Am 28.10.21 um 15:41 schrieb Troy Dawson:
> 
> 
> On Thu, Oct 28, 2021 at 4:56 AM Götz Waschk <[log in to unmask] 
> <mailto:[log in to unmask]>> wrote:
> 
>     Am 26.10.21 um 04:27 schrieb Patrick J. LoPresti:
>      > On Mon, Oct 25, 2021 at 5:45 PM Nico Kadel-Garcia
>     <[log in to unmask] <mailto:[log in to unmask]>
>      > <mailto:[log in to unmask] <mailto:[log in to unmask]>>> wrote:
>      >  >
>      >  > It's getting harder.
>      >
>      > Singularity containers for CentOS 8 (and latest Ubuntu etc.) work
>     fine
>      > on SL7, for now. Of course this is not a long-term solution, since
>      > "kernel too old" will surely crop up eventually.
>     I just like to add that this has already happened to me with an Ubuntu
>     20.04 LTS container running on
>     SL7:
> 
>     [wgs34:U20] ~ % gnuplot-qt
>     gnuplot-qt: error while loading shared libraries: libQt5Core.so.5:
>     cannot open shared object file: No such file or directory
>     [wgs34:U20] ~ % ldd /usr/bin/gnuplot-qt|fgrep Qt5
>               libQt5Network.so.5 =>
>     /lib/x86_64-linux-gnu/libQt5Network.so.5
>     (0x00007f6cf5da9000)
>               libQt5Gui.so.5 => /lib/x86_64-linux-gnu/libQt5Gui.so.5
>     (0x00007f6cf57be000)
>               libQt5Core.so.5 => not found
>               libQt5Core.so.5 => not found
>               libQt5Core.so.5 => not found
>     [wgs34:U20] ~ % ls -l /lib/x86_64-linux-gnu/libQt5Core.so.5*
>     lrwxrwxrwx 1 root root      20 Apr  9  2020
>     /lib/x86_64-linux-gnu/libQt5Core.so.5 -> libQt5Core.so.5.12.8
>     lrwxrwxrwx 1 root root      20 Apr  9  2020
>     /lib/x86_64-linux-gnu/libQt5Core.so.5.12 -> libQt5Core.so.5.12.8
>     -rw-r--r-- 1 root root 5519624 Apr  9  2020
>     /lib/x86_64-linux-gnu/libQt5Core.so.5.12.8
> 
> 
> That doesn't have much to do with the container running on SL7, and more 
> that your gnuplot-qt was compiled on a different qt5 than is in the 
> container.
> 
> Without more details I couldn't exactly say more than make sure your 
> gnuplot-qt and qt5 libraries in yoru container are up to date.

Hi Troy,

it is related to the SL7 kernel. The container contains a standard 
Ubuntu 20.04 LTS installation with the default gnuplot package. The 
problem disappears when I run the same singularity container on 
AlmaLinux 8.4 or Ubuntu 18.04 LTS.

Regards,
Götz


-- 
Götz Waschk                            ° Phone:  +49 33762 77169
Deutsches Elektronen-Synchrotron DESY  ° E-Mail: [log in to unmask]
Platanenallee 6
15738 Zeuthen Germany