Problem in macbook pro late 2008 after update

[midnight12]

Hello, I hope everyone is fine.

I've got a fatal issue in my mac after I tried to update it to the latest version of Yosemite (10.10.2). The update downloads normally and it restarts my computer and it shows me this:

That wouldn't let me do any thing with my mac until I recovered the previous version from my Time Capsule backup. Till now I tried to install the update 2 times and it keeps giving me the same wrong message as in the picture above and I recovered my system twice.

My device info is:

Please help me ASAP How can I update my mac and avoid this issue?

Thank you

 

[midnight12]

Any help please

 

[lclev]

I don't know if this is any help but there was a post on the forum where they had to download the combo update from apple directly instead of using the app store. I am not sure why or what caused the issue but for them it fixed the issue.

Here is the link: OS X Yosemite 10.10.2 Combo Update

I don't have any other ideas but it might be worth a try.

Lisa