Hack-A-N900/Wall Of Bricks

Boot loop? hang? Congratulations, you made it! Please share how.

Tried to enforce bash as system default shell

How:

rm /bin/sh
ln -s /bin/bash /bin/sh

Result: boot loop.

Tried to overwrite /lib from a running system

How:

cp -a /somewhere/lib/* /lib/

Result:

Malfunction! Device shutdown in 10s

Tried to write a disk image to an extended partition

How:

# /dev/mmcblk0p4 is an extended partition
dd if=image.dd of=/dev/mmcblk0p4

Result: corrupt partition table