Permission Denied and AppArmor Denial

[Ted Gould]

Hard to say from just your email, if you could post the files somewhere
that would be helpful. My guess would be that the shell script isn't
marked as executable. You can change that before building the snap by
using "chmod +x hello". You might also check that you put the hello
script in the bin directory of the snap. Lastly I'd look at your #! to
ensure that you're using an interpreter that is installed on the system.

HTH,
Ted

On Mon, 2015-10-26 at 17:32 -0700, robert_joslyn at selinc.com wrote:

> I'm trying to get a simple hello world snap working, but I'm getting a 
> permission denied error when trying to run the program.
> 
> (amd64)ubuntu at localhost:~$ hello.hello
> execv failed: Permission denied
> 
> It seems that AppArmor is blocking this, as this message appears in the 
> kernel log:
> 
> Oct 26 23:48:11 localhost kernel: [  655.094769] audit: type=1400 
> audit(1445903291.119:15): apparmor="DENIED" operation="getattr" 
> info="Failed name lookup - disconnected path" error=-13 
> profile="/usr/bin/ubuntu-core-launcher" name="dev/pts/0" pid=1001 
> comm="ubuntu-core-lau" requested_mask="r" denied_mask="r" fsuid=1000 
> ouid=1000
> 
> My package.yaml is:
> name: hello
> version: 0.0.1
> vendor: none
> 
> binaries:
>  - name: bin/hello
> 
> The hello binary is simply a shell script that prints hello world. I'm 
> creating the snap with snappy build, but making it with snapcraft results 
> in the same error (except it triggers on the wrapper). I've also tried 
> setting security-template to unconfined, but still get the same error. Any 
> thoughts as to what I'm doing wrong here? 
> 
> Thanks,
> 
> --
> Robert Joslyn
> Software Engineer, R&D - Automation
> Schweitzer Engineering Laboratories
> 509-332-1890 ext. 3214
> 



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