Unable to boot in CentOS 5.4

nikunjbadjatya · 11-12-2009, 12:47 AM

Hi,
I recently upgraded to CentOS 5.4 from 5.3 . after rebooting, the grub is coming showing all the available OS's , when i choose CentOS in it, the screen goes off, monitor and cpu are still on..??

Please help..!!

Thanks,

Niks

born4linux · 11-12-2009, 02:27 AM

try booting into single mode. you can do this by selecting the kernel line at the grub menu
and editing it - appending the word single or S in the line like:

kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/vg00/lvsys00 rhgb quiet single

then see if it'll boot into single mode.

any chance you are using an nvidia graphics card?

nikunjbadjatya · 11-12-2009, 02:44 AM

Hi,
I tried with what you have told..
it starts some services, and then directly command prompt comes..
i cant see any GUI for logging in, only black background and command prompt.. ??

fpmurphy · 11-12-2009, 09:01 AM

Quote:

I cant see any GUI for logging in, only black background and command prompt.. ??

That is because you are in sngle user mode.
What is the output of X -probeonly?

nikunjbadjatya · 11-12-2009, 10:18 PM

As and when i type X -probeonly, the screen is goin off.. i cant even see a single line of the output..
please please help..!!
Thnks a lot