Invalid B-Tree Node Size Fix Issues.

Have you installed DiskWarrior on your desktop's hard disk or are you running it from .dmg file that you opened on your desktop Mac's desktop and appears in its own window? That error is typical if you don't first install it on the HD of your Mac. The installation should simply be dragging it from that window onto your Application Folder's window. Then run DiskWarrior from the Applications folder.

I don't have option to install anything. Its not booting up, its taking me directly to recovery utilities, but i can't mount the hard drive.

Raj_LA wrote:

I don't have option to install anything. Its not booting up, its taking me directly to recovery utilities, but i can't mount the hard drive.

Since you're jumping in on a thread which someone else started and finished a full year ago, you might be better off starting your own new thread. At the very least it would be helpful if you fully explain what your problem is, which Mac and which operating system you're using, and what you've done so far.

But if you're trying to boot from the DVD that Disk Warrior is on, it won't work unless you've got a pretty old Mac.

Its Mac Book Pro, OS X, tried fixing thru single user mode, (can't find the drive there). Tried fixing thru Disk Utilities, it won't mount, and don't repair. (problem happened, my computer froze and i did hard reboot) seems like it messed up or locked my hard drive, and no one read it. Now unlocking or making it reach to fix permissions not working.

Raj-LA-

Buy a new drive that is a candidate to replace the drive inside your macBook, and an external USB enclosure to hold it while you work on it. They can be had for under US$100.

Install Mac OS X from scratch on the new external drive.

Use the full power of Mac OS X to examine and repair your damaged drive, instead of trying to work from Recovery mode or Single user mode.

After you are satisfied that you have salvaged all of YOUR files that you can, If the damaged drive can be repaired, great. If not, use the new drive as a replacement. Mac OS X contains over 350,000 files, and you do not need ANY of them -- if you install a new copy on another drive.

i installed a new OS on external USB drive, and booted the system, but i can not see the main hard drive under anything to make it work.

If it will not tell Disk Utility BOTH its make&model and a non-Zero size/capacity, the drive cannot be erased or repaired in its current condition.

If you move it to an external enclosure and it perks up and becomes functional, you may have a bad SATA cable inside your MacBook.