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Invalid node structure

Abbas

Abbas

macrumors regular
Original poster
Jul 9, 2008
176
48
Dubai
After installing a MacOS update, I cannot boot into OS X anymore. Using CMD R, to boot and run Disk Utility, the error is "Invalid Node Structure" - also using CMD S and issuing fsck -fy command gives the same error.

I have created a boot drive from external drive and can boot from it but all the folders have the "No entry" logo on them. If I can access my data and copy it over, I don't mind formatting the internal fusion drive on my iMac.

Any help would be appreciated!
 
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