Topic: Backing up and cloning Chumbies
I have two Infocast 8's that I am playing with... well, I'm playing with one at the moment. Before I go too far and blow something up I thought it might be a good idea to back up the SD card like so:
dd if=/dev/mmcblk0 bs=32M | gzip -c > /mnt/usb/infocast8.img.gz
Is this sufficient to back up the SD card from within the device such that if I completely nuked the software (failboot) and had to restore it (using an external system) I could just reload the image onto the SD card and be back in business?
If the answer to Q1 is true, would I encounter any issues if I were to load the image onto the SD card of the second BB8 device? I basically want to make both machines identical post-tweaking, and thought this might be a shortcut to doing so (rather than having to recreate all my work on the second unit).
If there is anything device-specific on the media, could I tweak some files to make it work?
(P.S.: piping dd through gzip takes a goofy long time on this thing!)