Stuart Johnston wrote:
I have a couple of systems I am trying to setup as production servers using Debian stable. They have dual P3s and 2GB RAM.
Should work very nicely.
So far they seem a little slower than had I hoped (particularly the RAID 5). But then they have been running at half capacity without the proper kernel.
It looks like the standard kernel images in Debian stable do not support the 2GB of RAM.
The 2.4.18 kernel in woody does not. (So I assume you are looking at woody stable. The later kernels for sarge testing does have the CONFIG_HIGHMEM4G option enabled. So I deduce you are running woody.)
Yes, thank you.
But if you look at the 2.4.20 kernels in woody-proposed-updates you will find a precompiled kernel that does have CONFIG_HIGHMEM4G enabled.
I'm not familiar with woody-proposed-updates. Does it imply that these packages will eventually become default in woody/stable proper? Perhaps 3.0r2?
I'd like to avoid compiling my own kernel images if possible but it looks like that may be my best option.
Are there any other suggestions?
Add this line to your /etc/apt/sources.list file.
deb http://http.us.debian.org/debian/ woody-proposed-updates main contrib
Install the kernel from there. That is also a modular kernel and will need an initrd setup. Just follow the directions during the install. It will also pull in some other packages as dependencies such as initrd-tools and cramfsprogs. That is fine.
apt-get update apt-get install kernel-image-2.4.20-2-686-smp
Then I would comment out the proposed updates line from your sources.list file so that you don't get anything that you don't specifically want and rerun 'apt-get update'
My main reason for not wanting to compile my own kernel image is so that I can easily get security updates from security.debian.org without having to recompile. I assume that using proposed-updates I would loose this simplicity as well if the proposed-updates packages are not updated frequently.
Note that if you search the mailing list archives you will find lots of discussion about the 8139too driver being a module. If you happen to be using that you will need to add it to /etc/modules or run modconf and let it add the driver for you. Since that is built into the bf24 kernel it has tripped up many people when they upgraded to later modular kernels.
Yes, I noticed that too when I switched from bf24 to 2.4.18-686-smp. (Plus, the SCSI card and the RAID card switched places for some reason.)
Is there an easy way that I can find out which options a kernel-image package has compiled?
Thanks, Stuart Johnston
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