[LITMUS^RT] Cannot install the LITMUS-RT kernel

Meng Xu xumengpanda at gmail.com
Thu Jun 23 21:01:46 CEST 2016


On Thu, Jun 23, 2016 at 3:54 PM, shijunjie92 <shijunjie92 at gmail.com> wrote:
> But now the problem is, I cannot 'setsched' and 'showsched'.
> root at ubuntu:/home/thesis16# showsched
> showsched: command not found
> That is why I don't think I have installed the LITMUS-RT properly.


You have to go to the liblitmus library and use the program there to
set the scheduler.

Meng


>
> 2016-06-23
> ________________________________
> shijunjie92
> ________________________________
>
> 发件人:Björn Brandenburg <bbb at mpi-sws.org>
> 发送时间:2016-06-23 20:46
> 主题:Re: [LITMUS^RT] Cannot install the LITMUS-RT kernel
> 收件人:"litmus-dev"<litmus-dev at lists.litmus-rt.org>
> 抄送:
>
>
> On 23 Jun 2016, at 21:38, shijunjie92 <shijunjie92 at gmail.com> wrote:
>
> Hello:
>
> When I come to the GRUB I can choose the kernel 4.1.3, that's why I believe
> I have installed the kernel 4.1.3 successfully.
>
>
> We have no control over what your distribution puts into your bootloader’s
> configuration file. Since the base version of LITMUS^RT 2016.1 is Linux
> 4.1.3, it stands to reason that this is actually the LITMUS^RT kernel.
>
> As you asked, I have typed the command, the outputs are as follows:
> root at ubuntu:/home/thesis16# uname -a
> Linux ubuntu 4.1.3 #2 SMP PREEMPT Thu Jun 23 08:30:26 PDT 2016 x86_64 x86_64
> x86_64 GNU/Linux
> root at ubuntu:/home/thesis16# ls -l /proc
> […]
> root at ubuntu:/home/thesis16# ls -l /proc/litmus
> total 0
> -rw-r--r-- 1 root root 0 Jun 23 11:31 active_plugin
> dr-xr-xr-x 2 root root 0 Jun 23 11:31 cpus
> dr-xr-xr-x 2 root root 0 Jun 23 11:31 domains
> dr-xr-xr-x 4 root root 0 Jun 23 11:31 plugins
> -rw-r--r-- 1 root root 0 Jun 23 11:31 release_master
> -r--r--r-- 1 root root 0 Jun 23 11:31 stats
>
>
> You are running a LITMUS^RT kernel. These files exist only under LITMUS^RT,
> and not under vanilla Linux. So it looks like you are good to go.
>
> Actually, I am using the qcow version of litmus-rt in virtualbox. But
> virtualbox cannot support 8 cores, that's why I am try to install the new
> system based on VMWare.
>
>
> I’ve never tried LITMUS^RT in VMWare, but it should probably work. All
> measurements will of course be bogus due to the virtualization overhead.
>
> I wish you could upload one instruction video to youtube, make the green
> hands' life easier. Considering there is only one old version vedio on the
> youtube.
>
>
> We’d happily consider any contributions.
>
> Regards,
> Björn
>
>
> _______________________________________________
> litmus-dev mailing list
> litmus-dev at lists.litmus-rt.org
> https://lists.litmus-rt.org/listinfo/litmus-dev
>



-- 
-----------
Meng Xu
PhD Student in Computer and Information Science
University of Pennsylvania
http://www.cis.upenn.edu/~mengxu/




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