I recently had to replace faulty disk using legacy BIOS booting,
and wanted to start with replicating my current partition table.
I began by using fdisk --list (which lists the partition table for all devices)
and noticed that I'm getting Partition 1 does not start on physical sector boundary.
for each of my partitions in a scary red font
(for reference this is how one of my partition 1 looks like:
/dev/sda1 34 2047 2014 1007K BIOS boot)
I then searched for the relevant section in the installation guide and found that by running sgdisk -a1 -n1:24K:+1000K -t1:EF02 $DISK from the third step in Disk Formatting it creates this partition.
Additionally, I wanted to understand why I'm getting this error so after a bit of googling around I found the following ArchWiki article which states that this warning can be disregarded.
I would like to suggest adding something similar to the guide in order to prevent further confusion regarding this manner.