bios_extract: command not found

Have You tried accessing the binary with the full path?

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/bios_extract - from package: bios_extract

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