supermin: 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/supermin - from package: supermin

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

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