There are several DOS/360 installation distributions available; many of them have been posted to the legacy Yahoo group content available at H390-DOSVS@groups.io (direct link to the files section). Those installation distributions formed the core of the procedures shown here.
Kevin Leonard developed a 2311-based distribution named DOS360-2311 in two zip files; find it in the DOS-360 26.2 folder in the files section of H390-DOSVS.
Ben Huntsman, Yahoo group user korperlich, provides DIY-DOS360 in the Files section of H390-DOSVS, which includes lots of detail and is one of the distributions that converts a 2311 system residence into a 2314 system residence using the CONV2314 utility.
Bill Carlborg, Yahoo group user wjckjc822, has also posted a downloads containing an installation procedure, His instructions also use CONV2314 to convert a 2311 system residence to 2314. Bill has posted fixes for COBOL and ISAM, and a number of sample programs; find these in the Files section of the H390-DOSVS Yahoo group. He has also posted optional (source) material for nearly all of DOS/360 26.2 and his posts are worth a look.
Bill Carlborg's correction for ISAM logic module errors is applied in this procedure in step SYSGEN09. Bill also found and provided a fix for ANS COBOL, which without the fix will generate incorrect code when compiling a COBOL subroutine with option XREF; step SYSGEN03B applies that correction.
I have converted Bill's sample programs to 2314 and used them as a further installation verification step for this DOS/360 installation procedure. The converted programs are included in the demo folder of this site's installation files, and Hercules scripts to run the demo programs are provided in the rc folder. Any errors you encounter in the demo programs are likely the result of my conversion efforts and not faults in Bill's original coding.
These installations provided structure, ideas, and links to primary sources for installation media for DOS/360 26.2. This web site would not exist without the information they provided. (I welcome corrections and additions to this list, and am especially happy to give credit where such is due.)
But the inspiration for this web site was Jay Moseley's tutorial MVS installation web site:
http://www.jaymoseley.com/hercules/.
Two thirds of my career in IT was working with DOS and its successors, and IBM made very certain that DOS users had OS envy. In retrospect, the effort IBM put into getting DOS users to migrate to OS should have told me they expected to make money on the deal. From a professional perspective, though, I was always curious about what it would have been like to be an MVS Systems Programmer.
I learned a great deal about installing and using MVS 3.8j from Jay's site, and I got a good sense of how much of the history of DOS/360 could be included in an installation process from his site. (Thanks, Jay.)