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Installed Messages Beta - now my Mac wont boot!, Installed Messages Beta - now my Mac wont boot!

Update:11-30Source: network consolidation
I just installed the Messages beta tonight, restarted as requested and then found the boot took ages... many minutes.
In the end i restarted it, only to find the same result.
I then boot in verbose mode and see that the mac stops very early with the following message
"dyld: Library not loaded: /usr/lib/libz.1.dylib"
"  Referneced from: /System/Library/Frameworks/Security.framework/Versions/A/Security"
"  Reason: malformed mach-o image: load command #1 length (2336878517) would exceed sizeofcmds (272125132) in /usr/lib/libz.1.2.5.dylib
"The System bootstrapper has crashed: Trace/BPT trap: 5"
I've copied this from a photo i took so some of the details may be wrong.
I've only just recently upgraded to a SATA III SSD hdd, so still have my week old hdd boot around which i'm logged into now. I've tried comparing the mach_kernel, /usr/lib/libz.1.dylib (links to the 1.2.5 version), and  /System/Library/Frameworks/Security.framework/Versions/A/Security files reported and all 3 of them are exactly the same according to md5 on the failing to boot disk compared to the succeeding to boot disk.
Has anyone got any ideas how i can fix this? I never managed to make a time machine backup of the disk as was sadly. I'm a little worried it could be due to SSD SATA III issues.. there was a long pause to my system whilst it was trying to install messages, which i've noticed from time to time since installing the SSD.
Frustrated!! Any help, appreciated.

The Best Answer

Hi there,
Sadly, I'm pretty sure replacing a hard drive on a MacBook Pro voids the warrentee, so you may have to pay out if this needs a repair. Let this also be a lesson about taking backups - I really feel for you here.
While I can't pinpoint what could be causing this, the best way forward is probably a clean install. This could also clear up a few issues with your SSD. You can do this by booting your mac in recovery mode. Hold Cmd-R when booting. Here you will have a few options to troubleshoot your machine also.
Sorry I can't help further here, I wish I could,