faimond: command not found

Have You tried accessing the binary with the full path?

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/sbin/faimond - from package: fai-server

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