seismograph -- tools for producing CoreOS images

cgpt

A partitioning tool.

rootdev

Performs operations to discover and annotate the root block device

Originally inspired by the old rdev utility from util-linux but has been completely rewritten since then. git://git.debian.org/~lamont/util-linux.git / 717db2c8177203fe242ea35b31bc312abe9aa3c9

• Provides core functionality in a library: librootdev
• Walks sysfs to discover the block devices
• Supports resolving through to /sys/block/XXX/slaves/*/dev devices
• Will test and, optionally, symlink to the /dev entry for standard devices.
• Is testable.