On Wed, Dec 9, 2020 at 10:05 AM Karl Vogel <vogelke+centos at pobox.com> wrote: [snip] > > FWIW, my 6.10 installation had this in /etc/redhat-release: > Red Hat Enterprise Linux Server release 6.10 (Santiago) > > Only to point out that while in CentOS (8.3, but the same in 7.x) the situation is like this: [g.cecchi at skull8 ~]$ ll /etc/redhat-release /etc/centos-release -rw-r--r-- 1 root root 30 Nov 10 16:49 /etc/centos-release lrwxrwxrwx 1 root root 14 Nov 10 16:49 /etc/redhat-release -> centos-release [g.cecchi at skull8 ~]$ [g.cecchi at skull8 ~]$ cat /etc/centos-release CentOS Linux release 8.3.2011 in Oracle Linux (eg 7.7) you get two different files: $ ll /etc/redhat-release /etc/oracle-release -rw-r--r-- 1 root root 32 Aug 8 2019 /etc/oracle-release -rw-r--r-- 1 root root 52 Aug 8 2019 /etc/redhat-release $ cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.7 (Maipo) $ cat /etc/oracle-release Oracle Linux Server release 7.7 This is generally done so that sw pieces officially certified only on upstream enterprise vendor and that test contents of the redhat-release file are satisfied. Using the lsb_release command on an Oracle Linux 7.6 machine: # lsb_release -a LSB Version: :core-4.1-amd64:core-4.1-noarch Distributor ID: OracleServer Description: Oracle Linux Server release 7.6 Release: 7.6 Codename: n/a # Gianluca