ooopss. it was sent private. all should see :) ---------- Forwarded message ---------- From: Hetz Ben Hamo <[EMAIL PROTECTED]> Date: May 6, 2007 11:30 PM Subject: Re: 4GB Memory question To: Noam Meltzer <[EMAIL PROTECTED]>
They were actually wrong. Hapends even to big RedHat.. Apparently, Anaconda knows only to detect MORE THEN 4GB. If I have 4GB, then it installs the standard kernel which only recognizes 3GB (iommu doesn't work). So the PAE kernel needs to be installed if => 4GB and not only if >4GB :) Thanks, Hetz On 5/6/07, Noam Meltzer <[EMAIL PROTECTED]> wrote:
http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/release-notes/RELEASE-NOTES-x86-en.html
During the installation process, Anaconda will automatically choose the kernel package to be installed. The kernel selected by default does not allow Red Hat Enterprise Linux 5 to detect more than 4GB of RAM. As such,
if
your system has more than 4GB of RAM, you need to install the kernel-PAE variant of the kernel after installation. Note that this does not apply when a virtual install is performed. I assume that maybe they ment "3GB"? On 5/6/07, Hetz Ben Hamo <[EMAIL PROTECTED]> wrote: > > Hi people, > > I have here 2 "think center" machines, each with 4GB RAM each and I'm > using CentOS 5 with them. > BIOS reports correctly that the machine has 4GB RAM, however Linux > begs to differ: > > # free > total used free shared buffers
cached
> Mem: 3098212 235696 2862516 0 16608 164824 > -/+ buffers/cache: 54264 3043948 > Swap: 4096564 0 4096564 > > So BIOS says "4", Linux says "3". > What kernel parameters can I use to "convince" Linux that I really > have 4GB RAM? I don't think I need the HUGEMEM kernel since it only > deals with >4 GB RAM and RedHat has "united" all the bigmem stuff into > 1 kernel. > > Any suggestions? > > Thanks, > Hetz > > -- > Skepticism is the lazy person's default position. > Visit my blog (hebrew) for things that (sometimes) matter: > http://wp.dad-answers.com > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] > >
-- Skepticism is the lazy person's default position. Visit my blog (hebrew) for things that (sometimes) matter: http://wp.dad-answers.com
