rpcbind forced userdel/groupdel on package install/upgrade?

[Chuck Anderson]

Why does rpcbind do this?  Shouldn't usermod be used instead of 
userdel/useradd?  It means on every single rpcbind package upgrade, 
the user is deleted and re-added.


#rpm -q --scripts rpcbind
preinstall scriptlet (using /bin/sh):
# if the rpc uid and gid is left over from the portmapper
# remove both of them.
/usr/sbin/userdel  rpc 2> /dev/null || :
/usr/sbin/groupdel rpc 2> /dev/null || : 

# Now re-add the rpc uid/gid
/usr/sbin/groupadd -g 32 rpc > /dev/null 2>&1
/usr/sbin/useradd -l -c "Rpcbind Daemon" -d /var/lib/rpcbind -g 32 \
    -M -s /sbin/nologin -u 32 rpc > /dev/null 2>&1
postinstall scriptlet (using /bin/sh):
/sbin/chkconfig --add rpcbind
preuninstall scriptlet (using /bin/sh):
if [ $1 -eq 0 ]; then
    service rpcbind stop > /dev/null 2>&1
    /sbin/chkconfig --del rpcbind
        /usr/sbin/userdel  rpc 2>/dev/null || :
        /usr/sbin/groupdel rpc 2>/dev/null || :
        rm -rf /var/lib/rpcbind
fi
postuninstall scriptlet (using /bin/sh):
if [ "$1" -ge "1" ]; then
    service rpcbind condrestart > /dev/null 2>&1
fi