Is there anyone of you knows because ps -ef is not working. We recently upgraded the server from Linux SLES12 to Linux SLES15.
When I try to ps -ef it only shows the below. It is suppose to show the processes of SID DE1. I know that the processes are running because the system is up and running fine.
ser03v044597:~ # ps -ef |grep DE1
root 29989 29940 0 03:34 pts/0 00:00:00 grep --color=auto DE1