Re: install Kernel and GRUB in chroot.

[Dmitry <lbvf50.mobile@gmail.com>]

> Just copy files from LiveCD (it should have EFI/Boot/bootx64.efi) to the 
ESP partition on the USB stick.

As I understand right now `dd` command applied to a device will copy all 
information including partitions table. Thus:

dd if=debian-xx.iso of=/dev/sdb bs=4M status=progress; sync

Would just create a copy of device, with FileSystem and PartitionsTable.