3
.
Setting NetworkManager service to off
Perform the following commands to set NetworkManager service to off.
a
.
Perform the following command to stop NetworkManager service.
# service NetworkManager stop
b
.
Perform the following command to set NetworkManager service to off.
# chkconfig NetworkManager off
c
.
Perform the following command to check that NetworkManager
service is off.
# chkconfig | grep NetworkManager
The following message is shown.
NetworkManager 0:off 1:off 2:off 3:off 4:off 5:off 6:off
4
.
Customizing etc/sysctl.conf
Set the following three:
a
.
Changing the console log level to 3.
This parameter sets the console log level to 3. By changing the level,
you can avoid guest screen overload, which can result in significant
deterioration of applications or in Linux hang-up.
Add the following line:
b
.
Enabling the Magic SysRq key
Edit or add the following.
Set this command to gather information when problem occurs.
c
.
Setting the NMI interrupt
Edit or add the following.
For early detection of device or driver failure, this command brings
the Kernel into a panic state in the event of NMI.
5
.
Customizing /boot/grub/grub.conf
(For EFI boot, /boot/efi/EFI/redhat/grub.conf)
Set the following in grub.conf:
¢
Comment out "splashimage=(hd0,0)/grub/splash.xpm.gz".
When "
splashimage=(hd0,0)/grub/splash.xpm.gz
" is commented
out for EFI boot in RHEL 6.5, however, the login prompt will not
appear on the remote console. If you use the remote console, move
the string before the line "
title Red Hat Enterprise Linux
(2.6.32-220.el6.x86_64)
" without commenting out the string. In
2-24
Red Hat Enterprise Linux 6
Hitachi Compute Blade Series OS Installation Guide for Red Hat Enterprise Linux
