error when installing the Ocs Inventory. Appending installation info to /usr/lib64/perl5/perllocal.pod Creating Communication server log directory /var/log/ocsinventory-server Fixing Communication server log directory permissions chown: changing ownership of ‘/var/log/ocsinventory-server’: Operation not permitted [centos@ip-10-0-1-63 OCSNG_UNIX_SERVER_2.5]$ ls -l /var/log/ total 392 drwxr-xr-x. 2 root root 191 Jan 28 21:02 anaconda drwx------. 2 root root 23 Feb 20 15:58 audit -rw-r--r--. 1 root root 93 Feb 20 15:59 boot.log -rw-------. 1 root utmp 768 Feb 20 19:46 btmp drwxr-xr-x. 2 chrony chrony 6 Apr 12 2018 chrony -rw-------. 1 root root 131086 Feb 20 15:59 cloud-init.log -rw-r--r--. 1 root root 9688 Feb 21 18:01 cron -rw-r--r--. 1 root root 30294 Feb 20 15:58 dmesg -rw-------. 1 root root 1928 Feb 20 20:56 grubby -rw-r--r--. 1 root root 193 Jan 28 20:53 grubby_prune_debug drwx------. 2 root root 6 Nov 5 01:47 httpd -rw-r--r--. 1 root root 292292 Feb 21 15:16 lastlog -rw-------. 1 root root 204 Feb 20 15:59 maillog -rw-------. 1 root root 122144 Feb 21 18:01 messages -rw-r-----. 1 mysql mysql 2412 Feb 20 20:53 mysqld.log drwxrwxrwx. 2 apache root 6 Apr 12 2018 ocsinventory-server drwxr-xr-x. 2 root root 6 Oct 30 21:29 qemu-ga drwxr-xr-x. 2 root root 6 Jan 28 21:02 rhsm -rw-------. 1 root root 25447 Feb 21 18:01 secure -rw-------. 1 root root 0 Jan 28 20:54 spooler -rw-------. 1 root root 0 Jan 28 20:52 tallylog drwxr-xr-x. 2 root root 23 Feb 20 15:58 tuned -rw-rw-r--. 1 root utmp 4992 Feb 21 15:16 wtmp -rw-------. 1 root root 13133 Feb 21 15:23 yum.log Can somebody help me? I think it could be because I have to put sudo in the instruction ... but I do not know