[cctalk] RSTS/E layered installation issue

Hi all, So I have started playing around with RSTS/E v10.1 on one of my PDP-11s and I am trying to install PDP11-C v1.2. I have the auto-installer in [82,6] and the tape mounted but it fails: $ @[82,6]autoin RSTS/E Auto-Install Procedure V1.1 18-Oct-26 01:47 AM Type "?" for help; CTRL/Z to end; or valid input. Which product(s) do you want to install? ccc Type "?" for help; CTRL/Z to exit Auto-Install; or valid input. Where are the update files located <PATCH$:>? Type "?" for help; CTRL/Z to skip this product; or valid input. Which device are the distribution files for CCC (CCC) located on (include colon) ? ms0: Products being installed: Device Product Task name ------ ------- --------- MS0: CCC (CCC) Determining system configuration. FATAL -- Auto-Install internal data structure corrupted; procedure aborting. Auto-Install ended at 18-Oct-26 01:47 AM. I don't have the documentation for C for RSTS/E so, what am I missing? Following this exact same process in RSX-11M+ works fine with the media for RSX. I have the RSTS/E manuals, just not the ones for the layered products. Thanks in advance for any help or pointers. - Peter