New 13" MBP won't mount or recognize external drives via FW 800

Hi all,
I have a brand new 13" MBP. I have two external 750GB Lacie drives that were formatted for MacOS on my previous 13" MacBook. I mounted these drives via USB on the older laptop.
Neither of these drives will mount on my new laptop via the FW 800 ports. I've tested two cables on both drives and nothing works. Also, neither of the drives appear via disk utility when using FW 800. The drives do however appear when using USB.
Is my FW 800 port faulty? Could it be something else? Thanks!

Hi,
I'm having a similar problem to you - my external drive is not recognised by my MacBook Pro when using FW800 but it is when using USB2.
Did you have any luck getting your firewire to work properly?

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Title pretty much sums it up. I've had an external firewire 800 drive (Iomega eGo) for about 2 years now. I've got it partitioned and am using part as a time machine backup and the rest as a data storage/ data moving partition. A few days ago I realized that any data I put on either partition can't be copied off by either my computer or either of my two friend's MacBook Pros. The copy starts fine, but then always screeches to a halt around 5% (this is via firewire). This same drive also cannot be recognized via USB by any of our Macs (I plug it in, light comes on, but doesn't blink), but if I plug it into my Windows Desktop the USB recognition is immediate. I found this very strange. I could also copy files off of the drive via USB onto my desktop. If I let it sit long enough on a failed copy on our macbooks eventually it gives me an error code 36. I traced that to a likely hard drive failure on the part of the external. I found this odd because not even 3 days ago I was pulling iTunes songs off the drive onto my desktop with no trouble. Is there any way to fix this via software or the terminal or anything? Disk Utility says both partitions are 'OK'. I'd really like to not spend another chunk of change on an external, as I just spent $180 on a new HDD and SSD for my desktop.
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Triple-click anywhere in the line below on this page to select it:
{ diskutil list; echo; diskutil cs list; } | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. If the command produced no output, the window will be empty. Post the contents of the TextEdit window (not the Terminal window), if any — the text, please, not a screenshot. The title of the window doesn't matter, and you don't need to post that.
If any personal information appears in the output, anonymize before posting, but don’t remove the context.

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Hi
I thought to put this in the MBP forum but since I thik it may be the OS I decided to post here.
I have a newer MBP with OS 10.5, I have an external LaCie c0nnected via eSata to keep my firewire 400 port free. I mounted another external HD to the Firewire port and the computer recognized it and I started copyig some files from the LaCie to the other external. Both formatted HFS+ Files were QT files. Somewhere during the copy process things locked up. I had to force quit the copy process, then coldn't restart the computer so had to ue the boot button to turn it off. Now I can't connect anything to the FW port. The MBP won't mount the 2nd external HD so I can get those files copied. I brought up my FCE and connected the external monitor to the FW port but now that doesn't work either and it was working this morning.
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Allen

Hi VK
Well I didn't blow the FW port. My video editing partner came over today to discuss a project we're working on together. He has FC Pro and I have FCE4. So I mentioned the problem to him cause it was his HD that wouldn't mount.
We had FCE open so I was showing him my external monitor fed via the FW port wasn't working either. He went to the View menu then to Video out and then to refresh video devices. BINGO! The external monitor started working. So it wasn't the FW port but apparently the FW was locked up or looking for the other HD. Now it's working. But I haven't tried connecting another external FW HD yet.
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Hi Tom,
I'm so impressed with how you help everyone solve their problems. I will do my best here, but my husband will be home soon and knows how this large external is formatted.
How late do you all work there? I'm on east coast. Is the screen shot you wanted? I opened up external and
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I doubt this can be relocated or moved so you might want to just repost in the macbook pro area.
MacBook Pro
https://discussions.apple.com/community/notebooks/macbook_pro
https://discussions.apple.com/community/mac_os?view=discussions
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Use what you have for a system backup or for secondary backup storage.
you might be able to take the drive - most cases allow you to open and swap drives - and use this:
G-Technology 1TB G-DRIVE mini High-Speed Portable Hard Drive
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<Re-Titled By Host>

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I’m getting to the bottom of the barrel.
Two last stabs:
Enable root user:
http://docs.info.apple.com/article.html?path=Mac/10.6/en/11778.html
Try again.
Creaye a new user in Accounts Pref Pane.
Enable root user.
Login to that user and give it a try.
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Raj wrote:
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New 13" MBP won't mount or recognize external drives via FW 800

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