bct_dump: 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/bct_dump - from package: cbootimage

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

On Debian possible default full paths are:

/usr/bin/bct_dump - from package: cbootimage

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

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