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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!nucsrl!ddsw1!inland!cmkrnl!infopiz!mark
- Newsgroups: vmsnet.internals
- Subject: RE: PATCH on ALPHA ?
- Message-ID: <1992Sep4.135207.15155@infocomm.com>
- From: mark@infocomm.com
- Date: 4 Sep 92 13:52:07 PDT
- References: <9209021225.AA14429@sndsu1.sinet.slb.com>
- Organization: INFO COMM - Computer Consulting, Redwood City, Ca
- Lines: 34
-
- In article <9209021225.AA14429@sndsu1.sinet.slb.com>, brydon@dsny25.sinet.slb.com writes:
- > You gotta be kidding!! All of the CSCPAT_nnnn kits (all of them!) are
- > VMSINSTAL savesets that Patch an image. Almost everything that is done in a
- > VMS0nn, VMSMUPnnn and VMSUxnnn kit consists of patches. If DEC is getting
- > away from the use of the PATCH utility, then every single itty bitty VMS
- > release and subrelease will become huge. Can this be real?
-
- Come on, this is really only a problem if you get your updates on TU58's!
-
- Since normal distributions come on CDROM and/or TK50's this will not impact the
- number of pieces of media. Since the "speed" of a VMSINSTAL driven
- installation is essentially limited by the NUMBER of "updates" or "files"
- applied (unless special techniques are used) and NOT the size of these, then
- the time to install these is also not seriously affected.
-
- Actually, I just did a survey of the 12 CSCPATs that I happen to have lying
- around in my DSN$COPY_DIRECTORY and these contained some 33 replacement images
- and only 1 use of patch.
-
- I don't have time to dig into the recent VMSUxnnn and VMSMUPnnn kits, but I
- seem to recall that the recent ones (after VMS V5.0) were usually replacement
- images rather than patching anyway. In the old days when update media was
- smaller there certainly were better reasons to keep the size of the update
- down.
-
- These are NOT arguments against the usefulness of PATCH. I agree with Bruce
- and Hunter that it certainly has an important role as a tool. I do see
- that given the priorities of the Alpha VMS migration, PATCH was not a
- development tool and hence not on the critical path for deployment.
-
- --
- Mark Pizzolato - INFO COMM Computer Consulting, Redwood City, Ca
- PHONE: (415)369-9366 UUCP: decwrl!infopiz!mark or uunet!lupine!infopiz!mark
- DOMAIN: mark@infocomm.com
-