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Guest juxx

Unable to open ttyS0: No such file or directory

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Guest juxx

Hi all,

trying to start UPS service with:

service upsd start

 

I allways get this output:

 

NUT Starting UPS model drivers: Network UPS Tools - Generic SafeNet UPS driver 0.03 (2.0.0)

Unable to open ttyS0: No such file or directory

Things to try:

- Check 'port=' in ups.conf

- Check owner/permissions of all parts of path

 

Network UPS Tools (version 2.0.0) - APC Smart protocol driver

Driver version 1.99.6, command table version 2.0

 

Unable to open ttyS1: No such file or directory

Things to try:

- Check 'port=' in ups.conf

- Check owner/permissions of all parts of path

 

Network UPS Tools - UPS driver controller 2.0.0

Fatal error: unusable configuration

Driver failed to start (exit status=1)

Fatal error: unusable configuration

Driver failed to start (exit status=1)

[FAILED]

NUT Starting UPS daemon: [ OK ]

 

Waht can I do to solve?

Thanks in advance.

 

juxx

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Check file /etc/ups/ups.conf

 

You probably have a line that says:

 

port = ttyS0

 

Change that to:

 

port = /dev/ttyS0

 

You will probably need to edit the file as the root user.

 

I remember having this very same error message when I set up my ups, until I changed the line to: port = /dev/ttyS0

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Guest juxx

well...

changing ttys0 in ups.conf to /dev/tty0

i get:

NUT Starting UPS model drivers: Network UPS Tools (version 2.0.0) - APC Smart protocol driver

Driver version 1.99.6, command table version 2.0

Unable to detect an APC Smart protocol UPS on port /dev/tty0

Check the cabling, port name or model name and try again

Network UPS Tools - UPS driver controller 2.0.0

Driver failed to start (exit status=1)

[FAILED]

NUT Starting UPS daemon: [ OK ]

 

but: first (only by me) serial is ttyS0 or tty0?

 

juxx

Edited by juxx

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Guest juxx

thank you jboy...

 

now problem seems to be ups model.

 

I'll try to change it.

 

thanks

juxx

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Don't know why you wouldn't have /dev/ttyS0, which is serial port 1.

 

Issue the following command: dmesg | grep tty

 

When I do that, I get:

 

ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

 

Gotta go. Heading out for the weekend. Post what you get from the dmesg command, and somebody should be able to help you.

 

Good luck with it.

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