An inexpensive, open-source system for automated, high-throughput, realtime observation and conditioning experiments.
These instructions are for developers who wish to clone an existing ATLeS box Raspberry Pi installation to create a new base OS image for installing on new boxes.
To save a disk image of a working/configured Raspberry Pi SD card:
[TODO: Could simplify to dd plus an automated script using loopback, https://github.com/Drewsif/PiShrink, and some of the steps below.]
Put card into card reader in a Linux machine.
(Optional) Use the dist/prep_image.sh script to remove unneeded files from
the card before cloning.
Unmount the partitions if auto-mounted (Ubuntu auto-mounts them)
$ sudo umount /dev/[device of auto-mounted partition[s]]
(Optional) Use gparted to shrink the root partition on the card to just
the used space plus a small buffer. (E.g., with 2.20GiB used, resize2fs
wouldn’t let me make it 2500MiB, but 3000MiB was okay.)
(Optional) Zero unused blocks in the root partition so the disk image can be
compressed more. Requires the zerofree utility. If /dev/sdc2 is the
root partition:
$ sudo zerofree -v /dev/sdc2
Determine the number of blocks now occupied. (Adapted from: http://raspberrypi.stackexchange.com/a/8314)
$ sudo fdisk -l /dev/[device of entire card (e.g., sdd)]
Prints the partition table.
Record ‘End’ of the final partition and the sector size.
Use dd to create the image using the size from the previous step.
$ sudo dd bs=[sector size] count=[end of final partition + 1] if=/dev/[device of entire card] of=atles_rpi_`date +%Y%m%d`.img status=progress