sb2-start-qemuserver: 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/sb2-start-qemuserver - from package: scratchbox2

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

Error in other languages:
sb2-start-qemuserver: bevel nie gevind nie
sb2-start-qemuserver: comandă negăsită
sb2-start-qemuserver: comando não encontrado
sb2-start-qemuserver: commande introuvable
sb2-start-qemuserver: command not found
sb2-start-qemuserver: käsku ei ole
sb2-start-qemuserver: không tìm thấy lệnh
sb2-start-qemuserver: komanda nerasta
sb2-start-qemuserver: Kommando nicht gefunden.
sb2-start-qemuserver: kommandot finns inte
sb2-start-qemuserver: komut yok
sb2-start-qemuserver: nie znaleziono polecenia
sb2-start-qemuserver: níor aimsíodh an t-ordú
sb2-start-qemuserver: no se encontró la orden
sb2-start-qemuserver: no s'ha trobat l'ordre
sb2-start-qemuserver: opdracht niet gevonden
sb2-start-qemuserver: parancs nem található
sb2-start-qemuserver: perintah tidak ditemukan
sb2-start-qemuserver: príkaz nenájdený
sb2-start-qemuserver: příkaz nenalezen
sb2-start-qemuserver: команда не найдена
sb2-start-qemuserver: командата не е открита
sb2-start-qemuserver: 命令找不到
sb2-start-qemuserver: コマンドが見つかりません