pad_digest_utility: 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/bin/pad_digest_utility - from package: vboot-utils

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

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