lvm-util: 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 Debian possible default full paths are:

/usr/sbin/lvm-util - from package: blktap-utils

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