On Sun, Dec 28, 2025 at 09:52:14 -0600, Richard Owlett wrote:
> On 12/28/25 9:20 AM, Joe wrote:
> > First question: BIOS or UEFI booting? This is at hardware level, before
> > the OS is involved. Completely different boot system.
> >
>
> I assume BIOS as machine is a Dell Latitude E6410 {IIRCC introduced ~15
> years ago}. GParted reports partition table as "msdos".
>
> Is there a way to double check on a running machine?
Partition table "msdos" is a strong hint. You can also run "df" and
see if there is a /boot/efi file system mounted. If it's there, then
you're almost certainly using UEFI. If not, then probably Legacy BIOS.
Web search is also telling me that you should also look for the
/sys/firmware/efi directory. If it's there, then you're using UEFI,
and if not, you're using Legacy BIOS.
