Allow RHEL5 to support memory larger than 4 GB

There is a PC, and the Dell poweredge 755 system uses the original 1 GB memory of Rhel5 update1. Now we need to install 4 GB memory. After inserting 2 GB memory, check that the motherboard recognizes 4 GB memory, but RHEL5 can only recognize 3G a little more. In this case, we need to install the PAE kernel.

1. First install the pae kernel,

# Rpm-ivh kernel-PAE-2.6.18-53.el5.i686.rpm

2. Modify the startup option to enable the system to start with the pae kernel.

# Vim/boot/grub/menu. lst

Default = that line. If the PAE kernel is in the first line, it is changed to default = 0.

3. Restart linux. At this time, you should be able to see 4 GB memory.

Before Modification

Screen. width * 0.7) {this. resized = true; this. width = screen. width * 0.7; this. style. cursor = 'hand'; this. alt = 'click here to open new window \ nCTRL + Mouse wheel to zoom in/out';} "onclick =" if (! This. resized) {return true;} else {window. open ('HTTP: // www.bkjia.com/uploads/allianc131223/1g154g29-0.jpg');} "alt =" "src =" http://www.bkjia.com/uploads/allimg/131223/1G154G29-0.jpg "onload =" if (this. width> screen. width * 0.7) {this. resized = true; this. width = screen. width * 0.7; this. alt = 'click here to open new window \ nCTRL + Mouse wheel to zoom in/out';} "border = 0>

After modification

Screen. width * 0.7) {this. resized = true; this. width = screen. width * 0.7; this. style. cursor = 'hand'; this. alt = 'click here to open new window \ nCTRL + Mouse wheel to zoom in/out';} "onclick =" if (! This. resized) {return true;} else {window. open ('HTTP: // www.bkjia.com/uploads/allianc131223/1g1545j2-1.jpg');} "alt =" "src =" http://www.bkjia.com/uploads/allimg/131223/1G1545J2-1.jpg "onload =" if (this. width> screen. width * 0.7) {this. resized = true; this. width = screen. width * 0.7; this. alt = 'click here to open new window \ nCTRL + Mouse wheel to zoom in/out';} "border = 0>

1. Troubleshooting methods in RHEL 5 System
2. Create a version control server under RHEL 5.0
3. RHEL5 configure the remote machine to log on to the X window