vga_reset: 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/vga_reset - from package: svgalib

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

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