lnst-pool-wizard: 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/lnst-pool-wizard - from package: lnst-ctl

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

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