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View Full Version : Firewire 800 data loss after OS 10.3 upgrade



Beamtracer
11-02-2003, 08:19 PM
This bug has already been mentioned on a different thread, but I thought it was worth highlighting.

Upgrading to OS 10.3 may cause all data to be erased on Firewire 800 drives attached to your computer.

This bug probably won't affect new G5 machines. It's more likely to affect older Macintosh computers.

It happens when you connect a Firewire 800 drive to the Firewire 400 port of an older Mac running OS 10.3. Even then, it only occurs if the Firewire 800 drive has an Oxford chip with firmware level 1.02.

Considering the seriousness of this bug, I wouldn't be surprised if Apple releases an update to their OS in a matter of days.


PS... always back up your data!!!

Ade
11-02-2003, 11:45 PM
Someone warn Policarpo as I think he uses a portable HD with his powerbook?

gazmon
11-03-2003, 08:50 AM
dont know wether this helps but I read that Lacie have put a firmware updaate on their website to help tihs. Maybe other companies have aswell.
Gaz

mlinde
11-03-2003, 09:16 AM
Originally posted by Beamtracer
This bug probably won't affect new G5 machines. It's more likely to affect older Macintosh computers.

It happens when you connect a Firewire 800 drive to the Firewire 400 port of an older Mac running OS 10.3. Even then, it only occurs if the Firewire 800 drive has an Oxford chip with firmware level 1.02.
Actually, Oxford is now claiming (of course) that it isn't just the FW800/Oxford 922-1.02 combination, but that it could be other drives. There have also been reports of non-800 drives on non-800 machines with data loss as well. I would recommend caution to ANYONE using FW and 10.3.

Beamtracer
11-04-2003, 02:09 PM
Some more information about the Firewire800 bug from various drive manufacturers...

Quote from WiebTech:
http://www.wiebetech.com/
"It has been determined that this problem between Panther and FireWire 800 drives usually
occurs in circumstances involving older, slower Macintosh computers where the FireWire 800
drive is attached to a FireWire 400 port on the computer, and the firmware level of the FireWire
drive is 1.02, said James Wiebe, CEO of WiebeTech.
WiebeTech recommends that its FireWire 800products (specifically, the Fire800 and
MicroGB+800) be used only in conjunction with Panther after the firmware update has been
applied to the drives. It is important that these products first be unmounted from the Panther
system, then firmware updated on a Jaguar system (OS X 10.2.8 or lower) before re-attaching
the drive to Panther.



More information from LaCie:
http://www.lacie.com/news/news.htm?id=10059
(Abrieviated quote)
We believe this problem affects all manufacturers of FireWire 800 drives.

LaCie FireWire 400 products are not affected by this issue and require no special handling.

Our investigation has determined that only certain drives with specific versions of drive firmware are affected.

The problem can occur if drive is connected to built-in FW800 and FW400 interfaces. It may also occur with drives connected to PCI and PC Card FireWire interfaces



Apple has placed a message on its website.
http://www.apple.com/macosx/firewire800specialmessage.html
Quote from Apple:
Apple is working with Oxford Semiconductor and affected drive manufacturers to resolve this issue which resides in the Oxford 922 chip-set.

Seems that Apple is pointing the finger of blame at the Oxford company that makes the ATA-Firewire bridge chips.



Oxford Semiconductor has a notice on its website...
http://www.oxsemi.com/
We can also confirm that the problem is most likely to occur on shut down, sleep or restart of the Mac with the FireWire800 drive connected. To avoid this issue on existing drives (those not upgraded to 1.05), users should ensure that they power up their Macs before plugging in their FireWire drive, then before closing down, going to sleep, or restarting, they should move the Firewire drive to the trash-can, and then disconnect it.

Beamtracer
11-06-2003, 01:34 PM
It's interesting that there are some reports of Firewire400 drives being erased by Panther.

Report on MacCentral:
http://maccentral.macworld.com/news/2003/11/05/firewireissue/

The problem seems to occur during startup or shutdown. If you have to use a Firewire drive with Panther, it may be wise to "hotswap" it so that the drive is not connected to the computer during startup or shutdown.

mlinde
11-06-2003, 01:57 PM
Originally posted by Beamtracer
The problem seems to occur during startup or shutdown. If you have to use a Firewire drive with Panther, it may be wise to "hotswap" it so that the drive is not connected to the computer during startup or shutdown.
Or deinstall 10.3 :D
Also, beware File Vault, and problems with journaling, in 10.3. Keep up with the news at Macintouch Panther Notes (http://www.macintouch.com/panreader.html).