gdbload: 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/bin/gdbload - from package: lx-gdb

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