bdii-update: 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/bdii-update - from package: bdii

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

On Debian possible default full paths are:

/usr/sbin/bdii-update - from package: bdii

You may install the required package with command apt-get install {package}

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