lmbi: 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/lmbi - from package: pvm-examples

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