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Unix to Linux conversion for Unidata 8.2

  • May 2, 2025
  • 6 replies
  • 0 views
K

Hello all - I'm sure this has been asked before but I couldn't find exactly what I was looking for... We are moving our Unidata 8.2 from Unix to Linux. I have been through such a conversion before some 15 years ago but thought others might have more recent recollection and encountered other issues.

Is there a list of specific potential pitfalls to check? 

Obviously the syntax of Unix commands changes to linux. Spoolers, FTP, emails, etc but what about any Unidata changes? I remember issues with the locate command... did others have that issue also? What other issues did you all find?

Thank you in advance for your time, consideration, and assistance.

Kathleen



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kathleen hambrick
Programmer
Rocket Forum Shared Account
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    6 replies

    Brian Paige
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    • Brian Paige
    • Participating Frequently
    • 63 replies
    • May 2, 2025

    Hello all - I'm sure this has been asked before but I couldn't find exactly what I was looking for... We are moving our Unidata 8.2 from Unix to Linux. I have been through such a conversion before some 15 years ago but thought others might have more recent recollection and encountered other issues.

    Is there a list of specific potential pitfalls to check? 

    Obviously the syntax of Unix commands changes to linux. Spoolers, FTP, emails, etc but what about any Unidata changes? I remember issues with the locate command... did others have that issue also? What other issues did you all find?

    Thank you in advance for your time, consideration, and assistance.

    Kathleen



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    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
    ------------------------------
    Hi Kathleen!

    Depending on how you're moving content between systems, you'll have to be conscious of the big-endian/little-endian differences. UV has the fnuxi command to convert files. I'm not sure what the equivalent would be in Unidata.

    Brian
    John Jenkins
    Forum|alt.badge.img+1
    • John Jenkins
    • Participating Frequently
    • 253 replies
    • May 2, 2025
    Hi Kathleen!

    Depending on how you're moving content between systems, you'll have to be conscious of the big-endian/little-endian differences. UV has the fnuxi command to convert files. I'm not sure what the equivalent would be in Unidata.

    Brian

    Brian/Kathleen,

    Program object code :convcode

    Data files: convdata

    Indexes: convidx

    If the files do not need conversion  between big-endian and little-endian then the commands just skip them,

    Regards

    JJ

    JJ



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    John Jenkins
    Thame, Oxfordshire
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    K

    Hello all - I'm sure this has been asked before but I couldn't find exactly what I was looking for... We are moving our Unidata 8.2 from Unix to Linux. I have been through such a conversion before some 15 years ago but thought others might have more recent recollection and encountered other issues.

    Is there a list of specific potential pitfalls to check? 

    Obviously the syntax of Unix commands changes to linux. Spoolers, FTP, emails, etc but what about any Unidata changes? I remember issues with the locate command... did others have that issue also? What other issues did you all find?

    Thank you in advance for your time, consideration, and assistance.

    Kathleen



    ------------------------------
    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
    ------------------------------

    I'm not looking for information on the data move - I'm looking for any unidata program changes that need to be made in the business logic.

    Thanks all,

    Kathleen



    ------------------------------
    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
    ------------------------------
    Kevin King
    • Kevin King
    • Participating Frequently
    • 53 replies
    • May 6, 2025

    I'm not looking for information on the data move - I'm looking for any unidata program changes that need to be made in the business logic.

    Thanks all,

    Kathleen



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    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
    ------------------------------
    Generally, the Unidata stuff itself doesn't usually require much. However,
    where you're reaching out to do OS-level commands for printer management,
    faxing, etc., those will need to change to the print manager on Linux,
    usually CUPS.

    For example, if you're using enable or disable in Unix to enable or disable
    print queues, those commands change to cupsenable and cupsdisable for
    CUPS. You can still use enable and disable with symlinks and full path
    references, but it's just as easy to change from enable/disable to
    cupsenable/cupsdisable.

    Moving to Linux from AIX in particular, spooler management is quite
    different. How you create printers, manage printers, all that is quite
    different. But once you're inside of Unidata, I don't think you'll need to
    change much if anything at all.


    *Kevin King, President*
    Precision Solutions, Inc.
    Phone: 303-651-7050 Fax: 720-442-9204
    Kevin@PrecisOnline.com | https://www.PrecisOnline.com

    C
    • Chadley Dumond
    • New Participant
    • 1 reply
    • May 7, 2025

    I'm not looking for information on the data move - I'm looking for any unidata program changes that need to be made in the business logic.

    Thanks all,

    Kathleen



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    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
    ------------------------------

    We recently went through a conversion from HPUX to Red Hat Enterprise Linux (RHEL).  Insofar as UD programs were concerned, we mainly needed to identify those places where we might shell out or execute unix commands from a UD program or subroutine and adjust them accordingly.  For us, most of the commands functioned the same on both, and there were some that functioned similarly (may have different options, etc).  I've uploaded a spreadsheet that includes the investigation results of the commands we have used--it's not a complete list, just the ones I know about, FWIW.



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    Chadley Dumond
    Rocket Forum Shared Account
    Woonsocket NY US
    ------------------------------
    K

    We recently went through a conversion from HPUX to Red Hat Enterprise Linux (RHEL).  Insofar as UD programs were concerned, we mainly needed to identify those places where we might shell out or execute unix commands from a UD program or subroutine and adjust them accordingly.  For us, most of the commands functioned the same on both, and there were some that functioned similarly (may have different options, etc).  I've uploaded a spreadsheet that includes the investigation results of the commands we have used--it's not a complete list, just the ones I know about, FWIW.



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    Chadley Dumond
    Rocket Forum Shared Account
    Woonsocket NY US
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    thank you



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    kathleen hambrick
    Programmer
    Rocket Forum Shared Account
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