How to Use a Self Signed Certificate in Exchange 2010

http://social.technet.microsoft.com/wiki/contents/articles/13916.how-to-use-a-self-signed-certificate-in-exchange-2010.aspx

Centos software raid boot problem most likely on second and other disk.

boot into rescue mode via usb or centos install cd.

chroot /mnt/sysimage
   
 # grub
grub> find /grub/stage1
 (hd0,0)
 (hd1,0)
 (hd2,0)
grub> device (hd0) /dev/sda
grub> root (hd0,0)
grub> setup (hd0)
grub> device (hd0) /dev/sdb
grub> root (hd0,0)
grub> setup (hd0)
grub> device (hd0) /dev/sdc
grub> root (hd0,0)
grub> setup (hd0)
grub> quit


then reboot.