Users Guide

Remote Services Operations 35
Important
• The drivers unpacked and attached are removed after the time specified in
ExposeDuration parameter or if no time is specified in the method
invocation then by default the OEMDRV USB device is removed after 18
hours.
• Ensure that network based ISO images attached during the process are
detached before you use Unified Extensible Firmware Interface (UEFI)
System Service.
• When installing Red Hat Linux 5.3 using remote services commands, the
installation will fail whenever there is an OEM drive (for driver source)
attached. To avoid failure, do not attach the OEM drive when using
remote services commands to install Red Hat Enterprise Linux 5.3.
• After operating system deployment, the OEMDRV drive is attached for 18
hours. If you want to perform other operations such as update,
configuration, or export and import after operating system deployment,
you must reset Lifecycle controller or cancel and enable system services.
• The following methods can be used to boot the system from an ISO image
on a network share or to initiate PXE boot mechanisms:
–The BootToNetworkISO() method on the
DCIM_OSDeploymentService class will boot the system using an
ISO
image that has been made available on a CIFS or NFS network
share. The method takes the ISO image name, network share
information, and exposure duration as input parameters and returns a
job identification that can be subsequently checked for the status of
the unpack and share activity. Network share information includes the
IP
address of the share, the share name, share type, and user name,
password and workgroup data for secure shares. For additional security
a
hash value can be calculated using well known hash algorithms and
this value along with the type of the hash used can be provided as
input parameters.
–The BootToPXE() method on the DCIM_OSDeploymentService
class initiates a Pre-Boot Execution Environment (PXE) boot of the
system. The method requires no input parameters.
–The ConnectNetworkISOImage() method connects to the network
share and attaches the ISO specified in the command as a virtual USB
CD-ROM device to the host server.