mkqdisk: 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/sbin/mkqdisk - from package: cman

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

On Debian possible default full paths are:

/usr/sbin/mkqdisk - from package: cman

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

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