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    #1

    kernel recompile? is it worth it? what's the best way to do it?

    Now that i have kubuntu up and running, i have been thinking of compiling my own kernel... from what i have read it a custom kernel is supposed to give much better performance, and since my computer is sort of old (Dell Latitude L400 - Pentium III 700mhz, 256 RAM) it need as much help as it can get...

    also, it seems that the default kubuntu kernel doesn't like the sensors on my computer, since lm-sensors seems to be unable to get any data... and the laptop seems to get pretty hot from time to time...

    so, the question is: is the performance boost worth all the trouble?

    also, what's the best way to do it?

    thanks...
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    #2
    Re: kernel recompile? is it worth it? what's the best way to do it?

    KernelCompileHowto was the best source of info to compile yourself a kernel, but it seems to be missing (must be on its way to help.ubuntu.com/community )

    This guide is a bit less detailed, and only works for Edgy (or so the writer says), but if you don't want to wait a while, try https://wiki.ubuntu.com/KernelCustomBuild otherwise, I'd advise you to hold up a bit. Maybe install Xubuntu for a lighterweight desktop environment. The way to do it is:
    Code:
    sudo apt-get install xubuntu-desktop
    <br /><br />*temp. hiatus from forums due to comp + net broken* :&#039;(
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      #3
      Re: kernel recompile? is it worth it? what's the best way to do it?

      meh... kde it's not that slow... still runs faster than xp... my main concern is the fact that i think there is no support in the defaul kernel for the sensors on my laptop...

      i guess i'll wait... it's not like i am in a hurry or something...

      thanks...
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        #4
        Re: kernel recompile? is it worth it? what's the best way to do it?

        Hi,

        It's sure that you can earn on compiling yourself the kernel because you don't need all drivers which are included in ubuntu's...
        I've wrote down 5 lines to do it, but I have no specifical hardware, so I'm using the default kernel (from kernel.org) and compiling it with a lot of options less than in ubuntu, so it's starting twice faster and kde is even faster

        If you need these few lines to try by yourself, just ask me

        Cheers
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          #5
          Re: kernel recompile? is it worth it? what's the best way to do it?

          i'm prettu sure that i could configure it myself... my main questions are:

          what's the best way to get the source? (kernel.org, adept, etc)

          what do patches do, and how to use them?
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            #6
            Re: kernel recompile? is it worth it? what's the best way to do it?

            follow up question:

            i installed the i686 kernel, and the boost in performance was pretty nice, but...

            now i have 3 kernels installed... is it safe to uninstall the 2 that i don't use?
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              #7
              Re: kernel recompile? is it worth it? what's the best way to do it?

              Yes it's safe to remove old kernels, but it's safer to keep at least one older kernel on hand just in case the new kernel doesn't work quite as well as you thought it would.
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                #8
                Re: kernel recompile? is it worth it? what's the best way to do it?

                Originally posted by Kuroyume
                i'm pretty sure that i could configure it myself... my main questions are:

                what's the best way to get the source? (kernel.org, adept, etc)

                what do patches do, and how to use them?
                define best.
                Easiest: apt-get source
                Hardest: kernel.org >> Though you would theoretically would get a faster kernel if you apply only what you need, and omit unneeded modules, the difference wouldn't be by much

                And patches are modifications or fixes to the kernel code.
                <br /><br />*temp. hiatus from forums due to comp + net broken* :&#039;(
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                  #9
                  Re: kernel recompile? is it worth it? what's the best way to do it?

                  Originally posted by Kuroyume
                  now i have 3 kernels installed... is it safe to uninstall the 2 that i don't use?
                  yes, of course!
                  anyway, it may be useful if you keep the i386 kernel, just in case something goes wrong. in this case you have a fully-functional kernel to boot your machine
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                    #10
                    Re: kernel recompile? is it worth it? what's the best way to do it?

                    Try here: http://doc.gwos.org/index.php/Kernel_Compilation_Dapper
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