Re: WD My Passport Studio

[Kris Tilford]

On Oct 15, 2012, at 1:03 PM, JHPArizona wrote:

I have to take exception to the statement that the GUI of  
applications is more capable or reliable or even as reliable than  
command line in terminal.


The Disk Utility GUI is just a wrapper for the identical same Terminal  
functions. If you're getting different results, something else is  
going on.


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Re: WD My Passport Studio

[JHPArizona]

On Saturday, October 13, 2012 9:56:02 PM UTC-7, Kris Tilford wrote:
>
> On Oct 13, 2012, at 11:34 PM, Les wrote: 
>
> > I have a new Western Digital My Passport Studio external USB/ 
> > Firewire drive for backup. Unfortunately this thing has been   
> > overwhelmingly problematic. It won't mount, Disc Utility can't fix   
> > it, and Disc Warrior hangs up while locating directory data. My CCC   
> > data is on this drive as it was meant to be my insurance when my   
> > main machine fumbled. I'm convinced the file structure is hosed so,   
> > I'm requesting help with UNIX commands in Terminal to attempt a fix.   
> > BTW my machine is a G5 1.8 DP, OS X 10.4.11 
>
> I don't think any Terminal commands are going to help, after all, Disk   
> Utility is just a GUI for fsck, so if Disk Utility fails, it's nearly   
> 100% certain anything you'd try in Terminal would also fail. 
>
> Since you have both USB & Firewire ports, you should be using Firewire   
> as your first choice option, and default connection. Firewire is   
> faster and much more stable than USB on Macs. If Firewire won't work   
> for you, then try USB. Tiger 10.4 is more problematic with some USB   
> chipsets than Leopard, so upgrading to Leopard might possibly help   
> with a USB connection? 
>
> You should note, there was a firmware update for the My Passport   
> Studio, and if you haven't applied this update, do this first before   
> trying anything else: 
>
>  
>
> In this download area, there is a "WD Universal Firmware Updater for   
> Mac" which I assume you might need, and also something called "WD   
> Macintosh +TURBO Drivers" which may be necessary? I suspect that once   
> you get the firmware updated, and the drivers (or Leopard update) you   
> may be able to repair any file system damage with Disk Utility? If you   
> can't get Disk Utility to work, the next level is Alsoft DiskWarrior,   
> and if DiskWarrior can't salvage it, the next level is ProSoft Data   
> Rescue 3, and the final level is a commercial data recovery service. I   
> suspect you can handle this with a firmware update, some drivers or   
> system update, and Disk Utility? I'd think DiskWarrior would certainly   
> be capable of salvaging this HD completely as possible, likely with   
> little or no data loss. 
>
> I have to take exception to the statement that the GUI of applications is 
more capable or reliable or even as reliable than command line in terminal. 
I have personally completed repairs in terminal that GUI interfaces failed 
to do so. In terminal I have usually found that there were so many errors 
that the GUI version just gave up. Numerous repeating of the GUI 
application will also tend to complete the repair as the number of errors 
decreases. 

All that being stated and understood, in all most all cases errors (except 
permissions) are reason for concern. It can indicate that the drive was 
unmounted improperly or power issues to the drive. Drives that are powered 
by the port are more likely to be damaged by improper drive removal. I 
prefer to use an external power source. 

You should have a solid understanding of terminal use and disk repair 
before attempting to diagnose and repair a disk in terminal.
The basic steps for terminal repair of a disk are:
diskutil list -> this shows all disks in the system and partitions and fs 
type of each partition
diskutil verifyVolume /Volumes/diskname or /dev/disk#
diskutil repairVolume /Volumes/diskname or /dev/disk#
diskutil verifyVolume /Volumes/diskname or /dev/disk#s#
diskutil repairVolume /Volumes/diskname or /dev/disk#s#

If that does not solve the problems and I suspect not since you have 
probably used the GUI tools already, then you need to run fsck. You will 
need to either have sudo rights or logged in as root. Do NOT run fsck on a 
mounted volume or you will most likely kill the fs on the volume. You will 
want to use the correct fsck program for the fs type. The two standard fsck 
program are fsck_hfs and fsck_msdos. You can install additional fsck 
programs if you need them.
fsck_hfs -q /Volumes/diskname or /dev/disk#s# -> this will tell you if the 
volume was cleanly unmounted
fsck_hfs -p /Volumes/diskname or /dev/disk#s# -> this will repair the most 
common problems but not all
fsck_hfs  /Volumes/diskname or /dev/disk#s# -> this will attempt to repair 
all problems that fsck can repair. This is interactive any requires you to 
sit there and repeatedly hit y to make the repair.  You can specify -y to 
automate the repair and what I normally use. You can also test a mounted 
volume with -l which will test but not make any repairs.

You should read the man pages before using any of the terminal tools. man 
fsck, man fsck_hfs, man diskutil.


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Re: WD My Passport Studio

[Valter Prahlad]

Il giorno 14-10-2012 6:34, Les ha scritto:

> I have a new Western Digital My Passport Studio external USB/Firewire
> drive for backup. Unfortunately this thing has been overwhelmingly
> problematic. 

I seem to remember that WD external drives are known to be somehow
problematic with Macs.
I think this is mentioned several times on CCC help sections, you may want
to check them out:
http://help.bombich.com/kb
http://help.bombich.com/discussions

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Re: WD My Passport Studio

[Kris Tilford]

On Oct 13, 2012, at 11:34 PM, Les wrote:

I have a new Western Digital My Passport Studio external USB/ 
Firewire drive for backup. Unfortunately this thing has been  
overwhelmingly problematic. It won't mount, Disc Utility can't fix  
it, and Disc Warrior hangs up while locating directory data. My CCC  
data is on this drive as it was meant to be my insurance when my  
main machine fumbled. I'm convinced the file structure is hosed so,  
I'm requesting help with UNIX commands in Terminal to attempt a fix.  
BTW my machine is a G5 1.8 DP, OS X 10.4.11


I don't think any Terminal commands are going to help, after all, Disk  
Utility is just a GUI for fsck, so if Disk Utility fails, it's nearly  
100% certain anything you'd try in Terminal would also fail.


Since you have both USB & Firewire ports, you should be using Firewire  
as your first choice option, and default connection. Firewire is  
faster and much more stable than USB on Macs. If Firewire won't work  
for you, then try USB. Tiger 10.4 is more problematic with some USB  
chipsets than Leopard, so upgrading to Leopard might possibly help  
with a USB connection?


You should note, there was a firmware update for the My Passport  
Studio, and if you haven't applied this update, do this first before  
trying anything else:




In this download area, there is a "WD Universal Firmware Updater for  
Mac" which I assume you might need, and also something called "WD  
Macintosh +TURBO Drivers" which may be necessary? I suspect that once  
you get the firmware updated, and the drivers (or Leopard update) you  
may be able to repair any file system damage with Disk Utility? If you  
can't get Disk Utility to work, the next level is Alsoft DiskWarrior,  
and if DiskWarrior can't salvage it, the next level is ProSoft Data  
Rescue 3, and the final level is a commercial data recovery service. I  
suspect you can handle this with a firmware update, some drivers or  
system update, and Disk Utility? I'd think DiskWarrior would certainly  
be capable of salvaging this HD completely as possible, likely with  
little or no data loss.


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WD My Passport Studio

[Les]

Hi,
I have a new Western Digital My Passport Studio external USB/Firewire  
drive for backup. Unfortunately this thing has been overwhelmingly  
problematic. It won't mount, Disc Utility can't fix it, and Disc  
Warrior hangs up while locating directory data. My CCC data is on  
this drive as it was meant to be my insurance when my main machine  
fumbled. I'm convinced the file structure is hosed so, I'm requesting  
help with UNIX commands in Terminal to attempt a fix. BTW my machine  
is a G5 1.8 DP, OS X 10.4.11

Cheers, Les

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