Target Disk Mode no longer working

I've never had any problems connecting my PB G4 to my desktop G4 in target disk mode until today. The PB simply starts up in the Mac OS and doesn't appear on the host computer.
I haven't changed anything. I checked the firewire cable on another device and it's fine. Only thing that's happened since I last connected was I travelled with the PB and played lots of DVDs on my trip. Can't imagine that would have done anything...but even after repairing permissions on both PB and host computer--it's still not working!
Any ideas? Can the firewire port on the PB be damaged somehow? Many thanks for any suggestions.

Resetting the PMU might light the firewire port back up.
http://docs.info.apple.com/article.html?artnum=14449
Joe

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Boot up from target disk mode doesn't work. (Why?)

I have a 2010 Macbook Pro, and a 2013 iMac. I connected the Macbook pro with the firewire cable to the iMac, and enabled target disk mode on the laptop. (It is successful because I see the hard drive appear on the iMac desktop.
I restart the iMac and hold 'option' to show the hard drive list, and sure enough the Mac Book Pro hard drive appears. I select it, and this lovely icon greets me.
From this point, I have no idea what to do.
Would you happen to know why it doesn't work and/or how to fix it?

I am able to do that... this is not the problem.
I have seen people boot up from the hard drive using target disk mode. When I try to do it, it doesn't work. Does this feature still exist?

Help: Windows XP on MacBook Pro Boot Camp Partition via Target Disk Mode

Firstly, let me lay out my situation. I have an old MacBook Pro (2,2) with a broken disk drive. It was dropped in its youth and can no longer read from or write to CDs or DVDs of any kind. I have just recently bought a new MacBook Pro to replace it (6,2) and am currently trying to convert the old computer into an XP machine through Boot Camp. I'd like to be able to do so without having to buy an external disk drive.
After a clean install of OS X (10.6.3) onto the old machine, I successfully partition 85GB of space (although I previously attempted the same with a 32GB file system to no avail as well) for XP to be installed upon. Because I cannot boot my XP install disk directly from the broken disk drive, I then close Boot Camp Assistant and shut down the computer. I start it up in Target Disk Mode to be accessed from the new MacBook (6,2).
Once the old MacBook is connected, I insert my XP install disk into the new MacBook (6,2) and boot from the disk. After allowing the XP (Professional) boot to load the install files, I arrow-key down to my 85GB partition (FAT32, named standard as "BOOTCAMP") on the old MacBook (2,2)'s hard drive and select it as the partition I would like to install to. This is where I am directed to a new boot window that tells me in a series of paragraphs that the XP installer cannot reach the selected partition for what seems to be a number of reasons. What it seems to be trying to say to me is that it cannot do a remote install of XP on a Target Disk Mode-connected machine, while not "knowing" that I am trying to do so. It's a similar message to the one that Boot Camp Assistant shows when one tries to create a Boot Camp partition on a machine that is being accessed via Target Disk Mode (Apple puts it much more clearly than Microsoft).
I'd be perfectly content, albiet slightly vexed, to conclude here that it is not possible, shuttle over to the nearest Best Buy, and purchase an external disk drive if it weren't for one thing: I tried the same thing two weeks ago with Ubuntu 10.10 and it installed perfectly on the Boot Camp partition I had created then (I have since wiped all and installed OS X cleanly on the laptop).
Here comes the point/questions:
If the Ubuntu boot disk can access the partition, why can't the XP boot disk?
Is there some way to convince the boot system that the drive is local, rather than being accessed via Target Disk Mode?
Is there an easy solution that doesn't even require that, and will allow me to install to the disk over a firewire connection?
If anyone's knowledgeable and/or brave enough to tackle this one, I'll be eternally grateful. Heck, I'll be grateful if anyone even attempts to tackle it.
Thanks,
-Alec Page

Windows XP will only install from the optical drive. Target Disk Mode does not work with Windows volumes. Windows will not install from any external device.

Firewire Target Disk Mode - Secondary Internal HDD?

Hello great collective of knowledge.
Does anyone know if there is a way to target the secondary internal hard disk in Firewire Target Disk Mode?
Thanks,
Clint

FireWire Target Disk Mode will only work with the master Ultra ATA drive. To access other drives, change the position of them in the computer or use File Sharing, with SharePoints if necessary.
(23400)

Firewire target disk mode install leopard

Does anyone know if it is possible to install Leo via dvd to another computer booted in target disk mode?
My work computer somehow lost some important OS files during an system update, and now I can't get past single user mode, nor can I seem to boot from CD (although I haven't tried in awhile, may not have had a bootable disk at the time). What I want to do is wipe the HDD, and install the OS.

Leopard OS Disks are universal (ppc and intel), so it was irrelevant to include that information.
No it wasn't. I see many posts where people are trying to use installer discs that come with another computer to install the OS on a second model. TDM is a popular way of trying that. Since you did not provide full information in your question as to which discs you had I could not rule this out.
You also don't say anything about the computer models, which would help in answering your questions. The question immediately comes to mind, why don't you just boot from the installer DVD?
Anyway, put the newer computer into TDM with the two connected, you should hopefully be able to see the DVD in the drive on the TDM computer and select it as a startup disk on the older computer. Another way is to hold down the option key while booting, but some computers don't have that capability.
Message was edited by: Limnos

Target Disk Mode, dragging files, can't do singular file, batches always -1

This definitely seems silly:
Using: PowerPC G5 and Macbook Core2Duo
I connect the two via firewire, the Macbook in Target Disk Mode. Everything works fine. The Macbook goes into Target Disk Mode flawlessly, and my Macbook's hard drive, Belle, shows up on the PowerPC G5 flawlessly. Which is a dream.
The silly thing I've discovered is that I can't drag a single file (one at a time) from the Macbook to anywhere on the PowerPC hard drive. Instead of a beautiful green gem with a positive symbol on it, I get a white circle with a slash through it.
It doesn't sound silly (though still a problem), but if I drag two or more files, I'll get the green gem with a positive symbol. Silly. But, even sillier, it won't transfer the last file. For example, if I drag IMG 01, IMG 02, IMG 03, IMG 04 all at once, IMG 04 won't transfer, but the other three will.
Maybe this is extremely common and perhaps not even silly but logical, but it's beyond me right now. Any solution?
Macbook core2duo, PowerPC G5 Mac OS X (10.4.9) firewire, target disk mode

I don't have an explanation or solution to this problem - but I'd use 'personal file sharing' instead of Target Disk mode. It's probably slower, but doesn't require any rebooting.

Target Disk Mode - Multiple Drives

I bought a new mac and want to take the info off my old Power Mac G4 867 MDD. I started it up in target disk mode but i only see ones of the 3 drives.
How can I see all the drives in the machine
Thanks

FireWire Target Disk Mode will only work with the master Ultra ATA drive. To access other drives, change the position of them in the computer or use File Sharing, with SharePoints if necessary.
(23397)

Can I install FROM a working iMac TO an iMac in Target Disk Mode?

Hi.
I have a distressed iMac - it's in Target Disk Mode (the Firewire logo is on its screen), and it's hooked up to another iMac. I can see and navigate to the distressed Mac's hard drive via the good one. Can I insert the SL install disk on the good mac and install it on the bad one? I've tried the other way...but the distressed iMac stalls out when booting the install disk visa-versa.
The distressed iMac's internal optical drive is dead, and for some reason it WILL NOT recognized an external firewire/usb optical drive.
Thanks.

Sure, the working mac should see the other one as a firewire connected hard drive, nothing more - so long as the working one is an intel, and the target drive is partitioned suitably; 10.6 ought to install no problem.

How do i use my imac 21.5" 2011 as a display for my macbook pro late 2011, through thunderbolt cable ? I have tried and it doesnt seem to work, neither does target disk mode.

How do i use my imac 21.5" 2011 as a display for my macbook pro late 2011, through thunderbolt cable ? I have tried and it doesnt seem to work, neither does target disk mode.
Could it be a borked cable ? I just bought it new from the store today, i have updated both imac and macbook pro to latest thunderbolt firmware and updates. Both 10.7.3.
MacBook Pro:
Vendor Name:    Apple, Inc.
Device Name:    MacBook Pro
UID:    0x0001000A17016E60
Firmware Version:    22,1
Port:
Status:    No devices connected
Link Status:    7
Port Micro Firmware Version:    FFFF.FF.FF

You are correct, here is what Apple Says:
http://support.apple.com/kb/TS3775
I was able to find these instructions, however they referr to 2009-2011 27" iMacs. I think it's the same, if it's not then contact Apple directly for instructions. If either of the machines is less than 90 days old or covered by AppleCare then call AppleCare tomorrow for help, they should be able to easily answer this for you. You will find the number in your manual or you can use the AppleCare Contact Info link.
Your iMac should automatically recognize the presence of a digital video signal at the Mini DisplayPort and enter Target Display Mode.
If your iMac does not automatically enter Target Display Mode, press command + F2 to manually enter Target Display Mode.

Can't get Target Disk Mode to work with host computer

Here's the problem. My Powerbook G4 went down a week ago (it's 7 years old) and I suspect the problem is either the hard drive or the portion of the logic board controlling the drive. I also have a Power Mac G4 400 that's running OS 10.4 Tiger. I've been trying to extract some files (that I failed to back up) from the Powerbook via Target Disk Mode using the older Power Mac as the host, however the target disk doesn't show up on the host screen. When I boot up the Powerbook holding the T key, it chimes and the FireWire symbol shows up like it's suppose to, but that's as far as goes. I plan on upgrading to a newer Mac, which would probably work better as a host, but money is a bit tight right now. Any suggestions would be appreciated.

If the trouble with the Powerbook is either a failed hard drive or a failed hard drive controller, FireWire Target Disk Mode isn't likely to work with any host computer. What you may want to try is installing data recovery software on the desktop G4 and seeing whether it can see the Powerbook's drive (connected in FWTDM) even though it won't mount. Data recovery software is often able to salvage data from drives that won't mount normally; it may be able to do the same thing via FWTDM.
These three DR utilities are all available in free downloadable demo versions that will show you what the full version would be able to recover before you have to pay for anything:
Data Rescue
FileSalvage
VirtualLab
Good luck.

Fire wire target disk mode work with usb also?

hi all,
does starting up in fire wire target disk mode also work with usb drives?

No, and it requires a Mac with built-in FireWire.

Why MBP heats when working in target disk mode?

I connect my MBP to iMac using target disk mode through Thunderbolt interface, close the lid and work on iMac booted from MBP's disk. My understanding is that in this mode MBP should consume very little energy because CPU and GPU are mostly inactive. But I can feel that MBP actually heats up considerably. It not critically hot, but still hotter than I would expect. Can someone explain why this happens?

For FireWire Target Disk Mode, if there are two drives connected to the same IDE bus, I believe only the one that is set as Master is accessible from the "other" computer. So it's possible that your optical drive is Master and hard drive is Slave, in your config.
Copying the files to the external drive, while the iMac G4 is still bootable, was a good move.
Once the data is safe, you might try the following (assuming you are able to continue starting up that iMac). Download a cloning utility, such as Carbon Copy Cloner
http://www.bombich.com/
Clone the internal drive volume to a FireWire external drive volume. Set System Preferences Startup Disk pane to start up from the clone on the FireWire drive, and try to start up from the clone. While started up from the FireWire drive, you can run Disk Utility on the internal drive. Maybe you can do a Repair Disk successfully.
You can also use Disk Utility to completely erase the internal drive. Be sure to select the internal DRIVE (not the volume indented under the drive) in the sidebar, then go to the Erase tab. Doing an erase in this way will re-partition and reformat the hard drive. That may get rid of your data corruption problem.
Then, clone the clone back to the internal drive, and try to start up from it. If there was an underlying hardware problem on the hard drive, this will not fix it. But if it was just data corruption at the volume level, that iMac G4 may still have some life left.

Does Disk Utility work in FireWire Target Disk Mode?

I have the dreaded "overlapped extent allocation" disk error on my PowerBook G4 FW800, which I discovered when attempting to install Tiger. I can still boot into 10.3.9.
My question: Can I run Disk Utility from my G4 PowerMac (Tiger10.4.7) with my PowerBook in Target Disk Mode? I have seen this mentioned in some discussion threads, but others say it won't work.
Alternatively, is there another way (e.g. ethernet) to connect the two to fix the problem?
PowerBook G4 15" 1GHz FW800 Mac OS X (10.3.9)

Thank you.
I ran Disk Utility via TDM and it repaired the problem. Luckily, the corrupted files were not important.
PowerBook G4 15" 1GHz FW800 Mac OS X (10.3.9)

Target disk mode with external hard drive?

Hi all,
I have a very annoying problem. I've just bought a new Mac Mini, previously I had an iBook G4 600 (about 6 years old). My Mac mini works perfectly, but...
1) I don't want to copy everything over from the iBook with Migration Assistant, I'd rather pick and choose what to copy. Is buying a firewire cable and using Target Disk mode the only quick way to do this?
2) I was intending to transfer files using my external HD. But the Mini doesn't recognise my poor old external drive. However, all my iTunes music is on the external HD. It seems by far the fastest way to get the music off (as long as I can't get the mini to recognise the HD)would be to boot the iBook in Target Disk mode then somehow be able to read from the external HD as well. Is this possible? If not, what on earth can I do??
Thanks in advance,
Suz
Message was edited by: Suz

Okay after testing, I am ready to conceded that you are correct that you can daisy chain an external drive and a TDM Mac together and have them mount both drives.
However. unless Suz proves me wrong (Which is always a possibility), I do not think that it will fix her initial problem. Since all's TDM does is allow the computer to act as a Firewire device, so it and the external hard drive, are simply 2 FW devices on a serial bus. If the new Mac Can't mount the external drive from the old computer, I doubt it would mount it with the old computer connected to it. (Unless there is just some funky thing going on that having another firewire device on the bus corrects?)
Let's see if it shows up in System profiler, and if it shows up there how does Disk Utility see it?
Have you also tried resetting the NVRAM?
Also just to be on the safe side, do you have another Firewire device that you can connect, to let us know that the port on the new mac is actually working?

Data recovery options if drive not accessible through Target Disk Mode

I have the classic data recovery question: my computer seems to have failed, and I'd like to save some data. Thanks in advance for any advice.
Details:
- Most recent backup was about a month ago to Time Machine (unfortunately, this laptop went off on a long trip and didn't have access to the destination disk, and then when it came home was running very slowly and my wife halted the TM backup thinking it was slowing the computer down). Some documents have been backed up more recently via Dropbox and/or Mozy, but not a couple important ones
- When booted in Target Disk Mode, no drive shows up on the computer to which I connect it
- When I boot from an OS X CD, a drive appears in Disk Utility with no volumes on it, and the options to 'repair disk' and 'verify disk' are greyed out.
- When I try to just start the computer up, it gets to the grey screen with the apple and just spins.
Questions:
- Should I attempt anything else myself? I've never learned about Lion's Recovery Mode; can it be used to copy some data off, in the unlikely case that this computer would boot into that Mode? Would any further attempts to boot, etc. potentially reduce the chances of a professional company recovering data?
- I'm planning to take this to an Apple Store today to confirm that this is indeed a hard drive problem and not a failed mother board or something; is there a way for me to do this myself? In the past I've used Hardware Test CDs from Apple and stuff; I don't know if those still work on modern computers.
Thanks again for any help!

I know I used to have a copy of Disk Warrior, but can't find it and it's probably out of date. I downloaded the Data Rescue demo, but it only got partway through scanning the disk and then failed. It told me to 'clone' the disk, but after about three days of trying still wasn't making much progress on it, so I gave up.
However, I was able to recover the few important files I needed simply by removing the drive, putting it in an enclosure, and connecting it via USB. After 10 or 20 minutes, Finder gave me a message that said something like, "this disk cannot be repaired, and is probably damaged. You can still access the disk, but copy everything off ASAP because it will probably fail soon." Some files indeed couldn't be copied, but I could copy the things I needed.
I assume that this is a hardware problem. To confirm, I assume that I can check it without having DiskWarrior simply by trying to reformat it? If it can't be reformatted, I assume there's no chance that it is a functioning drive. Is that right?

Target Disk Mode no longer working

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