KB 10078 VDO troubleshooting

Owned by Adam Spinek
Mar 22, 2023
2 min read

KB ID: 10078

Product: Storware Backup & Recovery

Version: not applicable

Published: 2022-03-22

Last modified: 2022-03-22

Problem

VDO device could not be mounted. In vprotect_daemon.log there are errors:

modprobe: FATAL: Module kvdo not found in directory /lib/modules/5.14.0-267.el9.x86_64

Solution

Check if VDO package is installed.

[root@sbr-as-scale ~]# yum install vdo Failed to set locale, defaulting to C.UTF-8 Last metadata expiration check: 1:55:13 ago on Wed Mar 22 09:40:05 2023. Dependencies resolved. ========================================================================================================================================================================================================================================================================================== Package Architecture Version Repository Size ========================================================================================================================================================================================================================================================================================== Installing: vdo x86_64 6.2.7.17-14.el8 baseos 666 k Installing dependencies: kmod-kvdo x86_64 6.2.8.6-88.el8 baseos 349 k Transaction Summary ========================================================================================================================================================================================================================================================================================== Install 2 Packages

Make sure that the secure boot is disabled for the machine where VDO is installed. Run the below command to determine the secure boot status.

[root@sbr-node ~]# mokutil --sb-state SecureBoot disabled

Check if you can load kvdo module manually.

If this fails, it means that the currently installed kernel does not include kvdo module. Try the below steps to solve the problem:

  1. Update your OS to the latest version. It is possible that the new version is free of this bug.

  2. Install the older kernel version that is proper for the currently installed kvdo module:

    1. Check kvdo package version

    2. List files in this package and note the kernel version. It can be found in files path like /lib/modules/kernel_version

    3. Install the correct kernel version or boot the system from it if it is already installed.