Update the descriptive text for the disk log console tools to remove
references to INT13, since these now work for both BIOS and UEFI disk
log consoles.
Leave the script names as {aws,gce,ali}-int13con, to avoid breaking
any existing tooling that might use these names.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Following the example of aws-int13con, add a utility that can be used
to read the INT13 console log from a used iPXE boot disk in Google
Compute Engine.
There seems to be no easy way to directly read the contents of either
a disk image or a snapshot in Google Cloud. Work around this
limitation by creating a snapshot and attaching this snapshot as a
data disk to a temporary Linux instance, which is then used to echo
the INT13 console log to the serial port.
Signed-off-by: Michael Brown <mcb30@ipxe.org>