partclone.hfs+: 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/partclone.hfs+ - from package: partclone

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