Sometimes when you try to start the OpenVPN server, you might get this error :
failed to find GID for group nogroup
First you need to check the group ‘nogroup’ exists ,
cut -d: -f1 /etc/group | grep no
This will display if the group exists : and if there is no group ‘nogroup’ ,add it
groupadd nogroup
This might solve your GID issues but might get another user UID error:
failed to find UID for user
To solve this , add the user ‘nogroup’ and add it to the group ‘nogroup’
useradd nogroup -g nogroup