On Jul 8, 2020, at 18:42, Ed Greshko <ed.greshko@greshko.com> wrote:
So, you think he meant fat or ntfs?  I can't recall an "msdos" file system.

No one in this thread is talking about filesystems, but instead disk petition tables. 

Linux and Windows On x86  use disks that are partitioned with a DOS partition table (or disk label for old Unix folks). It’s what has the Master Boot Record:

https://en.wikipedia.org/wiki/Master_boot_record

We now also use a GUID Partition Table for partitioning disks, and it’s required for UEFI. Most modern hardware supports GPT. 

https://en.wikipedia.org/wiki/GUID_Partition_Table

--
Jonathan Billings