Friday, July 29, 2005

My iBook failure: I think it's the logic board defect

Apple - Discussions - What does ata 1/6/13 HD 2,0 mean?

One advantage of being an Apple customer is that there's an very helpful community of users that offsets some of Apple's "industry-standard" quality control issues. On an Apple iBook forum an expert aide points out my iBook's apparent drive failure may well be a logic board failure. Here's what I wrote back:
Ronda,

Thank you so much. I thought this was a hard drive failure, but I started the iBook in target disk mode and thrashed it (SMART didn't work in this mode). I repartitioned, erased, put on a DOS partition, erased, put on a Mac partition, copied 15GB of data to it -- the drive never hiccoughed.

I then cloned a backup image [1] and the system ran -- sort of. A Retrospect restore worked for a while, then stopped. On one restart I got a blank blue screen -- but a remote computer indicated the retrospect client was running. On another restart I got the disk not found (again).

I've reset nvram from open firmware boot and, especially, after the various repartitionings, erasures and original CD reinstalls I'm sure there's no software or drive data corruption remaining.

So I've eliminated software and I'm increasingly confident that the drive itself is ok. That does tend to implicate the logic board.

Of course the program ended March 18th, 2005 or 3 years past purchase -- and my system was purchsed June 2002, so in theory I'm out of range. Of course I'll call anyway.

Thank you,

john

[1] I've survived at least 4 major drive crashes over 15 years with very little data loss -- I have backups like some people have shoes.
F/U to come.

Update: No luck with Apple! They charge $50 to talk to a product specialist, $200 or so to look at it (and if it doesn't have the original 128MB memory stick they send it back unfixed!), and more beyond that.

First Tech Computing, a local authorized Apple dealer, will charge $40 to look at it and then will tell me what a repair costs. I'll pay for First Tech, and if I end up having the logic board replaced I'll take phone Apple Customer Relations at 800-767-2775.

Update 7/30: The very last thing I did was to create two partitions on the iBook, 1GB and the rest. I cloned to the "remainder" and left the 1GB empty. It's still running. I think the effect is coincidental (ie, the problem will recurr), but it's interesting. I'd hypothesized that if there is a drive problem, it might occur in the heavily used initial portions of the drive and that this maneuver might shuffle critical files out of that area. I'm using the iBook purely as a "thin client" for now.

Crashing iBook: is it the logic board?

Apple - Support - iBook - Expanded Logic Board Repair Extension Program - FAQ My iBook is just one month beyond its 3 year anniversary, and it seems dead. I thought it was the hard drive, but that tests out very well in target disk mode. I wonder if it's the logic board ...

Thursday, July 28, 2005

Tiger - moving mail from an 10.3 Mail.app

Apple - Mac OS X

There are several ways to move Mail.app data into Tiger when switching machines. You can use Apple's data migration utility, but I prefer to move more gradually. (Mail.app data structures changed in Tiger to fit Spotlight.)

I logged in on my Tiger account and copied all my ~/Library/Mail files to the new machine. Then I tried two approaches. The second is better:

1. Fire up Mail.app. Create a new account. Import old content using the built-in import function. This brings in only mailbox data.

2. Delete everything in ~/Library/Mail on the new machine (eg. data from #1). Copy the Mail files from old machine in here. Start Mail.app. It imports mail and configuration data.


At first I created a new mailbox and used the Mail.app import function to imp

SuperDuper: clones and creates bootable startup disk -- even in 10.4.2

SuperDuper

A very sophisticated approach to recovering data from a dead drive: using a linux utility with OS X Tiger

macosxhints - 10.4: Recover a dead hard drive using GNU ddrescue

macosxhints - Move an iTunes library to a new machine

macosxhints - Move an iTunes library to a new machine

Read the whole thread, there's more than approach. I've noted this before I think, but it's newly relevant to me.

Good advice on cleaning up after a crash and a force quit

Apple - Discussions - G3 - after the crash

Apple forum advice for recovering from an 'out of drive space' crash:
... it might be that a force quit left behind some huge cache files, making things worse.

If that's the case, you might locate them by asking File>Find to search for invisible files whose size is, say, greater than 50MB…

Either way if you're trying to clear a G3-vintage disk, it probably needs at least 10% of its total space free to avoid exactly this kind of situation.

Also for future refernce - though you may have already tried it this time - when you get the kind of trouble warning you got, then if you can actually clear the warning it may not be necessary to do anything else but wait. When you've used up pretty well all of both disk and RAM, files that normally open quite quickly can take minutes extra, giving the impression that nothing's happening and making force quit too tempting…