Question

Is there any change in the syntax of the launchd (LaunchDaemons) files from iOS 5.x to iOS 6.1?

I tried to install somethingfrom my iOS 5.1 iPhone4s to the iPhone5 (running iOS 6.1 JB with Evasi0n) and it gives me this error (in /var/log/syslog):

com.apple.launchd[1] (com.mydom.myScrpt[2601]): (com.mydom.myScrpt) Exited with code: 1

And it’s not a “myScrpt” problem, because I change myScrpt to:

#!/bin/sh
echo "----Test---"

but the only thing in /var/log/syslog was the error and nothing else
(doing the same in my iPhone4s, prints the "----Test---" line).

The syntax of my launchd file (that runs myScrpt at 14:00 as root) is

{
    Label = "com.mydom.myScrpt";
    LowPriorityIO = 1;
    Nice = 9;
    ProgramArguments =     (
        "/private/var/root/bin/myScrpt"
    );
    StartCalendarInterval =     {
        Hour = 14;
        Minute = 00;
    };
    UserName = root;
}

What am I doing wrong? How should I write my launchd file to run my command at 14:00?

Answer 1

Add on your launchd file this:

<key>StandardOutPath</key>
<string>/var/log/syslog.mine</string>

to get the output of your script.

This is probably the “change” from iOS5 to iOS6.
Now you have to specify the output, ‘syslog’ is not used by default.