grub-terminfo: 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:

/sbin/grub-terminfo - from package: grub

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

On Debian possible default full paths are:

/usr/sbin/grub-terminfo - from package: grub-legacy

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

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