buildd-update-chroots: 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 Debian possible default full paths are:

/usr/bin/buildd-update-chroots - from package: buildd

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

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