diskimg: write disk images
Usage:
diskimg [-a algo] [-v] image device
Flags:
-a algo Select the hashing algorithm to use. The default
is 'sha256'. Specifying an algorithm of 'list'
will print the supported algorithms to standard
output and exit with error code 2.
-v Enable verbose (debug) output.
Examples:
Copying images/server.img to /dev/sda:
$ sudo diskimg images/server.img /dev/sda
Write a bladerunner node image to /dev/sda:
$ sudo diskimg -v ~/code/bladerunner/packer/build/cm4-cnode-ubuntu-22.04.2.img /dev/sda
opening image /home/kyle/code/bladerunner/packer/build/cm4-cnode-ubuntu-22.04.2.img for read
/home/kyle/code/bladerunner/packer/build/cm4-cnode-ubuntu-22.04.2.img 416d4c8f890904167419e3d488d097e9c847273376b650546fdb1f6f9809c184
opening device /dev/sda for rw
writing /home/kyle/code/bladerunner/packer/build/cm4-cnode-ubuntu-22.04.2.img -> /dev/sda
wrote 4151312384 bytes to /dev/sda
syncing /dev/sda
verifying the image was written successfully
OK
Motivation:
I wanted to write something like balena's Etcher, but commandline only.
Kyle Isom
237aa46ddd