Image Map Image Map
Results 1 to 8 of 8

Thread: Maintenance Documentation Service

  1. #1

    Default Maintenance Documentation Service

    I ordered a part for my PDP-11 and the seller included two sets of CDs titled: "Maintenance Documentation Service on CD-ROM".

    The only issue is that the CD-ROM sets are formatted for openVMS and the search program included is for openVMS. Windows nor Linux (Ubuntu) recognize the disks. I did find a kernel module for Linux that can read ODS-2 and 5 (https://github.com/RomanHargrave/linux-ods5 http://www.vms2linux.de/ods5fs.html). I also found a program for windows that says it can read openVMS files, but I could not figure out how to use it with the CD (http://vms.process.com/scripts/files...eserv.com?ODS2). Has anybody had any luck with either of these? I'm wanting to read these disks because they might have some helpful documents for the process of restoring my PDP-11/44.

    Any suggestions would be appreciated.

    (If there would be a better place to post this please let me know or move it. Since it's DEC specific I thought it would fit here.)

  2. #2
    Join Date
    Dec 2012
    Location
    Colorado
    Posts
    226
    Blog Entries
    1

    Default

    Maybe have a look at this online version? https://manx-docs.org/collections/mds-199909/ Although this might not have PDP-11 stuff.
    Last edited by cruff; July 4th, 2020 at 06:24 PM. Reason: Added qualification

  3. #3

    Default

    I'll definitely take a look through this. Thank you.

  4. #4
    Join Date
    Sep 2016
    Location
    Westminster, Colorado
    Posts
    48

    Default

    I used the ods2 program ~15 years ago to unpack a couple VMS CDROMs, and I remember doing some hacking on it though not the reasons why.

    If I get the time this week I'll setup a github repo and populate it with my changes.

    CW

  5. #5
    Join Date
    Feb 2011
    Location
    NorthWest England (East Pondia)
    Posts
    2,426
    Blog Entries
    10

    Default

    Quote Originally Posted by Old Computers View Post
    I ordered a part for my PDP-11 and the seller included two sets of CDs titled: "Maintenance Documentation Service on CD-ROM".

    The only issue is that the CD-ROM sets are formatted for openVMS and the search program included is for openVMS. Windows nor Linux (Ubuntu) recognize the disks. I did find a kernel module for Linux that can read ODS-2 and 5 (https://github.com/RomanHargrave/linux-ods5 http://www.vms2linux.de/ods5fs.html). I also found a program for windows that says it can read openVMS files, but I could not figure out how to use it with the CD (http://vms.process.com/scripts/files...eserv.com?ODS2). Has anybody had any luck with either of these? I'm wanting to read these disks because they might have some helpful documents for the process of restoring my PDP-11/44.

    Any suggestions would be appreciated.

    (If there would be a better place to post this please let me know or move it. Since it's DEC specific I thought it would fit here.)
    You install VMS under SIMH, make images of the disks with Linux DD and then install the software from the CD's. You might have a minor challenge as DEC stopped issuing hobbyist licences for OpenVMS VAX but it will run single user without one.

    If the files are DEC Bookshelves you will find windows software to read them on VaxHaven http://vaxhaven.com/CD_Image_Archive you need BNU which will be on the ISO formatted documentation disks there.
    Dave
    G4UGM

    Looking for Analog Computers, Drum Plotters, and Graphics Terminals

  6. #6
    Join Date
    Sep 2016
    Location
    Westminster, Colorado
    Posts
    48

    Default

    Quote Originally Posted by Bitly View Post
    I used the ods2 program ~15 years ago to unpack a couple VMS CDROMs, and I remember doing some hacking on it though not the reasons why.

    CW
    The main bug in the released version of ods2 is a pair of lines:
    Code:
    #ifdef BIG_ENDIAN
    Since BIG_ENDIAN is define in the Linux system libraries, this cause mounts to fail. Changing the keyword BIG_ENDIAN to something else fixes the issue.

    CW

  7. #7

    Default

    Thank you all for the suggestions.

    I will definitely look into both ways to do this.

    @Bitly: So just change the keyword BIG_ENDIAN to something like BIG_ENDIAN_ERROR_FIX would work?

  8. #8
    Join Date
    Sep 2016
    Location
    Westminster, Colorado
    Posts
    48

    Default

    Quote Originally Posted by Old Computers View Post
    @Bitly: So just change the keyword BIG_ENDIAN to something like BIG_ENDIAN_ERROR_FIX would work?
    Yes. I'm still working on a repo, but the other changes are more QOL stuff, but Linux only (mount images instead of drives, caching of directory sectors, hierarchical output directories)

    CW

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •