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Re: [ecs] Fwd: need help w linux issue Mark Gilmore Thu, 20 Sep 2007 19:17:26 -0400

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but the execute bits *are* set for the pgms, it's directory, and 
*all* it's parent directories.
this includes the directory that was mounted (/mount/disk) and /mount.

At 07:03 PM 9/20/2007, you wrote:
>Mark Gilmore wrote:
>>hi neil,
>>the execute bits *are* set.
>
>But that doesn't mean you can execute it. Really it has more to
>do with the mount point. Instead of joking around I'll explain
>better below.
>
>>it appears that the mount access settings differ from that of the 
>>directory being mounted.
>>*very* weird.
>
>Actually very normal for Unix. Here's an example:
>
>$ mkdir -p a/b/c # This makes all 3 dirs with drwxrwxr-x
>$ cp bin/ansi.color.sh a/b/c/
>$ ls -l bin/ansi.color.sh a/b/c/
>-rwxrwxrwx 1 njc njc 1123 Nov  5  2006 bin/ansi.color.sh
>
>a/b/c/:
>total 4
>-rwxrwxr-x 1 njc njc 1123 Sep 20 18:52 ansi.color.sh
>$ chmod a-x a/b # Turn off the execute permissions to everyone
>$ ./a/b/c/ansi.color.sh
>-bash: ./a/b/c/ansi.color.sh: Permission denied
>$ bin/ansi.color.sh
>----------------------------------------------------------------
>ESC[0;Foreground;Background -
>         :
>         :
>
>Then the rest of my shell script output. Basically if the
>permissions aren't set at the lower levels then the program
>can't be executed. In this case the noexec tells mount not to
>set the execute bits at the mount point. Actually my description
>is a bit abbreviated as the whole permission thing is a lot more
>complex and I don't understand all the details.
>
>--
>Linux Home Automation         Neil Cherry       ncherry@linuxha.com
>http://www.linuxha.com/                         Main site
>http://linuxha.blogspot.com/                    My HA Blog
>Author of:      Linux Smart Homes For Dummies

Mark Gilmore
http://OmnipotenceSoftware.com

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