I guess this wouldn't work.
A simple:
losetup /dev/loop0
partprobe /dev/loop0
mkdir XX
sudo mount /dev/loop0p2 XX
sudo cp /usr/bin/qemu-arm-static XX/usr/bin
sudo chroot XX
passwd
will tell you why ...
(I wrote that that you tp know how to change initial passwords for the future. This was the password for root e.g. You can do the same with /dev/sdX2 instead if you want to change it on the sd-card)
Back you come with:
sudo umount XX
losetup -d /dev/loop0