On 2015-02-11 20:27, Cory Smelosky wrote: Coming today: Images of SC-40 boot drives assuming they weren't 36-bit low-level I don't think they are, but Peter Lothberg should have all the details, since he already have an SC40 on HECnet... The SCSI drive that is used for boot is formatted with 2304 byte sectors, and has a T20 file system. The "FE are" is not used. --P (one sector=1 pdp10 page)