grub-floppy: 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/grub-floppy - from package: grub-legacy

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

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