Time Machine Trying to Create New Backup, Not Adding to Existing

[MrMan112]

I had my MBP in for a repair (new logic board), but my hard drive was left completely intact. When I got home and hooked my computer to my external hardrive for a Time Machine Backup, Time Machine would try to create a new backup folder within the Backups.backupdb folder, rather than adding to the existing computer back up folder. It would then give me an error indicating inadequate space on the hard drive, which is of course because there are existing backups using the space and it was trying to start fresh. When I click on Time Machine in the dock, I can only see today's files, and I cannot access any previous backup dates.

My system software is all up to date. I called Apple Care, but they seemed stumped, and kept me on hold way too long, before I decided to see if anyone here knew. Thanks!

 

[MrMan112]

I had my MBP in for a repair (new logic board), but my hard drive was left completely intact. When I got home and hooked my computer to my external hardrive for a Time Machine Backup, Time Machine would try to create a new backup folder within the Backups.backupdb folder, rather than adding to the existing computer back up folder. It would then give me an error indicating inadequate space on the hard drive, which is of course because there are existing backups using the space and it was trying to start fresh. When I click on Time Machine in the dock, I can only see today's files, and I cannot access any previous backup dates.

My system software is all up to date. I called Apple Care, but they seemed stumped, and kept me on hold way too long, before I decided to see if anyone here knew. Thanks!

Well after alot of searching, I found the answer here:
http://www.macosxhints.com/article.php?story=20080128003716101

Only problem, is that I'm having a difficult time getting this to work as I have very little knowledge using Terminal. I'd appreciate any help, thanks!

 

[RevK]

Basically each line in those commands in a separate command you should type or copy and paste yourself. Noted in the article is also the things you should change in the commands...

I will assume that your backup disk is named Time Machine and your computer is named MyMac. In addition, my "old" MAC address for demonstration purposes is 00:f9:e8:d7:c6:b5 and the new one is 00:1a:2b:3c:4f:56. Change occurrences of those values below wherever they occur to match your system.