pmount: 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 CentOS possible default full paths are:

/usr/bin/pmount - from package: pmount

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/pmount - from package: pmount

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

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