ao-ejection: 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/ao-ejection - from package: altos

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

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