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Beldurin 
Mayor of Detnet
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Posted on: Jun. 28 2002,05:16 |
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Ok, background: I'm working on a beowulf class computing cluster. The director of the project wants to switch to a new software, Clustermatic. So I download the software and instructions. Now here's the problem.
The first step of the instructions say that you need to patch the kernel with the bproc.x.y.z patch. The example command says to go to /usr/src/linux and
type | Code Sample | | patch -p1 < ~/path_to_patch_file (in this case /root/Clustermatic/Tar \Files/bproc-2.3.9/patches/bproc-patch.2.3.9 I think) |
This function call terminates with an error. I think it's saying that it can't find /kernel-2.7.18-lanl/exec.c and another .c file. Sometime earlier I got an error saying that something about some header (.h) files as well.
Here's my preliminary diagnosis (I'll admit that I'm out of my element here). First of all, I'm doing this on RedHat 7.2. The default source directory for linux is (I think) /usr/src/linux whereas RedHat uses /usr/src/redhat, then SOURCES/,RPMS/,BUILD/, etc. This might be a problem. The other thing is that I don't think the guy that installed the linux installed the source files for the kernel, but I'm not positive. I tried to sift through the CD's and install the source rpms, but couldn't find one with the kernel headers for the i686 (PII, right?).
Help? Please?
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If someone's ungrateful and you tell him he's ungrateful, okay, you've called him a name.
You haven't solved anything.
-- zen and the art of motorcycle maintenance
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| Post Number: 2
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Darth Liberus
Emperor of Detnet
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Posted on: Jun. 28 2002,11:13 |
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1. grab the latest 2.4.x kernel source from www.kernel.org.
2. untar it into /usr/src/linux. curse red hat for being the Microsoft of the Linux world and always trying to "improve" things.
3. apply the patch with the command you were given. man patch might help.
4. make menuconfig (or make xconfig if you're running X) and select the features & modules you want.
5. make dep
6. make bzImage
7. make modules
8. make modules_install
9. cp /usr/src/linux/arch/i386/bzImage /vmlinuz # might be something other than /vmlinuz on redhat; check the image= line in /etc/lilo.conf
10. lilo # this updates lilo with the new kernel image
11. cross your fingers
12. reboot
Edited by Darth Liberus on Jan. 01 1970,01:00
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"let's travel around with our laptops, plug in, and destroy the very fabric of modern reality." -a2n3d7y
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| Post Number: 3
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blanalex
DetVet
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Posted on: Jun. 29 2002,18:57 |
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The thing might be that you're trying to apply a patch to the wrong version of the kernel distribution.
1- Even with RH, the kernel source always sits in /usr/src/linux, but it is in reality a symlink to /usr/src/linux-2.4.18-xx. /usr/src/redhat has nothing to do with the kernel, it's only for the building of RPM packages.
2- Red Hat, like many distros, adds some home made patches, go grab the latest source off ftp://ftp.kernel.org/pub/linux/kernel/v2.4/.
3- Check clustermatic's documentation, i'm sure they mention that the patch you want to apply is valid only with a specific version of the kernel. Again, grab that version off ftp.kernel.org and follow Darth Liberus' instuctions
4- I suggest you remove the /usr/include/linux directory, and create a symlink with ln -s /usr/src/linux/include/linux /usr/include/linux to make sure all you're going to compile will use the right version of the linux headers.
that's pretty much it
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#define QUESTION (2b)||!(2b)
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| Post Number: 4
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Beldurin
Mayor of Detnet
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Posted on: Jun. 29 2002,19:08 |
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that's part of the problem...there is no /usr/src/linux directory
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If someone's ungrateful and you tell him he's ungrateful, okay, you've called him a name.
You haven't solved anything.
-- zen and the art of motorcycle maintenance
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| Post Number: 5
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blanalex
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Posted on: Jun. 29 2002,19:27 |
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| Quote (Beldurin @ 29 June 2002,06:08) | | that's part of the problem...there is no /usr/src/linux directory |
eheheh that's THE problem 
you can't apply a patch against something you don't have :-p
check Clustermatic's doc, determine what version of linux source you must have, download it from kernel.org (use the link above). The file you want is linux-2.4.xx.tar.gz
go in /usr/src and unpack the tarball with tar zxvf <path of the downloaded file>/linux-2.4.xx.tar.gz, then follow DL instructions
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#define QUESTION (2b)||!(2b)
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| Post Number: 6
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forumwhore
Fear Me, I Am Change.
Group: Members
Posts: 3282
Joined: Dec. 2001
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Posted on: Jun. 29 2002,20:34 |
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If you are really and truly stuck, I can forward your question to webhost; he knows more about linux etc than all of us put together.
However, you *must go through me.
If you write him directly he'll have no idea who you are.
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Posting from; El Pueblo de Nuestra Senora la Reina de Los Angeles de Porciuncula
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| Post Number: 7
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incubus
mack daddy
Group: Admins
Posts: 1316
Joined: May 2000
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Posted on: Jun. 29 2002,22:35 |
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Your problem is as above. The reason you didn't have a /usr/src/linux directory is that you didn't install the kernel-sources or kernel-devel RPM (or whatever it's called).
As people have said you WILL need to get a vanilla kernel from www.kernel.org if you want your patches to work.
Finally if you want high performance on your cluster without the bloat move so something a bit more tight like Gentoo Linux ... 
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Quit your job. Start a fight. Prove you're alive. If you don't claim your
humanity you will become a statistic. You have been warned ....... Tyler
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| Post Number: 8
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CaptainEO
f(t)
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Posted on: Jun. 30 2002,06:22 |
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| Quote | | 4- I suggest you remove the /usr/include/linux directory, and create a symlink with ln -s /usr/src/linux/include/linux /usr/include/linux to make sure all you're going to compile will use the right version of the linux headers. |
Just an aside - DO NOT DO THIS. EVER. (unless you are compiling glibc yourself - which I don't recommend you do either =).
The headers in /usr/include/linux must match the installed version of glibc. They are there for the benefit of user-space, they have nothing to do with the kernel you are running...
Sorry for jumping on you; this just comes up very often on the LKML, and we want to stamp out this bad habit forever =).
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| Post Number: 9
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Beldurin
Mayor of Detnet
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Posted on: Jun. 30 2002,23:06 |
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ok, I've made it pretty far thanks to you guys. Here' s the new problem:
went through the software install, did the make and the make install. The next step in the instructions is to modprobe bproc. However, I get the following message "modprobe: Can't locate module bproc"
now what?
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If someone's ungrateful and you tell him he's ungrateful, okay, you've called him a name.
You haven't solved anything.
-- zen and the art of motorcycle maintenance
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| Post Number: 10
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CaptainEO
f(t)
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Joined: May 2001
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Posted on: Jul. 01 2002,04:31 |
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 6-->| Quote (Beldurin @ 30 June 2002,156) | | went through the software install, did the make and the make install. The next step in the instructions is to modprobe bproc. However, I get the following message "modprobe: Can't locate module bproc" |
When you are compiling the kernel (in /usr/src/linux), make sure you do:
make modules
make modules_install
in addition to the usual make bzImage or make install. This will compile any kernel modules you have configured, and copy them into /lib/modules/<kernel version>/kernel. (modprobe will look in there for bproc.o, and it's giving you the error because it can't find it)
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