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

[John Fox]

Dear Simon,

> -----Original Message-----
> From: Simon Urbanek [mailto:simon.urbanek at r-project.org]
> Sent: Wednesday, September 25, 2013 2:30 AM
> To: John Fox
> Cc: 'Hebblewhite, Mark'; r-sig-mac at r-project.org; 'Rodney Sparapani'
> Subject: Re: [R-SIG-Mac] similar problems installing Rcmdr with R.
> 
> 
> 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

Yes, that's better than what I had in the troubleshooting section of the
Rcmdr installation notes, which was 

  sudo chmod -R a+rx /usr/local

and which, as you say, would set execute permission for files as well as
directories. I've fixed that now.

When I first read Mark's message, I didn't realize that there were
subdirectories below /usr/local that might also have incorrectly set
permissions.

Thanks,
 John

> 
> 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
> >>
> >>
> >>>
> >
> >