floppy: 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

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 CentOS possible default full paths are:

/usr/bin/floppy - from package: util-linux-ng

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