mincgen: 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/mincgen - from package: minc-tools

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

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