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RE: [CentOS] 1 GB RAM CentOS 4 only sees 885 MB
by Bryan J. Smith 21 Apr '05

21 Apr '05

Research the 1/3GB (32-bit) v. 4/4GB (PAE36) addressing models for Intel PAE36. If the kernel is the former, you'll run into the limit you have. If the kernel is the latter, you won't, but you'll take a paging hit as PAE36 swaps in/out 512MB pages from above 4GB (yes, I know, you only have 1GB but it's complicated to explain :-). BTW, *all* Athlons, both 32-bit and 64-bit, are actually 40-bit EV6 (Alpha 264), and not 32-bit/PAE36 addressing. But the Athlon uses 32-bit/PAE36 paging for compatibility. If you have a mainboard with a BIOS that has a "Linux" option for memory/IO addressing (very rare), there is a way to use the Linux kernel to get a "flat" 64GB model, as well as get the 32-bit Athlon's AGPgart (which is in the CPU, not the chipset - at least on the MP) to act like an I/O MMU for "safe" >4GB I/O transfers. Not even Intel's EM64T offers that BTW, I have *never* done this personally with a 32-bit Athlon. I only read about the kernel hack and the few mainboard BIOSes that support it (which prevents Windows from booting when set). Understand the 32-bit and 64-bit AMD processors are the same core design (even 48-bit/PAE52, although much is not enabled/useful on the 32-bit), including the *physical* 40-bit/1TB addressing of EV6. Intel is still using 32-bit/4GB GTL+ *physically* on even their latest EM64T processors, which is a major performance issue. -----Original Message----- From: ryan Date: 4/20/05 8:27 pm To: CentOS mailing list Subj: [CentOS] 1 GB RAM CentOS 4 only sees 885 MB Is this a known bug? Suprisingly google didn't turn up much. I'm running DDR RAM and a AMD XP processor on CentOS 4. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Accessing shell in CentOS 4 install
by Brendon Colby 21 Apr '05

21 Apr '05

Greetings, I'm having trouble accessing a shell when I boot into the installation of CentOS 4 (text mode). Alt-2 (which is where the shell should be started?) shows nothing (nothing any other console). How do I access the shell within the installation? Thanks. Brendon Colby

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NX (execshield)
by tobaccofarm 21 Apr '05

21 Apr '05

I heard something about execshield in some thread on OSnews.com. Does CentOS4 have an execshield compiled kernel? kind regards, Peter

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CentOS-announce Digest, Vol 2, Issue 10
by centos-announce-request＠centos.org 21 Apr '05

21 Apr '05

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2005:332 Low CentOS 4 i386 and x86_64 xloadimage - security update (Johnny Hughes) 2. CESA-2005:366 Important CentOS 4 i386 and x86_64 kernel - security update (Johnny Hughes) 3. CESA-2005:392 Critical CentOS 4 i386 and x86_64 HelixPlayer - security update (Johnny Hughes) 4. CESA-2005:383 Important CentOS 4 ia64 firefox - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 20 Apr 2005 09:34:08 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2005:332 Low CentOS 4 i386 and x86_64 xloadimage - security update To: centos-announce(a)centos.org Message-ID: <1114007648.5594.35.camel(a)myth.home.local> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2005:332 for i386 and x86_64 https://rhn.redhat.com/errata/RHSA-2005-332.html refers: The following updated files have been uploaded and are currently syncing to the mirrors: i386: xloadimage-4.1-34.RHEL4.i386.rpm x86_64: xloadimage-4.1-34.RHEL4.x86_64.rpm src: xloadimage-4.1-34.RHEL4.src.rpm install with this command: yum update xloadimage Thanks, Johnny Hughes

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kbd remove error
by Mark Quitoriano 21 Apr '05

21 Apr '05

hi guys i just partially upgrade centos 3.4 to centos 4(using apt-get) and im having a problem removing kdb 1.08-10.2, kbd 1.12-2 is already installed and im trying to remove kdb 1.08 through apt-get and rpm -e here's what happened when i use apt-get: # apt-get remove kbd#1.08-10.2 Reading Package Lists... Done Building Dependency Tree... Done The following packages will be REMOVED: kbd#1.08-10.2 0 upgraded, 0 newly installed, 1 removed and 20 not upgraded. Need to get 0B of archives. After unpacking 2018kB disk space will be freed. Do you want to continue? [Y/n] y Committing changes... Preparing... ########################################### [100%] error reading information on service keytable: No such file or directory error: %trigger(kbd-1.08-10.2) scriptlet failed, exit status 1 W: Some errors occurred while running transaction here's what happened when i use rpm: # rpm -e kbd-1.08-10.2 error reading information on service keytable: No such file or directory error: %trigger(kbd-1.08-10.2) scriptlet failed, exit status 1 -- Regards, Mark Quitoriano, CCNA

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firefox or mozilla won't start
by Jay 21 Apr '05

21 Apr '05

Greetings When I start firefox or mozilla I get an hourglass for 3 seconds then nothing happends. Dropping to a terminal and typing firefox just returns to the command line. I re-installed firrefox and it installs fine until I quit then the same situation happends. After re-installing firefox it will run but the same situation happens where it won't start. I have installed int my home directory or into /usr/local/firfox. ( Cent OS 4.0 with all patches applied. Firefox 1.0.2 ) Ideas? Thanks -Jay

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Forums
by Lee Parmeter 21 Apr '05

21 Apr '05

I created an account on the Forums this morning, but I got an error saying they were having a problem sending e-mail. I sent a message to the webmaster and no response either. So I can't post to the forum until my account is activated. Are the forums new? By the amount of traffic on the list, this must be where most people resolved their problems. I am thinkgng about installing CentOS 4 on my file server at home which is now running RH9. -- Lee Parmeter Emperor, linXos - The Flying Penguin http://www.linXos.com Linux Registered User #337161 'It's free. It works. Duh.'" - Eric Harrison "To announce that there must be no criticism of the president, or that we are to stand by the president, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public." � President Theodore Roosevelt "Patriotism is supporting your country all the time and your government when it deserves it." - Mark Twain God is not a republican or a democrat nor is His government a democracy! - Lee Parmeter The United States is NOT a democracy, it was founded as a Republic for a specific reason, to protect Liberty for all. In contrast, a democracy insures Liberty to the majority only! It is only recently that politicians have been calling the US a democracy! This is just NOT true! - Lee Parmeter __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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1 GB RAM CentOS 4 only sees 885 MB
by ryan 21 Apr '05

21 Apr '05

Is this a known bug? Suprisingly google didn't turn up much. I'm running DDR RAM and a AMD XP processor on CentOS 4.

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CentOS 4 and Intel P4 without Hyper-Threading vs. Intel P4 with Hyper-Threading
by Robert Hanson 21 Apr '05

21 Apr '05

Hello Does anyone know of any possible concerns in moving a "production" CentOS 4 install from one machine to another where the "only" difference is that the processor changes from a 1.8 Intel P4 "without" Hyper-Threading to a 3.0 Intel P4 "with" Hyper-Threading ? I am guessing not, yet I "have to" ask. Regards, - rh

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recompiling kernel
by ryan 20 Apr '05

20 Apr '05

Can anyone supply a link on a how-to (or provide intructions) on recompiling a centos 4 kernel? I'm trying my old rhel 3 commands and they arent working.

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