Re: su command failing on RHEL5

[Andreas Schwab]

Bob Proulx <address@hidden> writes:

> Sanjay Kumar wrote:
>> address@hidden ~]# su poo -c "cat /dev/tty"
>> cat: /dev/tty: No such device or address
>> ...
>> strace is showing below:
>> open("/dev/tty", O_RDONLY)              = -1 ENXIO (No such device or 
>> address)
>
> The su command appears to be working properly.  The problem shown
> above is that your system is missing the /dev/tty device node.

If the file were missing, you would get ENOENT.  ENXIO only means that
the underlying device does not exist.  That can either mean that
/dev/tty has the wrong device address (major/minor device number), or
that the process has no controlling terminal.

Andreas.

-- 
Andreas Schwab, address@hidden
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