Root on ubuntu 12.04

raman · February 24, 2014, 4:03pm

hi
i installed root version 5.32.04 on ubuntu 12.04
i followed fixed location installation instructions from

http://root.cern.ch/drupal/content/installing-root-source

after that i typed command as: root

i got error as:

Couldn’t find font “-adobe-helvetica-medium-r---10-----*-iso8859-1”,
trying “fixed”. Please fix your system so helvetica can be found,
this font typically is in the rpm (or pkg equivalent) package
XFree86-[75,100]dpi-fonts or fonts-xorg-[75,100]dpi.
/usr/local/bin/root.exe: error while loading shared libraries: libCore.so: cannot open shared object file: No such file or directory

pamputt · February 24, 2014, 4:10pm

Hello, please have a look on [url=https://root-forum.cern.ch/t/adobe-helvetica-on-ubuntu-11-04/12319/1 post[/url].

raman · February 24, 2014, 4:41pm

hi
thanku

first error is solved
now when i tried to run root

i got error as:
/usr/local/bin/root.exe: error while loading shared libraries: libCore.so: cannot open shared object file: No such file or directory

pamputt · February 24, 2014, 4:46pm

Which kind of installation did you choose : location independent installation or fixed location installation?
In the first case, did you modify your .bashrc (or .cshrc)

In the second case, did you type

raman · February 24, 2014, 4:51pm

also if i use

before i run root

then i am getting no error

pamputt · February 24, 2014, 4:55pm

If so, add this line in your .bashrc to avoid you to type it before running ROOT.

raman · February 24, 2014, 5:00pm

i choose fixed location installation

i also used

i got error as:
/sbin/ldconfig.real: Can’t create temporary cache file /etc/ld.so.cache~: Permission denied

after that i log on as root by using
su
and then used code:
ldconfig

raman · February 24, 2014, 5:07pm

i added line
source /home/raman/Downloads/root/bin/thisroot.sh
in my .bashrc

then i closed the terminal and i oened the terminal

i tried running root i still got the same error

pamputt · February 24, 2014, 5:12pm

[quote=“raman”]i added line
source /home/raman/Downloads/root/bin/thisroot.sh
in my .bashrc

then i closed the terminal and i oened the terminal

i tried running root i still got the same error[/quote]
Very strange because if you type this line before running ROOT and you have no error after then this line should be loaded when you start a new session in your terminal.
Are you sure you use a bash terminal and not a csh one (or other)?

Also, did you add bin/ to your PATH and lib/ to your LD_LIBRARY_PATH variables?

raman · February 24, 2014, 6:02pm

after adding line
source /home/raman/Downloads/root/bin/thisroot.sh

i didnot used

now after doing that i am getting no error.
Thanku
but since i had used fixed location installation
do i still need to add bin/ to PATH and lib/ to LD_LIBRARY_PATH variables .

pamputt · February 25, 2014, 8:27am

So, does it work after adding the line in your .bashrc or not.
If it works, then you do not need to modify other stuff.
If not, then could you show the output of the command

raman · February 25, 2014, 9:50am

yes
it is working after adding that line in .bashrc

and output of command

is:
/usr/local/bin/root

pamputt · February 25, 2014, 10:00am

Fine, so you do need to modify other stuff.
It works fine now

raman · February 25, 2014, 10:47am

hi
i tried to run script in root using

i got error as:
Error in TApplication::ExecuteFile: macro not found in path .:/usr/local/share/root/macros:

can you help?

pamputt · February 25, 2014, 10:51am

If you are in the directory where FirstContour.C is located, just type

raman · February 25, 2014, 5:56pm

i first changed to directory root and then to directory where my script FirstContour.C is

then i simply typed

i got error as:
.x: command not found

raman · February 25, 2014, 6:07pm

i changed to directory where my script is

then i typed

now i got the contours

raman · February 25, 2014, 6:08pm

i changed to directory where my script is

then i typed

now i got the contours

raman · February 26, 2014, 9:34am

hi
i changed to directory where my script is and then used

i got contour diagram

raman · February 26, 2014, 10:10am

hi
i had already compiled root and to use pythia as a plugin to root , i configured root again using

--enable-pythia8 --with-pythia8-incdir=$PYTHIA8/include --with-pythia8-libdir=$PYTHIA8/lib

then i tried to run script

i got error as:
root [0]
Processing pythia8.C…
Error in TUnixSystem::DynamicPathName: libEGPythia8[.so | .dll | .dylib | .sl | .dl | .a] does not exist in /home/raman/Downloads/root/lib://home/raman/Downloads/fastjet-install/lib:LD_LIBRARY_PATH:.:/home/raman/Downloads/root/lib::/home/raman/Downloads/root/cint/cint/stl
Error: Symbol TPythia8 is not defined in current scope pythia8.C:45:
Error: Symbol TPythia8 is not defined in current scope pythia8.C:45:
Error: type TPythia8 not defined FILE:/home/raman/Downloads/root/tutorials/pythia/./pythia8.C LINE:45
Error: Invalid type ‘TPythia8*’ in declaration of ‘pythia8’ pythia8.C:45:
*** Interpreter error recovered ***