Custom iso centos 7

Hello,

I want to build a custom iso for CentOS7 for installing it via VNC.

isolinux/isolinux.cfg

[...]

label linux menu label Install CentOS 7 kernel vmlinuz append initrd=initrd.img vnc vncconnect=192.168.1.10 headless ip=192.168.1.51 gateway=192.168.1.1 >netmask=255.255.255.0 dns=8.8.8.8 ksdevice=eth0 inst.stage2=hd:LABEL=CentOS7_VNC lang=en_US keymap=it

[...]

Build command:

xorriso -as mkisofs -r -R -J -T -v -no-emul-boot -boot-load-size 4 -boot-info-table -V "CentOS7_VNC" -b isolinux/isolinux.bin -c isolinux/boot.cat -x "lost+found" -o /tmp/CentOS7_VNC .

Result: Imgur

Suggestion?