Many tanks again for your replaying @Rich
This is my isolinux.cfg
default mc
Label mc
Kernel /boot/vmlinuz
Append initrd=/boot/core.gz loglevel=0
Console 0
Implicit 0
Prompt 0
Timeout 0
Notice : I changed with your reply
But for now with this configuration I got :
early console in extract_kernel
Input_data
Input_len
Output
output_len
Kernel_total_size
Decompressing Linux
Booting the kernel