tpmnv_defindex: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/sbin/tpmnv_defindex - from package: tboot

You may install the required package with command yum install {package}

Error in other languages:
tpmnv_defindex: bevel nie gevind nie
tpmnv_defindex: comandă negăsită
tpmnv_defindex: comando não encontrado
tpmnv_defindex: commande introuvable
tpmnv_defindex: command not found
tpmnv_defindex: käsku ei ole
tpmnv_defindex: không tìm thấy lệnh
tpmnv_defindex: komanda nerasta
tpmnv_defindex: Kommando nicht gefunden.
tpmnv_defindex: kommandot finns inte
tpmnv_defindex: komut yok
tpmnv_defindex: nie znaleziono polecenia
tpmnv_defindex: níor aimsíodh an t-ordú
tpmnv_defindex: no se encontró la orden
tpmnv_defindex: no s'ha trobat l'ordre
tpmnv_defindex: opdracht niet gevonden
tpmnv_defindex: parancs nem található
tpmnv_defindex: perintah tidak ditemukan
tpmnv_defindex: príkaz nenájdený
tpmnv_defindex: příkaz nenalezen
tpmnv_defindex: команда не найдена
tpmnv_defindex: командата не е открита
tpmnv_defindex: 命令找不到
tpmnv_defindex: コマンドが見つかりません