Sujith,
So long as you are using the LANDesk .tbi files it is possible to deploy the OS from a portable hard drive. I have done this in 9.0 (for deploying Win7 OS)havent tried in 9.5 but belive it should still work. this is going to be down and dirty no HII, or anything this will just get the image on the machine. HII and other things can be done; but woudl require a much more indepth write up and I do not have the in depth knowledge to ensure 100% success with that i will leave it to just getting the OS on the machine.
Please remember i am doing this from what i did in 9.0SP3 i havent tried since; but did use it to upgrade 70 machines that had no connectivity to core.
What you will need
-- Portable Hard drive for image file(s), Driver files, sysprep file, and imagew applications (found on your core)
-- 2nd usb drive made into a provisioning boot device or a blank cd (ive never used the cd)
1.) From your console go to OSD you should see an icon on the tool bar that looks like 4 green floppy disks click it and follow directions to make bootable USB/CD
2.) Copy your image and the imagew.exe and imagew_64.exe to your portable hard drive. location i believe is \MangementSuite\osd\imagew 2\ or \managementsuite\ldmain\osd\imagew 2\
3.) boot machine to provisioning usb/cd (once booted you can remove the usb/cd)
4.) ****Optional Format Drive using diskpart
5.) ****Optional remove all drive letters from cd/rom's and drives (again via diskpart) -- from the command line in the WinPE environment run this command:
diskpart.exe -s x:\ldclient\rmvol.txt
6.) plug in the portable hard drive with your image and the imaging tool
7.) use diskpart to see what drive letter it was assigned
8.) change to that drive in teh command line
9.) run imagew.exe (possibly imagew_64.exe havent tried in 9.5) as follows:
imagew.exe /r /o /x /d:0 /rb:0 /f:<absolute_path_to_imagefile>.tbi
/f example:
/f:e:\Images\myOSimage.tbi
10.) OS should load and now you are more/less ready to proceed.
Next Steps would be to mount a partition (assign drive letter) so you can inject your sysprep file to root (if you wanted).
Once you get into the OS ensure you install an Agent.
again this is only to get an OS on the box. i know drivers can be loaded using DSIM(sp?) but i am not knowledgeable enough to do that... most i ever did was deploy the os and inject sysprep. then add the drivers after the fact
HTH and good luck!