Mysterious use of bandwidth? Any tools to nail it?
Hi all, While I'm waiting for my kernel to compile I've been noticing that from time to time there's a lot of activity on my modem at times when I'm not doing anything to cause any transfers. My modem only has a single data LED, so I can't tell whether the data is coming or going. My guess is that it's just malicious packets from the internet splashing against my firewall, but I'd like to rule out the possibility that there's some malicious process running on my machine that's actively communicating with some other computer on the net. (If they're really out to get you it's not called paranoia. :-) Is there any simple tool that will show me (in realtime, preferably) any processes on my box that are accessing the PPP interface? FWIW, I'm running sarge on a Pentium box. Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: How can I make a kernel package that is _identical_ to those available for download?
I'm back after getting some sleep. Paul E Condon wrote: On Thu, Dec 30, 2004 at 01:45:46PM +1000, R G Cottrell wrote: Paul E Condon wrote: On Thu, Dec 30, 2004 at 12:17:44PM +1000, R G Cottrell wrote: Hi folks, I asked this on debian-kernel about 8 hours ago but didn't get any replies. I've tried about half a dozen times over the last year to compile a working kernel for my old 233MHz machine. I thought I might have had a defective processor (a K6) but I've changed it to a genuine Intel Pentium and still had no success. I can successfully install one of the precompiled kernel images, but compiling one on my box has failed so far. At one point I filed a bug report but Herbert Xu was unable/unwilling to help. I am currently running RC1 of sarge with a 2.4.27 kernel that I downloaded as a kernel image, but I've previously tried with 3.0r1 with 2.4.18 and other 2.4.x kernels, as well as an early 2.6.x kernel source. I now have: kernel-source-2.4.27_2.4.27-6_all.deb (30M) I thought I knew what to do with this, but my past failures in compiling kernels on this box make me wary. I also have kernel-image-2.4.27_2.4.27-6.tar.gz (95K) but I can't understand what I'm supposed to do with it. I've unpacked it but it seems to be for those who already know how it works - there's no readme or help I can see. I also have: kernel-build-2.4.27_2.4.27-6_i386.deb (8K) but I don't really know what to do with it either. I do have kernel-package installed. As far as I can tell, the latest testing kernel image for Pentium is: kernel-image-2.4.27-1-586tsc_2.4.27-6_i386.deb (11.5M) :-( Not any more. I wonder if I'll run into the compile-time bug described for the -6 version. We'll see. What commands do I need to issue in order to generate a .deb that is _identical_ to that? I assume I have to use make-kpkg, and it probably depends on the precise version of the compiler. The Debian way really does work. I suggest that you stick with it. I'd certainly prefer to be able to do it the Debian way. You use make-kpkg as your main tool. Making a kernel package that is _identical_ to the precompiled package that you have already downloaded is unwise. You need, at least, to change the version/rev.number or something so that your computer can distinguish between the two (and so that you can distinguish between the two in order to tell whether or not you have succeeded) Well, I was planning to rename the original, downloaded kernel-image, after verifying that it would boot my machine. It should. I'm currently running on the -2 suffixed kernel, so the -6 should work too, I hope. The instructions for setting up this change are in man page (I think). Choose an ID string that includes something personal, such as you initials. I think I see how to do this, now that I've been directed to: http://www.debian.org/doc/manuals/reference/ch-kernel.en.html Then copy the config file of the prepackaged kernel from /boot into the source tree under /usr, and follow the steps in the man page. Makes sense. Making a near identical copy of a Debian kernel package is a good training exercise, and good first step. If it fails, you know that your new kernel is not failing because of a poor choise of kernel config options, you are using the ones that you know work for your hardware. After you have succeeded at this exercise, you can start tweeking the config parms and recompiling. HTH The point of making one that is byte-for-byte identical to the downloaded kernel-image is to check for subtle errors. If I get a kernel-image that is similar but not identical, it would be difficult to rule out user error if the thing doesn't in fact boot. If I can create one that is identical, then customising it should be a snap. The kernel image (i.e. the actual file that is used to load the kernel into RAM) contains its own name, as internal data. You will have a muddle if you try to have two kernel images on your harddisk that have the same name. If you have an image whose name is different from what it thinks it is named you will also have a muddle. Think of a different way of verifying that you have succeeded. Surely it can't hurt to have an identical file sitting around on the hard drive. I can go back to booting the 2.4.26 kernel and avoid any problem with the modules, by scrubbing the 2.4.27 modules before installing any modules I compile. If you create a new kernel image package with a new name, but using the same config options, and then install this new package you will have a new config file in /boot which will have your new name and will contain the options selections that were used to produce it. Diff of this against the one that was already there is one check that you can do. But, diff of the kernel images will surely fail to show identity. Think of something
Re: How can I make a kernel package that is _identical_ to those available for download?
Paul E Condon wrote: On Thu, Dec 30, 2004 at 01:22:01PM +1000, R G Cottrell wrote: cancer wrote: as far as i know xconfig should read the .config file of the running kernel if there is no other. i have poor experience with that, but it worked for me for a couple of times. In my experience, make xconfig and make menuconfig both read the .config file in the source directory, which is present when you install the sources. I've tried copying the appropriate config file from the /boot directory and loading that, but without success. :-( I think all that is needed is to copy the appropriate config file from /boot and give it the name .config, and put it where xconfig and menuconfig expect to find it. You can know where that is by running menuconfig and seeing where it puts its version of config. i.e. first run menuconfig, but pay no attention to getting the config correct, just find where it is. Then overwrite it with a copy of config from /boot. Either wrong name or wrong place will cause failure. Sounds workable. Thanks again, Paul. I don't think I should try this stuff out right now - I've been up for about 22 hours. As tempting as it would be to let the thing compile while I sleep, I think I'll come back to it after some shut-eye when I'm less likely to make silly mistakes. Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: How can I make a kernel package that is _identical_ to those available for download?
Paul E Condon wrote: On Thu, Dec 30, 2004 at 12:17:44PM +1000, R G Cottrell wrote: Hi folks, I asked this on debian-kernel about 8 hours ago but didn't get any replies. I've tried about half a dozen times over the last year to compile a working kernel for my old 233MHz machine. I thought I might have had a defective processor (a K6) but I've changed it to a genuine Intel Pentium and still had no success. I can successfully install one of the precompiled kernel images, but compiling one on my box has failed so far. At one point I filed a bug report but Herbert Xu was unable/unwilling to help. I am currently running RC1 of sarge with a 2.4.27 kernel that I downloaded as a kernel image, but I've previously tried with 3.0r1 with 2.4.18 and other 2.4.x kernels, as well as an early 2.6.x kernel source. I now have: kernel-source-2.4.27_2.4.27-6_all.deb (30M) I thought I knew what to do with this, but my past failures in compiling kernels on this box make me wary. I also have kernel-image-2.4.27_2.4.27-6.tar.gz (95K) but I can't understand what I'm supposed to do with it. I've unpacked it but it seems to be for those who already know how it works - there's no readme or help I can see. I also have: kernel-build-2.4.27_2.4.27-6_i386.deb (8K) but I don't really know what to do with it either. I do have kernel-package installed. As far as I can tell, the latest testing kernel image for Pentium is: kernel-image-2.4.27-1-586tsc_2.4.27-6_i386.deb (11.5M) What commands do I need to issue in order to generate a .deb that is _identical_ to that? I assume I have to use make-kpkg, and it probably depends on the precise version of the compiler. The Debian way really does work. I suggest that you stick with it. I'd certainly prefer to be able to do it the Debian way. You use make-kpkg as your main tool. Making a kernel package that is _identical_ to the precompiled package that you have already downloaded is unwise. You need, at least, to change the version/rev.number or something so that your computer can distinguish between the two (and so that you can distinguish between the two in order to tell whether or not you have succeeded) Well, I was planning to rename the original, downloaded kernel-image, after verifying that it would boot my machine. It should. I'm currently running on the -2 suffixed kernel, so the -6 should work too, I hope. The instructions for setting up this change are in man page (I think). Choose an ID string that includes something personal, such as you initials. I think I see how to do this, now that I've been directed to: http://www.debian.org/doc/manuals/reference/ch-kernel.en.html Then copy the config file of the prepackaged kernel from /boot into the source tree under /usr, and follow the steps in the man page. Makes sense. Making a near identical copy of a Debian kernel package is a good training exercise, and good first step. If it fails, you know that your new kernel is not failing because of a poor choise of kernel config options, you are using the ones that you know work for your hardware. After you have succeeded at this exercise, you can start tweeking the config parms and recompiling. HTH The point of making one that is byte-for-byte identical to the downloaded kernel-image is to check for subtle errors. If I get a kernel-image that is similar but not identical, it would be difficult to rule out user error if the thing doesn't in fact boot. If I can create one that is identical, then customising it should be a snap. I've been through the process quite a few times (unsuccessfully) and read quite a bit, but it never seems to come out right. I have successfully compiled a kernel or three on a different machine using an old copy of red hat, and I've been programming in C and other languages on and off for almost 2 decades, but Debian kernels seem to give me trouble. Maybe it's just some subtle fault in this old box. Anyhow, thanks for the advice; we'll see how it goes. Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: How can I make a kernel package that is _identical_ to those available for download?
Benjamin A'Lee wrote: On Thu, Dec 30, 2004 at 12:17:44PM +1000 or thereabouts, R G Cottrell wrote: As far as I can tell, the latest testing kernel image for Pentium is: kernel-image-2.4.27-1-586tsc_2.4.27-6_i386.deb (11.5M) What commands do I need to issue in order to generate a .deb that is _identical_ to that? I assume I have to use make-kpkg, and it probably depends on the precise version of the compiler. http://www.debian.org/doc/manuals/reference/ch-kernel.en.html I assume that works; I don't bother making a .deb package and just compile it the non-Debian way. Thanks Benjamin, I've just had a look at that. Maybe an incantation based on that will do the trick. It'll take a few hours to find out, and I'm not too hopeful. I've tried it the non-debian way as well, and using sources from all over. If anyone else has any more hints, please sing out. Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: How can I make a kernel package that is _identical_ to those available for download?
cancer wrote: as far as i know xconfig should read the .config file of the running kernel if there is no other. i have poor experience with that, but it worked for me for a couple of times. In my experience, make xconfig and make menuconfig both read the .config file in the source directory, which is present when you install the sources. I've tried copying the appropriate config file from the /boot directory and loading that, but without success. :-( Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
How can I make a kernel package that is _identical_ to those available for download?
Hi folks, I asked this on debian-kernel about 8 hours ago but didn't get any replies. I've tried about half a dozen times over the last year to compile a working kernel for my old 233MHz machine. I thought I might have had a defective processor (a K6) but I've changed it to a genuine Intel Pentium and still had no success. I can successfully install one of the precompiled kernel images, but compiling one on my box has failed so far. At one point I filed a bug report but Herbert Xu was unable/unwilling to help. I am currently running RC1 of sarge with a 2.4.27 kernel that I downloaded as a kernel image, but I've previously tried with 3.0r1 with 2.4.18 and other 2.4.x kernels, as well as an early 2.6.x kernel source. I now have: kernel-source-2.4.27_2.4.27-6_all.deb (30M) I thought I knew what to do with this, but my past failures in compiling kernels on this box make me wary. I also have kernel-image-2.4.27_2.4.27-6.tar.gz (95K) but I can't understand what I'm supposed to do with it. I've unpacked it but it seems to be for those who already know how it works - there's no readme or help I can see. I also have: kernel-build-2.4.27_2.4.27-6_i386.deb (8K) but I don't really know what to do with it either. I do have kernel-package installed. As far as I can tell, the latest testing kernel image for Pentium is: kernel-image-2.4.27-1-586tsc_2.4.27-6_i386.deb (11.5M) What commands do I need to issue in order to generate a .deb that is _identical_ to that? I assume I have to use make-kpkg, and it probably depends on the precise version of the compiler. Thanks in advance. Regards, Rossc. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
