ldminfod: 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/ldminfod - from package: ldminfod

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

On Debian possible default full paths are:

/usr/sbin/ldminfod - from package: ldm-server

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

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