After Guest OS patching, Virtual Machine fails to boot if SCSI controller is set LSI Logical SAS
The Linux kernel in RHEL 7 might not have the necessary drivers for the LSI Logic SAS controller, which could prevent the VM from booting.
Patches, especially those affecting the kernel, drivers, or storage stack, can sometimes introduce changes that alter how the system interacts with hardware or virtual hardware components like the SCSI controller.
The patch likely made changes that affected the VM’s ability to properly recognize or interact with the LSI Logic SAS controller during the boot process. This can happen if the patch introduced new drivers, updated existing ones, or changed the way the OS interacts with storage controllers.
To resolve this issue, check the SCSI controller type that you have selected.
Reconfigure it to use the LSI Logic Parallel controller, which is also supported by RHEL 7.
After reconfiguring the SCSI controller, power on the virtual machine
For information on changing the SCSI controller, see Changing the virtual SCSI controller of a virtual machine (1002149).