gfxboot-compile: 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 Debian possible default full paths are:

/usr/bin/gfxboot-compile - from package: gfxboot-dev

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