The most safe way is
to create a small (dumb) 1GB virtual disk with controller using the PVSCSI
driver. Like this when the system boots up the driver is recognized by the OS
and installed.
Steps:
01. Add a small,
thin provisioned disk to the VM – 1GB in size is sufficient.
02. Choose a 1:0 SCSI
node (as on the image below).
03. Then select the
newly added SCSI adapter and click the change type button to
select VMware paravirtual
04. By then you’ll
see that the OS finds and installs the adapter….. Note that the VM is still
running as it hasn’t been rebooted yet.
05. Now you can
gracefully shut down the VM to make changes. Go to the edit settings dialog and
delete the 1Gb disk you have added in step 1. Validate the changes by clicking
the OK button, and go back to the edit settings dialog for the VM > choose
the SCSI adapter for the SCSI controller 0 (the boot disk), click the change
type button and select the VMware Paravirtual.
06. After booting
the VM you’ll see a dialog that a new driver was installed (again), and that a
reboot is necessary. Reboot the VM …
07. You can check
settings of the VM that a paravirtual driver is used (Select VM > Edit
settings > SCSI controller). Or you can also check insided the GuestOS that
the Paravirtual driver is used (Right click computer > Manage > Device
manager > Storage controllers.)
08. Disk may go to
offline mode as the SCSI controller type is changed. You may need to make it
online.
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