efidecompress: 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/efidecompress - from package: vboot-utils

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

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