Rolf; 

I think you should check whether reformatting is really necessary. My understanding is that Disk Utility will allow repartitioning and one can choose a disk format at the time that a new partition is created. 

-- 
David Winsemius 

----- Original Message ----- 
From: "Kasper Daniel Hansen" <khansen@stat.berkeley.edu> 
To: "Rolf Turner" <r.turner@auckland.ac.nz> 
Cc: r-sig-mac@stat.math.ethz.ch 
Sent: Thursday, February 19, 2009 7:56:49 PM GMT -06:00 US/Canada Central 
Subject: Re: [R-SIG-Mac] Case distinction on a Mac. 

It is pretty easy, you just need to reformat your mac (and therefore 
move everything of it, as well as re-installing everything). When you 
reformat you will be asked what file system you want, so it is in 
principle dead easy. 

Some mac software needs HFS though, at least as far as I understand. 

Kasper 

On Feb 19, 2009, at 16:52 , Rolf Turner wrote: 

> 
> On 20/02/2009, at 1:28 PM, Steve Revilak wrote: 
> 
>>> From: Rolf Turner <r.turner@auckland.ac.nz> 
>>> Date: Fri, 20 Feb 2009 12:47:46 +1300 
>>> Subject: [R-SIG-Mac] Case distinction on a Mac. 
>> 
>>> I have noticed that OS X sometimes fails to make a case 
>>> distinction in 
>>> the names of files. E.g. if I have a file ``junk'' and I try to 
>>> create 
>>> a directory using ``mkdir Junk'' it will refuse to do so saying 
>>> ``file 
>>> exists''. 
>>> 
>>> Likewise I have just noticed that in R 
>>> 
>>> file.exists(".Rdata") 
>>> 
>>> returns TRUE when no file .Rdata exists (but there *is* a 
>>> file .RData). 
>>> 
>>> This strikes me as an undesirable, uh, feature. Is there any way 
>>> that 
>>> I can tell OS X to smarten up about this? 
>> 
>> Out of the box, OS X filesystems are formatted as HFS+, which is case 
>> insensitive (but case preserving). 
>> 
>> There is are variants of HFS+ that are case sensitive; Disk Utility 
>> refers to them variant as "Mac OS Extended (Case Sensitive)" and "Mac 
>> OS Extended (Case Sensitive, journaled)". 
>> 
>> If you'd like the file system to be case sensitive, you'll need to 
>> format the drive that way. 
> 
> Oooooohhhh boy! That sounds way beyond my (very limited) 
> capabilities. 
> 
> Thanks anyway. 
> 
> cheers, 
> 
> Rolf Turner 
> 
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