Is it possible to access and modify Bios from the OS?

[pcfan]

Indeed.

[i_ri]

hello pcfan
Similar: laptop hooked with second display. There is no operating system drive connected. The second display has view of bios.

Will disconnect all drives force yours to show bios?
"*PS Bios in this machine can be access by pressing an small side button" Yes it is the tiniest of button on a machine here. Supposing to need to press F2 (ibm Function+F2) I found that the menu comes without pressing F2, in this case.
Comes the menu you mention. The list is
Normal Startup
BIOS Setup
Boot Menu
System Recovery

(focused is the top line. )
Down arrow once (highlights BIOS Setup)
Enter Return

[pcfan]

hello pcfan
Similar: laptop hooked with second display. There is no operating system drive connected. The second display has view of bios.

Will disconnect all drives force yours to show bios?
"*PS Bios in this machine can be access by pressing an small side button" Yes it is the tiniest of button on a machine here. Supposing to need to press F2 (ibm Function+F2) I found that the menu comes without pressing F2, in this case.
Comes the menu you mention. The list is
Normal Startup
BIOS Setup
Boot Menu
System Recovery

(focused is the top line. )
Down arrow once (highlights BIOS Setup)
Enter Return

Thank you for the list. I will be good to have and idea to work "blind" sort to say.