Mac doesn't show in bootloader

[SanderDeclerck]

Hi guys,

I've got a big problem, a week ago, I installed windows through bootcamp, everything worked fine, until today. I tried starting up in mac, but in the bootloader, starting up in windows was the only option showing up...

Yesterday however, I was still able to start up in windows... The only thing that changed was me installing macdrive on my windows partition...

And I can still access my mac partition in windows (with macdrive)

 

[blackburn]

Can you post an printscreen of the mac volume in windows? (with hidden files)

 

[SanderDeclerck]

Just the root from the mac volume?

I attached it...

 

[blackburn]

Yep. looks like it's fine. Now can you browse to system / library / Coreservices?

edit: those hex named folders look like they came from windows updates can you check them out?

 

[SanderDeclerck]

Attached it:

edit: the hex-folders are empty

 

[blackburn]

Them those hex named folders are temporary folders used by some installer. Looks like your boot.efi file is still there. Looks like it needs to be blessed (bless command).
edit:
Looks like you need to use your mac os x install disk to run this command

sudo bless --folder "/Volumes/Mac SSD/System/Library/CoreServices" --bootefi "/Volumes/Mac SSD/usr/standalone/i386/boot.efi"

Replace Mac SSD with your boot volume name.

 

[SanderDeclerck]

Thanks a lot, I'll try it tomorrow, now its time to go to bed.

 

[blackburn]

Your welcome but looks like it's better to use this command instead:

sudo bless --folder "/Volumes/Mac SSD/System/Library/CoreServices" --bootefi "/Volumes/Mac SSD/System/Library/CoreServices/boot.efi"

edit:tried and it works on my macbook

 

[SanderDeclerck]

Somehow, it worked again when i woke up today, without doing anything, but thanks anyway!

 

[SanderDeclerck]

Ok, now I've got the same problem again, I tried the work-around, however it doesn't seem to work.

First, I went to Disk Utility, to find the name of my mac volume, however, it showed up as "disk0s2", while it should've been "Mac", also, it was in gray, so I tried to repair it, and got the message:

Disk Utility stopped repairing "disk0s2"

Disk Utility can't repair this disk. Back up as many of your files as possible, and restore your backed-up files.

When I tried to verify the disk, I got the following messages:

Verifying volume "disk0s2"
Checking Journaled HFS Plus volume.
Checking extends overflow file.
Keys out of order
The volume was found corrupt and needs to be repaired.
Error: The disk needs to be repaired. Click Repair Disk

And as you could read, repairing the disk didn't help too...

So I'm thinking, are there any other options beside backing up everything through my windows partition and formatting my mac partition and installing snow leopard again?

Cause, for instance, I don't know how to back-up my e-mails from Mail...

edit: Oh ye, I also tried using the command supplied by blackburn, but it didn't work either, it gave me the following message:
sudo: command not found

Then I tried it without sudo, and it gave me this message:
No mount point for /Volumes/disk0s2/System/Library/CoreServices
Can't determine mount point of '/Volumes/disk0s2/System/Library/CoreServices' and ''

 

[blackburn]

Looks like your mac os x volume is way too corrupted. If you backup your user folder, your emails will be safe.

look here http://docs.info.apple.com/article.html?artnum=42938

in /Users there should be a folder with your user name. Copy that to an external hard disk or the bootcamp partition. And looks like mac os x can't mount your volume either

First of all backup everything that you have in the mac os x volume. Then try repairing the volume from macdrive

Edit: Looks like your hard drive is about to fail make an backup asap to an external hard drive (since it works and it stops working)

 

[SanderDeclerck]

Ok, so now I'm backing up, however, some folders seem to be empty while they shouldn't be (corrupted?), some of them are really important, for instance, there's a website I made that's supposed to go live next week, any ideas?

 

[blackburn]

Damn looks like you've got yourself into trouble You don't be any change have a backup?
You can after copying what you can, run a data recovery software. You can also try to reboot the mac if it boots grab all the important data..

 

[SanderDeclerck]

I'll continue tomorrow, I just dont feel like it anymore today, I'm gonna get drunk now.

 

[dawc]

I'll continue tomorrow, I just dont feel like it anymore today, I'm gonna get drunk now.

[Sorry for my English ]

I have a very, very similar problem to yours.
I have also Windows BootCamp, and also everything worked fine, until today.
My Mac Drive my shows something very similar, and folders are empty, and.. Disk Utility can't repair my disk..

But finally I found a way to make copies of important files for me, so try this:

1. Plugin PenDrive
2. Start computer( with Mac installation DVD)
3. Alt -> Installation DVD
4.From the toolbar, select Utilities - > Terminal
5. Check what is the name of your PenDrive:

cd /Volumes
ls -l

6. And now try to copy any files
ex:
cp /Volumes/(MacPartitionName)/Users/(UserName)/Documents/text.txt /Volumes/(PenDriveName)

for folders "cp -r"

Hope it helps