https://community.hpe.com/t5/operating-system-linux/high-mem-support/m-p/2710361#M1532 Hello,<BR /><BR />Even in kernel 2.4, you have to compile the kernel with high memory support. However, as you are using RedHat, you may download a pre-configured kernel with high memory options at :<BR /><BR /><A href="ftp://ftp.redhat.com/pub/redhat/linux/updates/7.2/en/os/i686/" target="_blank">ftp://ftp.redhat.com/pub/redhat/linux/updates/7.2/en/os/i686/</A><BR /><BR />Choose the "kernel-enterprise" version.<BR />You may also have it on your RedHat install CDs.<BR /><BR />Good luck.<BR /><BR />Kodjo<BR /> Wed, 24 Apr 2002 17:27:05 GMT Kodjo Agbenu 2002-04-24T17:27:05Z https://community.hpe.com/t5/operating-system-linux/high-mem-support/m-p/2710360#M1531 I am running Redhat kernel 2.4.x version on an Athlon CPU. My physical mem is about 2 Gbytes but I am only seeing 1 Gbytes. Is there a way to turn on support for hig memory? Thanks. Wed, 24 Apr 2002 17:13:33 GMT https://community.hpe.com/t5/operating-system-linux/high-mem-support/m-p/2710360#M1531 K.C. Chan 2002-04-24T17:13:33Z https://community.hpe.com/t5/operating-system-linux/high-mem-support/m-p/2710361#M1532 Hello,<BR /><BR />Even in kernel 2.4, you have to compile the kernel with high memory support. However, as you are using RedHat, you may download a pre-configured kernel with high memory options at :<BR /><BR /><A href="ftp://ftp.redhat.com/pub/redhat/linux/updates/7.2/en/os/i686/" target="_blank">ftp://ftp.redhat.com/pub/redhat/linux/updates/7.2/en/os/i686/</A><BR /><BR />Choose the "kernel-enterprise" version.<BR />You may also have it on your RedHat install CDs.<BR /><BR />Good luck.<BR /><BR />Kodjo<BR /> Wed, 24 Apr 2002 17:27:05 GMT https://community.hpe.com/t5/operating-system-linux/high-mem-support/m-p/2710361#M1532 Kodjo Agbenu 2002-04-24T17:27:05Z