topic Re: /dev/pipe7 file not found in Operating System - HP-UX

/dev/pipe7 file not found

Mahima Kaushik_2 — Thu, 16 May 2002 12:33:27 GMT

One of our client is trying to run an OMEGA job (It???s a COTS Product) on a 9000/C3600 with HP-UX 11.0 DEC 2001 (64bit). This product runs on other machine that has HP-UX 10.20 with no error but in this machine it gives an error that ???/dev/pipe7 file not found???. We do not have any file like this on our 11.0 but in our 10.20 workstations we have this file with following permissions:

prw-rw-r-- 1 root sys 0 Dec 17 1998 /dev/pipe7

We are unable to ftp this file to our 11.0 machine and also when we do more on it says it is FIFO file. I wonder how this file can be generated on our 11.0 host.

Any idea or help is appreciated.
Mahima

Re: /dev/pipe7 file not found

Volker Borowski — Thu, 16 May 2002 12:40:29 GMT

Hello

mknod /dev/pipe7 p

should work.
Chown, chgrp, chmod after creation

Hope this helps
Volker

Re: /dev/pipe7 file not found

A. Clay Stephenson — Thu, 16 May 2002 12:40:49 GMT

This is a named pipe.
mkfifo -m 664 /dev/pipe7
chown root:sys /dev/pipe7

Man mkfifo for details.

You can also use the mknodd command to do this:
mknod /dev/pipe7 p
chmod 664 /dev/pipe7
chown root:sys /dev/pipe7

Man 1m mknod for details.

Re: /dev/pipe7 file not found

Mahima Kaushik_2 — Thu, 16 May 2002 12:46:59 GMT

Hi
Thanks for quick responses. It worked. Now I have to test it and see if we still get that error.
Mahima