I received a new Dedicated Server from ovh.com yesterday. I updated the o/s using yum update and also made some changes to kernel parameters to install Oracle as mentioned at http://eduardo-lago.blogspot.com/2012/01/how-to-install-oracle-11g-database.html
When I rebooted the machine it is not coming up. The hosting company does not provide a KVM. It used to provide a Virtual KVM but for some reason it is not available today. I have contacted there support but they are saying to fix the o/s issue myself.
I can access the o/s in Rescue mode and mounted the partition then chroot <mount point>. I checked grub.conf and looks fine to me:
[root@rescue grub]# cat grub.conf
title CentOS (2.6.18-348.6.1.el5)
kernel /boot/vmlinuz-2.6.18-348.6.1.el5 root=/dev/sda1 ro
title linux centos5_64
kernel /boot/bzImage-3.8.13-xxxx-grs-ipv6-64 root=/dev/sda1 ro
[root@rescue grub]# ll /boot/vmlinuz-2.6.18-348.6.1.el5
-rw-r--r-- 1 root root 2126172 May 21 16:00 /boot/vmlinuz-2.6.18-348.6.1.el5
[root@rescue grub]# ll /boot/initrd-2.6.18-348.6.1.el5.img
-rw------- 1 root root 3629129 Jun 24 14:31 /boot/initrd-2.6.18-348.6.1.el5.img
Is there a way that I can find without having physical access to the machine why the system is unable to boot?