search for: nfsversver

...APPEND line to force: NFS version3, change r/wsize, use tcp protocol and change the sec from null to sys (null seems to be the parameter that affects the NFS ownership/permission). My /tftpboot/pxelinux.cfg/default file contains the following: nfsroot=192.168.16.5:/export/images/centos51_x86-64,nfsversvers=3,tcp,rsize=32768,wsize=32768,sec=sys ip=dhcp 5. All options are honored except for the "sec=sys" option. Below is the output of the /proc/cmdline: /proc/cmdline: root=/dev/nfs rw nfsroot=192.168.16.5:/export/images/centos51_x86-64,nfsvers=3,tcp,rsize=32768,wsize=32768,sec=sys ip=dhc...