Question

Install Unison In CentOS 7

Posted October 23, 2014 20.1k views

Hello I has CentOS 6 and unison installed and worked great and now I am using CentOS 7 and unison does not even exist. I don’t want to install EPEL for CentOS 6 when EPEL exist for CentOS 7. The sad part is EPEL 7 does not have unison.

Thanks

Add a comment
staysynchronize
By:
staysynchronize
Add a comment
2 comments
  • staysynchronize October 23, 2014
    Reply Report

    I tried

    rpm -Uvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-2.noarch.rpm
yum update
yum install unison

    And the package don’t exist.

    As you can see from the repo the Unison don’t exist:
    http://dl.fedoraproject.org/pub/epel/7/x86_64/u/

    However it exist for older 6 EPEL
    http://dl.fedoraproject.org/pub/epel/6/x86_64/

    And I want to avoid using old EPEL if possible.
    I am open to compile from source but having doing that as well.

    unison-2.40.102]# make
/bin/sh: ocamlc: command not found
/bin/sh: ocamlc: command not found
ocamlc -o mkProjectInfo unix.cma str.cma mkProjectInfo.ml
make: ocamlc: Command not found
UISTYLE = text
Building for Unix
NATIVE = true
THREADS = false
STATIC = false
OSTYPE =
OSARCH =
make tags
/bin/sh: ocamlc: command not found
/bin/sh: ocamlc: command not found
make[1]: Entering directory `/root/unison-2.40.102'
ocamlc -o mkProjectInfo unix.cma str.cma mkProjectInfo.ml
make[1]: ocamlc: Command not found
if [ -f `which etags` ]; then \
    etags *.mli */*.mli *.ml */*.ml */*.m *.c */*.c *.txt \
          ; fi 
which: no etags in (/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/www/.local/bin:/home/www/bin)
/bin/sh: line 1: etags: command not found
make[1]: [tags] Error 127 (ignored)
make[1]: Leaving directory `/root/unison-2.40.102'
  • asb October 23, 2014
    Reply Report

    Unfortunately, it doesn’t look like it’s packaged anywhere for CentOS 7 yet. To build it from source, you’ll need to install the ocaml package.

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×
Submit an Answer
2 answers
staysynchronize October 23, 2014

Got it. It works this way.

How to install Unison in CentOS 7

yum install ocaml ocaml-camlp4-devel ctags ctags-etags

cd ~
wget http://www.seas.upenn.edu/~bcpierce/unison//download/releases/stable/unison-2.40.102.tar.gz
tar xvfz unison-2.40.102.tar.gz
cd unison-2.40.102
make

sudo cp -v unison /usr/local/sbin/

cd ~
rm -fr unison*
Reply Report
staysynchronize October 24, 2014

One more thing.
You also have to place the “unison” binary in the “/usr/bin” folder else you will get this error from the other end server where you installed unison.

Contacting server...
bash: unison: command not found
Fatal error: Lost connection with the server

so do the following

sudo cp -v unison /usr/local/sbin/
sudo cp -v unison /usr/bin
Reply Report

Looking for something else?

Ask a new question Search for more help