cpio: 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:

/bin/cpio - from package: cpio

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

On Debian possible default full paths are:

/bin/cpio - from package: cpio
/usr/lib/klibc/bin/cpio - from package: klibc-utils

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

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