It is CentOS 6.2 x86_64 machine, i have upgraded few packages using "yum
-y update", after the reboot machine does not show login screen, i have
allowed enough time to show the screen that are about 2 hours. booting
process does complete, it just hangs when it is about to show the
screen. i tried to check by doing ssh for warring/error logs. nothing
serious was there. but when i did the ssh to the server then i saw the
following error. Prior to the upgrade machine was just okay.. )