Effects of image preparation (RIS and others)

Hi,

we have a storage filter. When using RIS for example, the computer is
prepared for distribution. To me this process seems to corrupt the disk.sys
service parameters, meaning I’m not able to attach the \HarddiskX\PartitionY
devices before the FS comes up. I know how to fix this behavior, but I’d
perhaps better relocate in the boot load order. I’m very unsure if this is
the right interpretation of the issue. Has anybody experienced this or could
explain?

Thanks.