Sometimes, after the installation of our RedHatEnterpriseLinux , RAM of our pc could not be detected completely , we can " suggest " the real RAM indicated by a simple command line kernel Grub.
Control:
$ cat / proc / meminfo
Setting, for example, a 1GB of RAM ,:
# gedit / boot / grub / grub.conf
add command mem =1024M
like this:
# 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 related to / boot / , eg.
# root ( hd0 , 5)
# kernel / vmlinuz -version ro root = / dev/sda8
# initrd / initrd -[ - generic ] version.img
# boot = / dev / sda
default = 0
timeout = 5
splashimage = ( hd0, 5) / grub / splash.xpm.gz
hiddenmenu
password - md5 $ 1 $ $ wht/GQ1W KXeMa9zlHX0N0rld08uDL1
title Red Hat Enterprise Linux Client ( 2.6.18 - 194.3.1.el5PAE )
root ( hd0 , 5)
kernel / vmlinuz -2.6.18- 194.3.1.el5PAE ro root = LABEL = / rhgb quiet pci = pci = nommconf routeirq mem = 1024M
initrd / initrd -2.6.18- 194.3.1.el5PAE.img
Next reboot and you're done .
