CLSRSC-400: A system reboot is required to continue installing during root.sh
May 16, 2025 Leave a comment
Problem:
While running the root.sh script, I encountered the following error:
root@mk23ai-b:~# /u01/app/23ai/grid/root.sh
Performing root user operation.
...
/u01/app/oracle/crsdata/mk23ai-b/crsconfig/roothas_2025-05-16_07-10-12PM.log
2025/05/16 19:10:17 CLSRSC-400: A system reboot is required to continue installing.
Died at /u01/app/23ai/grid/crs/install/oraafd.pm line 688.
If you think rebooting the system and rerunning the root.sh script will help, well, no… I’ve already tried :).
Troubleshoot:
Check if the secure boot is enabled:
root@mk23ai-b:~# mokutil --sb-state
SecureBoot enabled
Based on the previous output, Secure Boot is enabled. If you received a different output, such as “Secure Boot disabled,” continue your search.
Solution:
To disable Secure Boot, you cannot do it from the terminal; you need to access your computer’s firmware settings (BIOS or UEFI) and disable the Secure Boot option there.
In my case, I am using an Azure VM, and I can show you how I disabled it using the Azure console.
Note: This action requires VM downtime.
VM -> Configuration -> Security type section -> uncheck “Enable secure boot” -> Apply
Note: This action requires VM downtime.
VM -> Configuration -> Security type section -> uncheck “Enable secure boot” -> Apply
Connect to the VM and rerun root.sh script:
root@mk23ai-b:~# /u01/app/23ai/grid/root.sh
...
mk23ai-b 2025/05/16 19:32:48 /u01/app/oracle/crsdata/mk23ai-b/olr/backup_20250516_193248.olr 0
2025/05/16 19:32:50 CLSRSC-327: Successfully configured Oracle Restart for a standalone server
About Mariami Kupatadze
DBA Knowledge Base 