mdm-run: 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 Debian possible default full paths are:

/usr/bin/mdm-run - from package: mdm

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

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