Month: March 2022

Disable CentOS 8 Load Kernel Modules ipmi_si No such device error

Posted on by Bian Xi Leave a Comment on Disable CentOS 8 Load Kernel Modules ipmi_si No such device error

Disable CentOS Load Kernel Modules ipmi_si No such device error

After CentOS 8 boots up, following error appeared when starting systemd-modules-load.service in /var/log/messages

Mar  1 15:48:40 centos kernel: ipmi_si: IPMI System Interface driver
Mar  1 15:48:40 centos kernel: ipmi_si: Unable to find any System Interface(s)
Mar  1 15:48:40 centos systemd-modules-load[561]: Failed to insert 'ipmi_si': No such device

Reason

The module ipmi_si is designed for physical servers with a remote control interface - an IPMI, and the CentOS 8 is running in a VM.

Solution

Create /etc/modprobe.d/blacklist-ipmi.conf file with following lines,

blacklist ipmi_si
blacklist ipmi_devintf
blacklist ipmi_msghandler
blacklist ipmi_ssif
blacklist ipmi_watchdog
blacklist ipmi_poweroff
blacklist acpi_ipmi
blacklist ibmaem
blacklist ibmpex

References

Boot fails after update ipmi_si No such device

Add Search Domain for DNS in CentOS 8

Posted on by Bian Xi Leave a Comment on Add Search Domain for DNS in CentOS 8

Add Search Domain for DNS in CentOS 8

There is no option in network configuration GUI menu for search domain. Following steps can be used to add search domain.

  • Modify file /etc/sysconfig/network-scripts/ifcfg-<interface_name>
  • Add line SEARCH=<search_domain>
  • Restart NetworkManager by run command systemctl restart NetworkManager

References

How to configure static DNS and Search domain for Redhat / CentOS and Redhat Linux