Help please! My HD is not appearing

I have a Dual 2 Ghz PPC G5 with 1,5 GB DDR SDRAM with Tiger RECENTLY installed.

I tried to defrag my mac with Norton Utilities 8.0. While running Disk Doctor, N.U. told me that there is a major problem in the B-tree structure, but couldn't fix it. (there was also a strange file on my desktop called BootX...)

After installing TechTool Pro on my HD, the appl. asked me to restart.
Everytime there's a window appearing asking to "restart by pressing the power button for a few seconds". This happens after the load screen with the Apple logo. It's a black transparent window on a drawing of the power button and is stated in 4 languages.
When I do nothing for minutes, my G5 starts to make the sound of a starting airplane ..
Then I tried to restart with the Tiger boot cd. This worked and I could choose my external LACIE HD as my start-up disk because my internal HD was not viewable.
And even on this external HD desktop I couldn't find my internal HD anymore ... (?) It's gone.

Can anyone help me ?

TX., Peter

I think what you is happening is this: http://docs.info.apple.com/article2.html?artnum=106227
see if this will clear it up...if not, let us know, and I'll go into more detail with you later.

Thank you Jefe3223,

Yes, that's indeed the window that appears when I try to startup.

I downloaded the TechTool Pro 4.0.4 Updater that supports Tiger, but I don't dare to install because if I install the basic TechTool Pro 4.0 to my Lacie, I need to reboot ... and then (I think) the same thing will happen : Kernel Panic!

Also DiskWarrior has not yet a version that supports Tiger.

When I start up from the Lacie or Tiger cd I can't see my internal drive (?)

Also DiskUtility cannot repair the internal HD. Here it says : checking HFS Plus Volume : Invalid B-Tree node size

I hope I explain and give info enough (I'm not a specialist)

I hope you can help !
Peter

Why did you try to defrag your hard disk when OS X has journaling filesystem?

meltbanana314 said:

Why did you try to defrag your hard disk when OS X has journaling filesystem?

Click to expand...

I really don't understand what you mean with OS X journaling filesystem.
P.

solve all future problems uninstall norton programs they **** more stuff up than solve them

Peter Vanderhal said:

I really don't understand what you mean with OS X journaling filesystem.
P.

Click to expand...

I meant to say a journaling filesystem, but anyway:

http://en.wikipedia.org/wiki/Journaling_file_system

Journaling filesystems (like HFS+ on Mac OS X or ext3 on Linux) do not need to be defragged like FAT and NTFS filesystems that you encounter on Windows machines.

Norton Utilities is such an extreme ripoff, because it does absolutely nothing but screw up people's Macs. Most of the utilities a Mac user can be had in a piece of free software called OnyX (www.titanium.free.fr/english.html) and other various freeware/shareware applications like Cocktail and TinkerTool.

If I were to hazard a guess here. it appears that Norton corruptted your system. You can see your system disk from a bootable CD, but you can not boot from it.

Have you tried to boot in single user mode. I believe to boot in to single user mode, you must press and hold down the s key on boot up.

Once you have don't that, you can try and fix the system disk by issuing a fsck. I believe the system will get you the proper command once it boot in single user mode.

I would also try calling Apple and see what they recommend.

Never load any Norton programs on a Mac. Just use DiskWarrior/TechTool.

I'm "recovering" my data with Rescue Data at the moment !

Still no solution for restoring and/or rebooting my internal HD.

Are there other solutions I can "risk" when I recovered (hopefully) most of my data ?

Is there a way to find back all my e-mails (inbox, send, ...) after recovering?

What a story ... it took already 3 stressy days !

Many thanks,
Peter