ubinize: 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/sbin/ubinize - from package: mtd-utils

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

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