There should be only one active primary partition at any given time.
That's what the boot menus handle for you. They set the active flag,
then allow that partition to boot. I don't know what kind of chaos will
ensue if you have multiple active partitions, but it probably won't be
very helpful, and actually, shouldn't be allowed to happen, as most
software that sets active partitions unset all the others when setting
one of them active.
Only the active partition can actually boot, so if you look in a
partition manager like fdisk or something similar, there should be only
a single active partition, and the tool should not allow you to set a
second one active without automatically unsetting the others.
On 3/1/2024 5:19 PM, Felix Miata via Freedos-user wrote:
Liam Proven composed on 2024-03-01 17:10 (UTC):
DOS generally likes to be the 1st active primary partition on an
MBR-formatted drive.
Which DOS version(s) is/are bootable when more than one active primary is
present
on a drive?
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