[How SCCM manage the boot image in PXE boot process]

Hi, I have a question about how SCCM control which boot image is using in PXE booting.

I have 3 version of boot image A, image B and image C, created in SCCM and copy to the remote DP.

The image C is crashed and then I delete the image C and make a new one image D,

but I found the PXE boot will use image B not the new one image D.

 

Really no idea about how SCCM manage the boot image?

Please help me to get clear.

Thank you very much :-)

[Question on OSD task sequence variable]

My company use only one OSD task sequence to deploy both Winxp and Win7 OS.

The new bare metal PC should be register into a assets management system, with a few info (MAC,PC name,OS version)

Then we can boot from PXE and the PC will apply the right OS version from SCCM.

 

I found there was some variables used in OSD task sequence to define which OS should be applied?

But in collection and computer options, I can not find the variables where it was defined?

 

Is there any other way that the variable can be created or defined?

 

thank you very much.