[R-SIG-Mac] similar problems installing Rcmdr with R.

[Simon Urbanek]

On Sep 24, 2013, at 8:34 PM, John Fox <jfox at mcmaster.ca> wrote:

> Dear Mark,
> 
>> -----Original Message-----
>> From: Hebblewhite, Mark [mailto:Mark.Hebblewhite at umontana.edu]
>> Sent: Tuesday, September 24, 2013 12:32 PM
>> To: John Fox
>> Cc: r-sig-mac at r-project.org
>> Subject: Re: [R-SIG-Mac] similar problems installing Rcmdr with R.
>> 
>> Yes, the solution proposed by Rodney Sparapani below worked to fix my
>> problem, but was a slightly different command than proposed to Sarah
>> earlier.
>> 
>> 
>> Thanks very much Rodney! It will be challenging to fix this problem,
>> however, for other 'naïve' users of MAC if the solution is different
>> each
>> time.
>> 
> 
> Just to be clear:
> 
> 	sudo chmod a+rx /usr/local/*
> 
> didn't work, but
> 
> 	sudo zsh
> 	chmod -R 755 /usr/local
> 
> did work?
> 


The later is bad, do NOT use it! It will set exec permissions on *everything* even files are are not supposed to be executable.
You probably want

sudo chmod -R a+rX /usr/local

Cheers,
Simon



> Frankly, I don't get that, since the first command should insure that
> everyone has (at least) read and execute permission (i.e., level 5).
> 
> I think that I'll add a trouble-shooting section to the Rcmdr Mac
> installation notes, but I would like to understand why one approach worked
> here and not the other.
> 
> Best,
> John
> 
>> Thanks very much John, Simon and Rodney!
>> 
>> On 09/24/2013 07:45 AM, Hebblewhite, Mark wrote:
>>> 7. From previous posts on this list serve
>>> [http://grokbase.com/t/r/r-sig-mac/138nv3tj17/unable-to-load-rcmdr-
>> with-r-
>>> 3
>>> -0-1-on-a-mac-os-x-10-8-3] I followed this set of instructions to see
>>> whether there were problems with my permissions:
>>> 
>>>>> system("ls -ld /usr/local /usr/local/lib /usr/local/lib/libtcl*")
>>> ls: /usr/local/lib: Permission denied
>>> ls: /usr/local/lib/libtcl*: Permission denied
>>> drwx------  8 root  wheel  272 Sep 24 10:21 /usr/local
>>> 
>>> 
>>> 8. But in my disk utilities I can see no clear disk permissions
>> related to
>>> R. I ran repair disk permissions earlier today and there was 1 R
>> problem
>>> but that¹s been apparently fixed.
>> 
>> Hi Mark:
>> 
>> I am assuming you came to Mac from Windows, rather than UNIX/Linux,
>> right?  On Mac OS X (and UNIX/Linux in general), you need to have
>> permission to read/write/execute files.  But, I think you can fix
>> this rather easily.  In a terminal...
>> % sudo zsh
>> # chmod -R 755 /usr/local
>> 
>> 
>>> 
> 
>