# Problem to install RPM's and/or run dot on Centos 6 **URL:** \ **Category:** Help\ **Created:** [April 12, 2020, 10:10am UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36 "2020-04-12T10:10:05Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![magjac](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/magjac/32/16_2.png) [@magjac](https://forum.graphviz.org/u/magjac)\ **Post date:** [April 12, 2020, 10:10am UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/1 "2020-04-12T10:10:05Z")
Hi @Ellson (or y’all if you can help). **Installation problem:** When I install homebuilt RPM’s or RPM’s from [Index of /Packages/stable/centos/6/os/x86\_64](https://www2.graphviz.org/Packages/stable/centos/6/os/x86_64/), I get errors saying that **/bin/dot** is not found. After the installation, I find dot in **/usr/bin/dot**. Before the installation dot does not exist (as expected). **Execution problem:** When running dot after the installation, no output formats are supported. I don’t know if it’s related to the first problem or if it’s something different. **Context:** As you can see below, I’m doing this in a Docker container since I don’t have access to a native system. I don’t know if this has something to do with it or not. @Ellson: Perhaps you can try on your virtual machine? Why am I doing this? I’m trying to add automated tests to the GitLab CI/CD pipeline, see [Pipeline · Magnus Jacobsson / graphviz · GitLab](https://gitlab.com/magjac/graphviz/pipelines/135114024). As you can see, all other operating systems run fine. **Full log from manual attempt:** ```auto magjac@magjac-ThinkPad-T440s:~/graphviz-test$ docker run -it -v /home/magjac/graphviz-test:/repo graphviz:centos6 [root@0a7f0f086141 /]# whereis dot dot: [root@0a7f0f086141 /]# dot -V bash: dot: command not found [root@0a7f0f086141 /]# rpm --install --force /repo/Packages/development/centos/6/os/x86_64/graphviz-*.rpm /var/tmp/rpm-tmp.q2JL8v: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-core-2.43.20200406.0510-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.5Bdo6c: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-x-2.43.20200406.0510-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.Cz4XbV: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-gd-2.43.20200406.0510-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.VgtZwq: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-core-2.45.20200412.0919-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.W1Zgod: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-x-2.45.20200412.0919-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.ubVuK1: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-gd-2.45.20200412.0919-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.uT6YgS: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-visio-2.43.20200406.0510-1.el6.x86_64) scriptlet failed, exit status 127 /var/tmp/rpm-tmp.Bu9IXJ: line 1: /bin/dot: No such file or directory warning: %post(graphviz-plugins-visio-2.45.20200412.0919-1.el6.x86_64) scriptlet failed, exit status 127 [root@0a7f0f086141 /]# whereis dot dot: /usr/bin/dot /usr/share/man/man1/dot.1.gz [root@0a7f0f086141 /]# dot -V dot - graphviz version 2.45.20200412.0919 (20200412.0919) [root@0a7f0f086141 /]# echo 'digraph {a}' | dot -Tsvg Format: "svg" not recognized. Use one of: [root@0a7f0f086141 /]# ``` **Full log from pipeline:** Available at [centos6-test (#507804557) · Jobs · Magnus Jacobsson / graphviz · GitLab](https://gitlab.com/magjac/graphviz/-/jobs/507804557) ---
**Author:** ![Ellson](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/ellson/32/19_2.png) [@Ellson](https://forum.graphviz.org/u/Ellson)\ **Post date:** [April 12, 2020, 12:57pm UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/2 "2020-04-12T12:57:25Z")
1. I suspect at the root of the problem was a Redhat change sometime after centos6 where they merged /bin and /usr/bin and made /usr/bin a softlink to /bin. By explicitly using /bin/dot i was probably trying to exclude any user-installed copies in (e.g.) /user/local/bin. Maybe we can use something like ( PATH=/bin:/usr/bin dot -c ) … untested yet. Alternatively we maybe can just use: /usr/bin/dot -c 1. Something may be wrong with the dependency ordering since the post-install script in every plugin package tries to run “dot -c” to register new plugins and graphviz-plugins-core is getting install prior to graphviz which provides the dot bin. Maybe this doesn’t matter normally since it will get re-run later. John ---
**Author:** ![magjac](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/magjac/32/16_2.png) [@magjac](https://forum.graphviz.org/u/magjac)\ **Post date:** [April 12, 2020, 1:24pm UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/3 "2020-04-12T13:24:12Z")
Thanks. I filed an issue for the first problem: [Problem to install RPM’s on Centos 6 (#1695) · Issues · graphviz / graphviz · GitLab](https://gitlab.com/graphviz/graphviz/-/issues/1695) 1. Will you attempt a fix? 2. Yes, there is clearly something fishy with the dependencies. I tried to install one package at the time, but it was impossible since there seems to be circular dependencies. I ended up installing them all in one go to avoid it. ---
**Author:** ![Ellson](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/ellson/32/19_2.png) [@Ellson](https://forum.graphviz.org/u/Ellson)\ **Post date:** [April 12, 2020, 1:31pm UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/4 "2020-04-12T13:31:42Z")
I discovered another issue that was masking the problem on my system. If you remove all the graphviz rpms to try to get a clean install the config6 file and its parent directory is left behind. At least I can now recreate the problem on my ststem ---
**Author:** ![Ellson](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/ellson/32/19_2.png) [@Ellson](https://forum.graphviz.org/u/Ellson)\ **Post date:** [April 12, 2020, 4:23pm UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/5 "2020-04-12T16:23:59Z")
A fix is now available in the development series. ---
**Author:** ![magjac](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/magjac/32/16_2.png) [@magjac](https://forum.graphviz.org/u/magjac)\ **Post date:** [April 12, 2020, 9:31pm UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/6 "2020-04-12T21:31:37Z")
I still get an error message from the installation. See [centos6-test (#508012974) · Jobs · Magnus Jacobsson / graphviz · GitLab](https://gitlab.com/magjac/graphviz/-/jobs/508012974). It does however not seem to have any consequences and the second problem is gone. Now the whole pipeline runs fine: [Pipeline · Magnus Jacobsson / graphviz · GitLab](https://gitlab.com/magjac/graphviz/pipelines/135195845) 🕶 Thanks @Ellson😃 ---
**Author:** ![Ellson](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/ellson/32/19_2.png) [@Ellson](https://forum.graphviz.org/u/Ellson)\ **Post date:** [April 13, 2020, 1:28am UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/7 "2020-04-13T01:28:23Z")
Problem where dot -c was being run too early in fresh installs and generating a warning should now be fixed. ---
**Author:** ![magjac](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/magjac/32/16_2.png) [@magjac](https://forum.graphviz.org/u/magjac)\ **Post date:** [April 13, 2020, 6:40am UTC](https://forum.graphviz.org/t/problem-to-install-rpms-and-or-run-dot-on-centos-6/36/8 "2020-04-13T06:40:12Z")
Yes, that nailed it. Thanks 🙂