Before starting a recovery run verify the source and destination have
not changed. This will prevent issues on some extreme edge cases but
the main goal is for disappearing source drives with heavy damage.
e.g. A very damaged source drive disappears mid-recovery, drops off and
before would need a restart, or unplug/replug, to continue. Now we can
attempt to re-detect the drive and resume recovery without leaving the
script. If for some reason the drive order were to change then we'll
avoid using the wrong source or destination device.
If tmux wasn't already running it would output an error but still work.
The new approach will suppress that since we're not concerned if it's
already running or not, just whether the desired session is.
Modified the live macOS args to support connecting to the HW-Diags
session remotely (more easily at least).
NOTE: This was unintentionally squashed so some details were lost
* Major updates to build_linux to support the current archiso scripts
* Most customize_airootfs.sh code has been moved elsewhere
* Using static files or links where possible
* Generating other files as needed in build_linux
* Syslinux configuration has been simplified
* Dropped i3
* Dropped rxvt-unicode in favor of termite
* Font rendering broke one too many times
* Dropped NetworkManager in favor of iwd/systemd-networkd
* Replaces old write_registry_settings()
* Uses tuples to combine all parts of the values
* e.g. ('SampleValue', 'SampleData', 'SZ', '32)
* This will allow merging multiple setting groups together
* Should be more readable than the old method
* Crash would occur under these circumstances:
* Disk Attributes test was not selected
* One or more other disk tests were selected
* A non-blocking attribute error was detected
