mincexpand: 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/mincexpand - from package: minc-tools

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

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