On Fri, 2011-07-29 at 02:44 +0530, sridhar sri wrote:
when i press the F11 i am not able go to boot options , for that i used the del and esc,
OK.
Are you using SATA or PATA hard disks (HDD) ?
What processor (CPU) does your machine have ?
How much RAM does your machine have.
Please note http://en.wikipedia.org/wiki/Booting is NOT a Centos web page. Every machine has different start-up options which can be DEL, F1, F2 or even F6 or F11.