After I had increased the memory in my server from 2 GB to 4 GB, I found my server could see the memory about 3.5 GB only. I found this problem happened from my Kernel didn’t support so I would like to upgrade the Kernel so as to use my memory at 4 GB.
And these are steps for solve this problem.
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1. Upgrade the Kernel.
# yum install kernel-PAE2. If you would like to compile some software such as VMWare, you should install kernel-PAE-devel too. (Optional)
# yum install kernel-PAE-devel3. Change DEFAULTKERNEL=kernel-PAE in file /etc/sysconfig/kernel such as
# UPDATEDEFAULT specifies if new-kernel-pkg should make
# new kernels the default
UPDATEDEFAULT=yes
# DEFAULTKERNEL specifies the default kernel package type
DEFAULTKERNEL=kernel-PAE4. Reboot
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Aoddy
"It's not that I'm so smart, it's just that I stay with problems longer." Albert Einstein Invester | Developer | Defier | Cryptonian | Wife lover.
Is this for a 32 bit server?
I just checked my 64 bit server and it shows 4GB RAM as it should.
Hey RK,
Yes sir, this is a solution for 32 bits server. 😀