virt-p2v-server: 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/virt-p2v-server - from package: virt-v2v

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

Error in other languages:
virt-p2v-server: bevel nie gevind nie
virt-p2v-server: comandă negăsită
virt-p2v-server: comando não encontrado
virt-p2v-server: commande introuvable
virt-p2v-server: command not found
virt-p2v-server: käsku ei ole
virt-p2v-server: không tìm thấy lệnh
virt-p2v-server: komanda nerasta
virt-p2v-server: Kommando nicht gefunden.
virt-p2v-server: kommandot finns inte
virt-p2v-server: komut yok
virt-p2v-server: nie znaleziono polecenia
virt-p2v-server: níor aimsíodh an t-ordú
virt-p2v-server: no se encontró la orden
virt-p2v-server: no s'ha trobat l'ordre
virt-p2v-server: opdracht niet gevonden
virt-p2v-server: parancs nem található
virt-p2v-server: perintah tidak ditemukan
virt-p2v-server: príkaz nenájdený
virt-p2v-server: příkaz nenalezen
virt-p2v-server: команда не найдена
virt-p2v-server: командата не е открита
virt-p2v-server: 命令找不到
virt-p2v-server: コマンドが見つかりません