osd_login: 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:

/sbin/osd_login - from package: nfs-common

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