fbo-alphatest-nocolor-ff: 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/lib64/piglit/bin/fbo-alphatest-nocolor-ff - from package: piglit

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

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