amiga-fdisk: command not found

Have You tried accessing the binary with the full path?

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:

/sbin/amiga-fdisk - from package: amiga-fdisk-cross

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