rmtsysd: 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/rmtsysd - from package: openafs-client

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

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