CentOS - Feb 2016 - Kernel Panic post kernel-2.6.32-504.23.4.el6.x86_64

Greetings,

Today, I decided to reboot one of my CentOS machines after it had been 
running for 219 days.

In this time, I had done yum updates several times. When I tried rebooting 
the machine, none of the kernels would work except for the oldest one.

Here are the installed kernels:

kernel-2.6.32-504.23.4.el6.x86_64
kernel-2.6.32-573.3.1.el6.x86_64
kernel-2.6.32-573.7.1.el6.x86_64
kernel-2.6.32-573.8.1.el6.x86_64
kernel-2.6.32-573.12.1.el6.x86_64

Here is a uname -a:
Linux onavenuea 2.6.32-504.23.4.el6.x86_64 #1 SMP Tue Jun 9 20:57:37 UTC 
2015 x86_64 x86_64 x86_64 GNU/Linux

The CPU is a Intel Core 2 @2400 GHz; there is 6GB of RAM.

Much thanks for any advice in this regard.

Max Pyziur
pyz at brama.com

On Feb 3, 2016, at 12:24 PM, Max Pyziur <pyz at brama.com>
wrote:
> 
> When I tried rebooting the machine, none of the kernels would work except
for the oldest one.
Define ?would not work?.  Post a photo of the error message somewhere if you
can?t describe it better than that.  You might have to turn off rhgb mode to get
a useful error message.
> Here are the installed kernels:
> 
> kernel-2.6.32-504.23.4.el6.x86_64
> kernel-2.6.32-573.3.1.el6.x86_64
> kernel-2.6.32-573.7.1.el6.x86_64
> kernel-2.6.32-573.8.1.el6.x86_64
> kernel-2.6.32-573.12.1.el6.x86_64
Post the contents of /etc/grub.conf.

On Wed, 3 Feb 2016, Warren Young wrote:
> On Feb 3, 2016, at 12:24 PM, Max Pyziur <pyz at brama.com> wrote:
>>
>> When I tried rebooting the machine, none of the kernels would work
except for the oldest one.
>
> Define ?would not work?.  Post a photo of the error message somewhere if
you can?t describe it better than that.  You might have to turn off rhgb mode to
get a useful error message.
Here's a photo of the screen once the booting froze:
http://www.brama.com/~deckard/P1010308.JPG
>> Here are the installed kernels:
>>
>> kernel-2.6.32-504.23.4.el6.x86_64
>> kernel-2.6.32-573.3.1.el6.x86_64
>> kernel-2.6.32-573.7.1.el6.x86_64
>> kernel-2.6.32-573.8.1.el6.x86_64
>> kernel-2.6.32-573.12.1.el6.x86_64
> Post the contents of /etc/grub.conf.
I removed most of the non-working kernels 2.6.32-573-*, except for the 
latest one; here's /etc/grub.conf

root at onavenuea ~> more /etc/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this 
file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda3
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.32-573.12.1.el6.x86_64)
 	root (hd0,0)
 	kernel /vmlinuz-2.6.32-573.12.1.el6.x86_64 ro 
root=UUID=1d8767bf-b3a6-439a-b359-ba6b0a4f20cf nomodeset rd_NO_LUKS 
KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 rd_NO_MD 
SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_NO_LVM rd_NO_DM rhgb quiet
 	initrd /initramfs-2.6.32-573.12.1.el6.x86_64.img
title CentOS (2.6.32-504.23.4.el6.x86_64)
 	root (hd0,0)
 	kernel /vmlinuz-2.6.32-504.23.4.el6.x86_64 ro 
root=UUID=1d8767bf-b3a6-439a-b359-ba6b0a4f20cf nomodeset rd_NO_LUKS 
KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 rd_NO_MD 
SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_NO_LVM rd_NO_DM rhgb quiet
 	initrd /initramfs-2.6.32-504.23.4.el6.x86_64.img



Thank you.

Max Pyziur
pyz at brama.com