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Thread: How to turn openSUSE 12.2 into realtime system?

  1. #1

    Default How to turn openSUSE 12.2 into realtime system?

    Hi,

    I would like to take the openSUSE 12.2 and reconfigure with...

    CONFIG_PREEMPT=y

    CONFIG_PREEMPT_RT_FULL=y

    CONFIG_HIGH_RES_TIMERS=y

    CONFIG_IRQBALANCE=y



    I have tried to download the kernels http://kernel.org and compile them.
    I followed the instructions, however this fails to compile.


    Someone pointed this out:

    https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO
    I'm afraid this will leave me with a system completely different than openSUSE 12.2.


    I would like to convert the system I have with realtime characteristics, I don't need to create a kernel to load on another machine.


    Someone pointed this out:
    There is an unofficial build of a real-time kernel for openSUSE 12.2 on the open build service. Though if this is for something mission critical you need it for, I would contact the maintainer for information on the package first. software.opensuse.org:


    I tried this, however there is no instructions on how to apply this to openSUSE 12.2.


    I tried to download an install the openSUSE 12.2 clone kernel for my system, but when I reboot it fails to load.


    I' kind of stuck at the moment trying to make some progress!

    Any ideas/suggestions? What is the best way to accomplish this?


    Thank you,
    Augie

  2. #2
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    22,448

    Default Re: How to turn openSUSE 12.2 into realtime system?

    On 2012-11-06 16:36, AugieHenriques wrote:
    > I would like to convert the system I have with realtime
    > characteristics, I don't need to create a kernel to load on another
    > machine.


    If you want to start with the openSUSE kernel, the first step on the
    sources is "make cloneconfig". Then use "make menuconfig", add a new
    name, and do your changes.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" (Minas Tirith))

  3. #3

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Hi,
    There is no Makefile in the /usr/src/linux directory.
    I can't use any of the make options.
    Not sure why.
    Thank you,
    Augie

    Code:
    /usr/src/linux# ls
    total 448
    drwxr-xr-x  21 root root   4096 Nov  1 13:16 ./
    drwxr-xr-x   4 root root   4096 Nov  1 15:13 ../
    -rw-r--r--   1 root root   4320 Sep 26 12:05 .mailmap
    -rw-r--r--   1 root root  18693 Sep 26 12:05 COPYING
    -rw-r--r--   1 root root  94984 Sep 26 12:05 CREDITS
    drwxr-xr-x  97 root root  12288 Nov  1 13:16 Documentation/
    -rw-r--r--   1 root root 210306 Sep 26 12:05 MAINTAINERS
    -rw-r--r--   1 root root  17459 Sep 26 12:05 README
    lrwxrwxrwx   1 root root     50 Nov  1 13:16 README.SUSE -> ../../share/doc/packages/kernel-source/README.SUSE
    -rw-r--r--   1 root root   3371 Sep 26 12:05 REPORTING-BUGS
    drwxr-xr-x  29 root root   4096 Nov  1 13:16 arch/
    drwxr-xr-x   3 root root   4096 Nov  1 13:16 block/
    drwxr-xr-x   3 root root   4096 Nov  1 13:16 crypto/
    drwxr-xr-x 101 root root   4096 Nov  1 13:16 drivers/
    drwxr-xr-x  37 root root   4096 Nov  1 13:16 firmware/
    drwxr-xr-x  71 root root   4096 Nov  1 13:16 fs/
    drwxr-xr-x   2 root root   4096 Nov  1 13:16 init/
    drwxr-xr-x   2 root root   4096 Nov  1 13:16 ipc/
    drwxr-xr-x  10 root root   4096 Nov  1 13:16 kernel/
    drwxr-xr-x   9 root root   4096 Nov  1 13:16 lib/
    drwxr-xr-x   2 root root   4096 Nov  1 13:16 mm/
    drwxr-xr-x  55 root root   4096 Nov  1 13:16 net/
    drwxr-xr-x  11 root root   4096 Nov  1 13:16 samples/
    drwxr-xr-x   9 root root   4096 Nov  1 13:16 security/
    drwxr-xr-x  22 root root   4096 Nov  1 13:16 sound/
    drwxr-xr-x  13 root root   4096 Nov  1 13:16 tools/
    drwxr-xr-x   2 root root   4096 Nov  1 13:16 usr/
    drwxr-xr-x   3 root root   4096 Nov  1 13:16 virt/
    /usr/src/linux#

  4. #4

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Quote Originally Posted by AugieHenriques View Post
    There is no Makefile in the /usr/src/linux directory.
    Install kernel-devel RPM.

  5. #5

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Hi,
    How? I used Yast before to get what I had.
    I found this (see bellow), but luck.

    Thank you,
    Augie

    Code:
    /# sudo zypper in -t pattern kernel-devel
    Loading repository data...
    Reading installed packages...
    'kernel-devel' not found in package names. Trying capabilities.
    No provider of 'pattern:kernel-devel' found.
    Resolving package dependencies...
    
    Nothing to do.
    /#

  6. #6
    Join Date
    Feb 2010
    Location
    Germany
    Posts
    4,693

    Default Re: How to turn openSUSE 12.2 into realtime system?

    If you want the kernel development pattern then the name is devel_kernel
    Code:
    su -
    zypper in -t pattern devel_kernel
    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.2 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  7. #7

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Hi,
    Please see bellow...
    Same problem still.
    There is no Mkefile in the /usr/src/linux folder.
    Thank you,
    Augie

    Code:
    /usr/src/linux# zypper in -t pattern devel_kernel
    Loading repository data...
    Reading installed packages...
    'pattern:devel_kernel' is already installed.
    No update candidate for 'devel_kernel-12.2-5.5.1.i586'. The highest available version is already installed.
    Resolving package dependencies...
    
    Nothing to do.

  8. #8
    Join Date
    Feb 2010
    Location
    Germany
    Posts
    4,693

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Something is wrong with your system
    Code:
    martinh@ganymed:~> rpm -qf /usr/src/linux/Makefile
    kernel-devel-3.4.11-2.16.1.noarch
    reinstall forced the kernel-devel package
    Code:
    su -
    zypper in -f kernel-devel
    --
    PC: oS 12.2 x86_64 | i7-2600@3.40GHz | 16GB | KDE 4.8.5 | GeForce GT 420
    ThinkPad E320: oS 12.2 x86_64 | i3@2.30GHz | 8GB | KDE 4.9.2 | HD 3000
    eCAFE 800: oS 11.4 i586 | AMD Geode LX 800@500MHz | 512MB | lamp server

  9. #9

    Default Re: How to turn openSUSE 12.2 into realtime system?

    Hi,
    Still having the same issue.
    Please see bellow.
    Thank you,

    Augie

    Code:
    /usr/src/linux# zypper in -f kernel-devel
    Loading repository data...
    Reading installed packages...
    Forcing installation of 'kernel-devel-3.4.11-2.16.1.noarch' from repository 'openSUSE-12.2-Update'.
    Resolving package dependencies...
    
    The following package is going to be reinstalled:
      kernel-devel 
    
    1 package to reinstall.
    Overall download size: 8.1 MiB. No additional space will be used or freed after the operation.
    Continue? [y/n/?] (y): y
    Retrieving package kernel-devel-3.4.11-2.16.1.noarch                                                                                                                          (1/1),   8.1 MiB ( 39.2 MiB unpacked)
    Retrieving: kernel-devel-3.4.11-2.16.1.noarch.rpm ...............................................................................................................................................[done (3.7 MiB/s)]
    Installing: kernel-devel-3.4.11-2.16.1 ......................................................................................................................................................................[done]
    /usr/src/linux#

  10. #10
    Join Date
    Jun 2008
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    Blog Entries
    14

    Default Re: How to turn openSUSE 12.2 into realtime system?

    On Tue 06 Nov 2012 08:06:02 PM CST, AugieHenriques wrote:


    Hi,
    Still having the same issue.
    Please see bellow.
    Thank you,

    Augie


    Code:
    --------------------
    /usr/src/linux# zypper in -f kernel-devel
    Loading repository data...
    Reading installed packages...
    Forcing installation of 'kernel-devel-3.4.11-2.16.1.noarch' from
    repository 'openSUSE-12.2-Update'. Resolving package dependencies...

    The following package is going to be reinstalled:
    kernel-devel

    1 package to reinstall.
    Overall download size: 8.1 MiB. No additional space will be used or
    freed after the operation. Continue? [y/n/?] (y): y
    Retrieving package
    kernel-devel-3.4.11-2.16.1.noarch
    (1/1), 8.1 MiB ( 39.2 MiB unpacked) Retrieving:
    kernel-devel-3.4.11-2.16.1.noarch.rpm ...............................................................................................................................................[done
    (3.7 MiB/s)] Installing:
    kernel-devel-3.4.11-2.16.1 ......................................................................................................................................................................[done] /usr/src/linux#
    --------------------


    Hi
    I would not compile the kernel as root user, have a look at this thread
    and post from user lwfinger;
    http://forums.opensuse.org/pre-relea...ml#post2036276

    --
    Cheers Malcolm °¿° (Linux Counter #276890)
    openSUSE 12.2 (x86_64) Kernel 3.4.11-2.16-desktop
    up 8 days 21:22, 4 users, load average: 0.21, 0.11, 0.07
    CPU Intel i5 CPU M520@2.40GHz | Intel Arrandale GPU


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