qemu-make-debian-root: 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:

/usr/sbin/qemu-make-debian-root - from package: qemu-utils

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