Cannot see the Centos partitions after GPT

[dPAT6]

Hi everybody!

Recently I installed Centos on my laptop with Windows 7 and after modifying the grub I got multiple boot options.

I was pretty happy until I decided to got another Linux on my laptop. So I changed the entire disk to GPT (from MBR) and made more partitions to install the second Linux. But I can only boot the windows and I cannot boot the Centos.

Could you help me to solve this problem?

[dPAT6]

This is the situation with the partitions...

Partitions.jpg (127.78 KiB) Viewed 676 times