reflasher for the boxes

! Note this is very very very very custom and will murder your SD card.

Procedure for re-flashing

Prepare boot.scr
- Go to boot/
- Edit boot.cmd to set the dhcp server IP
- Run mkimage -T script -A arm -d boot.cmd boot.scr
- Copy boot.scr to the boot partition of the box, currently /mnt/boot
Prepare tftp setup
- Run ./install.sh /path/to/tftproot
Copy the image
- Find the sdcard image
- Copy the image in some way to the SSD drive (/mnt/ssd) on the box
- The image must be named FLASH.IMG
Reboot the box
- The reflash takes ~20 minutes
Pray

Get the latest d-i from https://d-i.debian.org/daily-images/armhf/daily/netboot/
Unpack initrd.gz
Install some extra udebs in it (available in udebs/)
- vfat (if you want to touch the boot partition)
- ext4 (for the ssd)
- sata modules (for the ssd)
Rewrite init to do crap
- Load modules
- Wait for the devices to show
- Mount the ssd
- dd FLASH.IMG from the ssd to the card
- sync, sync, sync
- echo b > /proc/sysrq-trigger
Rebuild initrd, boot it