bosserver: 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/sbin/bosserver - from package: openafs-fileserver

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

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