# Natural Startup Error:  35

**URL:** <https://techcommunity.softwareag.com/t/natural-startup-error-35/206437>\
**Category:** Forum\
**Tags:** Adabas-Natural, Adabas, Adabas-Basics-on-Linux-Unix-Windows, Adabas-on-Windows-UNIX, Adabas-on-Linux\
**Created:** [December 12, 2019, 8:18am UTC](https://techcommunity.softwareag.com/t/natural-startup-error-35/206437 "2019-12-12T08:18:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Luis\_Feigenblatt](https://avatars.discourse-cdn.com/v4/letter/l/e56c9b/32.png) [@Luis\_Feigenblatt](https://techcommunity.softwareag.com/u/Luis_Feigenblatt)\
**Post date:** [December 12, 2019, 8:18am UTC](https://techcommunity.softwareag.com/t/natural-startup-error-35/206437/1 "2019-12-12T08:18:29Z")

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Hello guys, I’m new to this forum as well as new to Adabas/Natural.  
this is my scenario. adabas/natural is running on HP-UX 11.31. It has been running for years fine.  
recently, they asked me to make a clone of the entire OS so they can have a mirror on another Datacenter.  
Adabas starts just fine, however, when trying to start natural, it shows this message:  
$ natdesa

```
    NATURAL V 6.3.12 PL 0 Software AG 2012

    Natural Startup Error: 35

    Internal WFC i/o terminal driver error.

```

Since I’m new to this DB, I don’t even know where the log files are located, and how to troubleshoot this error.  
I’d appreciate any help and reference links.  
Thanks in advance.  
Luis.

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<div class="post-metadata">

**Author:** ![Ralph\_Zbrog](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/ralph_zbrog/32/78_2.png) [@Ralph\_Zbrog](https://techcommunity.softwareag.com/u/Ralph_Zbrog)\
**Post date:** [December 12, 2019, 6:54pm UTC](https://techcommunity.softwareag.com/t/natural-startup-error-35/206437/2 "2019-12-12T18:54:58Z")

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Prior to invoking Natural, did you run (i.e. source) sagenv.new to set up the environment variables?

Does the existing system require a specific NATTERM environment variable setting that you are missing?

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\
**Post date:** [April 2, 2021, 3:43pm UTC](https://techcommunity.softwareag.com/t/natural-startup-error-35/206437/3 "2021-04-02T15:43:57Z")

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