchdog

Failed to load module mdraid: libbd_mdraid.so.2: cannot open shared object file

Install packages

sudo apt-get install libblockdev-crypto2 libblockdev-mdraid2

Verify

/usr/lib/x86_64-linux-gnu/libbd_mdraid.so.2